How to create Instant Volume Snapshots in Veritas Volume Manager 4.0 onwards
Article ID: 100029321
Updated On:
Description
Description
How to create Instant Volume Snapshots in Veritas Volume Manager 4.0 onwardsResolution
This procedure details the steps required in creating Instant Volume Snapshots.
Note: This feature requires additional license of Veritas Volume Manager:
The additional License required is "VERITAS FlashSnap Option"
After installing the license we get the output of "vxlicrep -e" as below:
----------------------------------------------------------------------------------------------------------------------------------------------------
LicenseKey = XXX-XXXX-XXXX-XXXX-XXXX-XXXX-X
ProductName =VERITAS FlashSnap Option
LicenseType =Permanent
OEMID =XXXX
EditionsProduct =YES
Node LockFlag =0
User Defined :=
FASTRESYNC#VERITAS Volume Manager =Enabled
DGSJ#VERITAS Volume Manager =Enabled
CPU Count#VERITAS Volume Manager = Not Restricted
VXCKPT#VERITAS FileSystem = Enabled
CPU Count#VERITASFile System = Not Restricted
VERITASFlashSnap =Enabled
RESERVED =Disabled
Feature ID :=
Platform =Solaris
Version = 4.1
FMR_DGSJ#VERITAS Volume Manager =Enabled
----------------------------------------------------------------------------------------------------------------------------------------------------
==========================================================================================================
1.] Viewthe vxdisk liststatus
==========================================================================================================
sh-2.05#vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk - - online
Disk_12 auto:cdsdisk - - online
Disk_13 auto:cdsdisk - - online
Disk_14 auto:cdsdisk - - online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk - - online
Disk_17 auto:cdsdisk - - online
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
==========================================================================================================
2.] We first add only the four disks into the flash_dg diskgroup which are required in the primary volume.
==========================================================================================================
sh-2.05#vxdg init flash_dg flash_dg01=Disk_11 flash_dg02=Disk_12 flash_dg03=Disk_13flash_dg04=Disk_14
sh-2.05# vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk - - online
Disk_17 auto:cdsdisk - - online
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
sh-2.05# vxprint -htrgflash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096-
==========================================================================================================
3.] Now we create the Volume for the Primary Volume (If the Volume already exists with data so no need to recreate)
==========================================================================================================
sh-2.05#vxassist -g flash_dg -b make f_vol 8g layout=mirror-concatalloc=flash_dg01,flash_dg02,flash_dg03,flash_dg04
sh-2.05# vxprint -htrgflash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096-
v f_vol - ENABLED SYNC 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
sh-2.05#
sh-2.05#
==========================================================================================================
4.] Now we have the Volume in place so we create the filesystem (If data exists on
existing Volumes then there is no need to create filesystems)
==========================================================================================================
sh-2.05#mkfs -F vxfs /dev/vx/rdsk/flash_dg/f_vol
version 6layout
16777216 sectors, 8388608 blocks of size 1024, log size16384 blocks
largefilessupported
==========================================================================================================
5.] Create the mount point directory and mount the Volume (we should be having the directory in place if filesystem already exists)
==========================================================================================================
sh-2.05#mkdir /vobstore
sh-2.05# mount -F vxfs /dev/vx/dsk/flash_dg/f_vol/vobstore
sh-2.05# df-h
Filesystem size used avail capacity Mountedon
/dev/vx/dsk/bootdg/rootvol
48G 6.1G 41G 13% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 8.1G 24K 8.1G 1% /var/run
dmpfs 8.1G 0K 8.1G 0% /dev/vx/dmp
dmpfs 8.1G 0K 8.1G 0% /dev/vx/rdmp
swap 8.1G 0K 8.1G 0% /tmp
/dev/vx/dsk/bootdg/data
4.9G 602M 4.3G 13% /data
linux.veritas.com:/h/re/osdist
734G 691G 41G 95% /mnt
/dev/vx/dsk/flash_dg/f_vol
8.0G 19M 7.5G 1% /vobstore
==========================================================================================================
6.] Now we have the filesystem mounted so I will just copy some data in the filesystem(This test is just for testing in this lab. Data may already be existing on Volumes/Filesystems)
==========================================================================================================
sh-2.05#cp -r /opt /vobstore
sh-2.05# df-h
Filesystem size used avail capacity Mountedon
/dev/vx/dsk/bootdg/rootvol
48G 6.1G 41G 13% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 8.0G 24K 8.0G 1% /var/run
dmpfs 8.0G 0K 8.0G 0% /dev/vx/dmp
dmpfs 8.0G 0K 8.0G 0% /dev/vx/rdmp
swap 8.0G 0K 8.0G 0% /tmp
/dev/vx/dsk/bootdg/data
4.9G 602M 4.3G 13% /data
linux.veritas.com:/h/re/osdist
734G 691G 41G 95% /mnt
/dev/vx/dsk/flash_dg/f_vol
8.0G 1.3G 6.2G 18% /vobstore
==========================================================================================================
7.] Now we prepare the Volume which will be the primary Volume for the Snapshot. This creates the dco objects if they do not already exist.
==========================================================================================================
sh-2.05#vxsnap -g flash_dg prepare f_vol alloc=alloc=flash_dg01,flash_dg02,flash_dg03,flash_dg04
sh-2.05# vxprint-htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096-
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
==========================================================================================================
8.] Now we need to get some parameters from the Primary Volume which will be used to create our SnapshotVolume
==========================================================================================================
sh-2.05#LEN=`vxprint -g flash_dg -F%len f_vol`; echo $LEN
16777216
sh-2.05#DCONAME=`vxprint -g flash_dg -F%dco_name f_vol`; echo$DCONAME
f_vol_dco
sh-2.05# RSZ=`vxprint -g flash_dg -F%regionsz$DCONAME`; echo$RSZ
128
==========================================================================================================
9.] First we add the two other disks into the diskgroup which will be used to create the SnapshotVolume
==========================================================================================================
sh-2.05#vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk - - online
Disk_17 auto:cdsdisk - - online
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
sh-2.05# sh-2.05# vxdg -g flash_dgadddisk flash_dg05=Disk_16 flash_dg06=Disk_17
sh-2.05# vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk flash_dg05 flash_dg online
Disk_17 auto:cdsdisk flash_dg06 flash_dg online
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
==========================================================================================================
10.] Now we create the new volume for the snapshot volume with the parameters that we got from the above commands in step(8)
==========================================================================================================
sh-2.05#vxassist -g flash_dg make f_vol_snap $LEN layout=concat logtype=dco drl=ondcoversion=20 regionsz=$RSZ init=active flash_dg05 flash_dg06
sh-2.05#vxprint -htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
Note: Now we see that the f_vol_snap volume is created with the same parameters as that of the original volume and is now ready to be used as the SnapshotVolume.
==========================================================================================================
11.] This step is to confirm that the Snapshot Volume is ready for InstantSnapshots
==========================================================================================================
sh-2.05#vxsnap -g flash_dg prepare f_vol_snap alloc=flash_dg05,flash_dg06
VxVMvxassist ERROR V-5-1-7039 volume f_vol_snap is already instantready
sh-2.05# vxprint -htrg flash_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
==========================================================================================================
12.] Now we make the Instant Snapshot from the Primary Volume to the Snapshot Volume.(The data available on the Snapshot Volume will be of time when this command is executed.)
==========================================================================================================
sh-2.05#vxsnap -g flash_dg make source=f_vol/snapvol=f_vol_snap
sh-2.05# vxprint-htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
sp f_vol_snap_snpf_vol f_vol_dco
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
spf_vol_snp f_vol_snap f_vol_snap_dco
Note: So after the snapshot is created then we see that there is a "sp" for "Snapshot" inthe vxprint output.
==========================================================================================================
13.] Now we sync all the data on the Original Volume to the snapshot Volume so that we may disassociate the Snapshot Volume for Backend Processing.
==========================================================================================================
sh-2.05#vxsnap -g flas h_dg syncwait f_vol_snap &
sh-2.05# vxtask list
TASKID PTID TYPE/STATE PCT PROGRESS
183 SNAPSYNC/R 28.28% 0/16777216/4745344 SNAPSYNCf_vol_snap flash_dg
sh-2.05# vxtask monitor
TASKID PTIDTYPE/STATE PCT PROGRESS
183 SNAPSYNC/R 33.28% 0/16777216/5582976 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 33.29%0/16777216/5585024 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 33.30% 0/16777216/5587072 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 33.31%0/16777216/5589120 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 33.33% 0/16777216/5591168 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 33.34%0/16777216/5593216 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 33.35% 0/16777216/5595264 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 33.36%0/16777216/5597312 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 33.37% 0/16777216/5599360 SNAPSYNCf_vol_snap flash_dg
...
...
...
...
...
183 SNAPSYNC/R 99.71% 0/16777216/16728192 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.72%0/16777216/16730240 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.73% 0/16777216/16732288 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.74%0/16777216/16734336 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.76% 0/16777216/16736384 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.77%0/16777216/16738432 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.78% 0/16777216/16740480 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.79%0/16777216/16742528 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.81% 0/16777216/16744576 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.82%0/16777216/16746624 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.83% 0/16777216/16748672 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.84%0/16777216/16750720 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.85% 0/16777216/16752768 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.87%0/16777216/16754816 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.88% 0/16777216/16756864 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.89%0/16777216/16758912 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.90% 0/16777216/16760960 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.92%0/16777216/16763008 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.93% 0/16777216/16765056 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.94%0/16777216/16767104 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.95% 0/16777216/16769152 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.96%0/16777216/16771200 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.98% 0/16777216/16773248 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.99%0/16777216/16775296 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/EXITED
sh-2.05#
sh-2.05#vxprint -htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
sp f_vol_snap_snpf_vol f_vol_dco
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
spf_vol_snp f_vol_snap f_vol_snap_dco
sh-2.05#
==========================================================================================================
14.] After the Snapshot Volume is fully synchronized we may check the integrity of the Filesystem on the SnapshotVolume
==========================================================================================================
sh-2.05#fsck -F vxfs /dev/vx/rdsk/flash_dg/f_vol_snap
file system is clean - logreplay is not required
==> Now we have confirmed that the filesystem is clean on the snapshot volume.
==========================================================================================================
15.] We now disassociate the Snapshot Volume from the Primary Volume so that it can be used for Offhost/BackendOperations.
==========================================================================================================
sh-2.05#vxsnap -g flash_dg dis f_vol_snap
sh-2.05# vxprint -htrg flash_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
==>> So we see that the snapshot Volume has been disassociated from the Primary Volume.
==========================================================================================================
16.] Now we split the diskgroup to another diskgroup which will contain the SnapshotVolume (The new diskgroup will be automatically created and can be deported from this system to another system for Backend Processing)
==========================================================================================================
sh-2.05#vxdg split flash_dg flash_snap_dg flash_snap_vol_snap
==>> Now we verify that a new diskgroup is automatically created after the diskgroup split operation.
sh-2.05# vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk flash_dg05 flash_snap_dgonline
Disk_17 auto:cdsdisk flash_dg06 flash_snap_dgonline
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
==>> We can see that the Snapshot Volume is now in the Second Diskgroup which did not exist earlier.
sh-2.05# vxprint -htrg flash_snap_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_snap_dg default default 14000 1182422207.52.punv240-d7g
dmflash_dg05 Disk_16 auto 2048 10404096 -
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol_snap - DISABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap DISABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- DISABLED ACTIVE 1696 SELECT - gen
pl f_vol_snap_dcl-01f_vol_snap_dcl DISABLED ACTIVE 1696 CONCAT - RW
sd flash_dg06-02 f_vol_snap_dcl-01 flash_dg066373120 16960 Disk_17 ENA
==========================================================================================================
17.] Now we can see that the Snapshot Volume is now a part of the new diskgroup flash_snap_dg but in DISABLED ACTIVE state.
So need to start all volumes in the new diskgroup to make them ENABLED ACTIVE
==========================================================================================================
sh-2.05#vxvol -g flash_snap_dg startall
==>> We verify the Volumes are now in ENABLED ACTIVE state
sh-2.05# vxprint -htrg flash_snap_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_snap_dg default default 14000 1182422207.52.punv240-d7g
dmflash_dg05 Disk_16 auto 2048 10404096 -
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
==========================================================================================================
18.] Now we may deport the diskgroup to enable us to import it on another system for Backend Processing
==========================================================================================================
==>> Onthe Primary System
sh-2.05# vxdg deport flash_snap_dg
==>> Now we create a directory to mount thesnapshot Volume on the Remote Backend Processing System
sh-2.05# mkdir/vobstore_snap
==>> We mount the Snapshot Volume on the Remotesystem for processing/backup
sh-2.05# mount -F vxfs/dev/vx/dsk/flash_snap_dg/f_vol_snap /vobstore_snap
==>> Verify the data
sh-2.05# cd /vobstore_snap/
sh-2.05#ls
etc lost+found opt
sh-2.05# df-h
Filesystem size used avail capacity Mountedon
/dev/vx/dsk/bootdg/rootvol
48G 6.1G 41G 13% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 8.0G 24K 8.0G 1% /var/run
dmpfs 8.0G 0K 8.0G 0% /dev/vx/dmp
dmpfs 8.0G 0K 8.0G 0% /dev/vx/rdmp
swap 8.0G 0K 8.0G 0% /tmp
/dev/vx/dsk/bootdg/data
4.9G 602M 4.3G 13% /data
linux.veritas.com:/h/re/osdist
734G 691G 41G 95% /mnt
/dev/vx/dsk/flash_dg/f_vol
8.0G 1.3G 6.2G 18% /vobstore
/dev/vx/dsk/flash_snap_dg/f_vol_snap
8.0G 1.3G 6.2G 18% /vobstore_snap
==========================================================================================================
19.] Now the backup operation can be performed on the Snapshot Volume as required.
==========================================================================================================
==========================================================================================================
20.] After completing the operations on the snapshot volume, we may deport the diskgroup from the Backend Processing System and import it on the system with the PrimaryVolume and join the diskgroup back to the original diskgroup.
==========================================================================================================
==>> On the Remote System
sh-2.05# cd /
sh-2.05# umount/vobstore_snap/
sh-2.05# vxdg deport flash_snap_dg
==>> On the Primary System with the Primary Volume
sh-2.05# vxdg importflash_snap_dg
==>> Join the Snapshot Diskgroup back to the PrimaryDiskgroup
sh-2.05# vxdg join flash_snap_dg flash_dg
==>> Now we see that our flash_snap_dg is no longer there after the diskgroupjoin
sh-2.05# vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk flash_dg05 flash_dg online
Disk_17 auto:cdsdisk flash_dg06 flash_dg online
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
==========================================================================================================
21.] We need to start the Snapshot Volume again before any operations can be performed since the Snapshot Volumes will be in "DISABLED ACTIVE"state
==========================================================================================================
sh-2.05#vxprint -htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - DISABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap DISABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- DISABLED ACTIVE 1696 SELECT - gen
pl f_vol_snap_dcl-01f_vol_snap_dcl DISABLED ACTIVE 1696 CONCAT - RW
sd flash_dg06-02 f_vol_snap_dcl-01 flash_dg066373120 1696 0 Disk_17 ENA
==>> We start all volumes to get them in "ENABLED ACTIVE" state
sh-2.05# vxvol -gflash_dg start f_vol_snap
sh-2.05# vxprint -htrg flash_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
==========================================================================================================
22.] We now have our Snapshot Volume back into the flash_dg diskgroup and we are back to the stage where we can just start making the snapshot fromstep(12)
==========================================================================================================
Sowe get our Instant Snapshot procedure completed
Now from here you may again start with Step (12)
bash-2.05# vxsnap -g flash_dg makesource=f_vol/snapvol=f_vol_snap
==========================================================================================================
sh-2.05#mkfs -F vxfs /dev/vx/rdsk/flash_dg/f_vol
version 6layout
16777216 sectors, 8388608 blocks of size 1024, log size16384 blocks
largefilessupported
==========================================================================================================
5.] Create the mount point directory and mount the Volume (we should be having the directory in place if filesystem already exists)
==========================================================================================================
sh-2.05#mkdir /vobstore
sh-2.05# mount -F vxfs /dev/vx/dsk/flash_dg/f_vol/vobstore
sh-2.05# df-h
Filesystem size used avail capacity Mountedon
/dev/vx/dsk/bootdg/rootvol
48G 6.1G 41G 13% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 8.1G 24K 8.1G 1% /var/run
dmpfs 8.1G 0K 8.1G 0% /dev/vx/dmp
dmpfs 8.1G 0K 8.1G 0% /dev/vx/rdmp
swap 8.1G 0K 8.1G 0% /tmp
/dev/vx/dsk/bootdg/data
4.9G 602M 4.3G 13% /data
linux.veritas.com:/h/re/osdist
734G 691G 41G 95% /mnt
/dev/vx/dsk/flash_dg/f_vol
8.0G 19M 7.5G 1% /vobstore
==========================================================================================================
6.] Now we have the filesystem mounted so I will just copy some data in the filesystem(This test is just for testing in this lab. Data may already be existing on Volumes/Filesystems)
==========================================================================================================
sh-2.05#cp -r /opt /vobstore
sh-2.05# df-h
Filesystem size used avail capacity Mountedon
/dev/vx/dsk/bootdg/rootvol
48G 6.1G 41G 13% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 8.0G 24K 8.0G 1% /var/run
dmpfs 8.0G 0K 8.0G 0% /dev/vx/dmp
dmpfs 8.0G 0K 8.0G 0% /dev/vx/rdmp
swap 8.0G 0K 8.0G 0% /tmp
/dev/vx/dsk/bootdg/data
4.9G 602M 4.3G 13% /data
linux.veritas.com:/h/re/osdist
734G 691G 41G 95% /mnt
/dev/vx/dsk/flash_dg/f_vol
8.0G 1.3G 6.2G 18% /vobstore
==========================================================================================================
7.] Now we prepare the Volume which will be the primary Volume for the Snapshot. This creates the dco objects if they do not already exist.
==========================================================================================================
sh-2.05#vxsnap -g flash_dg prepare f_vol alloc=alloc=flash_dg01,flash_dg02,flash_dg03,flash_dg04
sh-2.05# vxprint-htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096-
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
==========================================================================================================
8.] Now we need to get some parameters from the Primary Volume which will be used to create our SnapshotVolume
==========================================================================================================
sh-2.05#LEN=`vxprint -g flash_dg -F%len f_vol`; echo $LEN
16777216
sh-2.05#DCONAME=`vxprint -g flash_dg -F%dco_name f_vol`; echo$DCONAME
f_vol_dco
sh-2.05# RSZ=`vxprint -g flash_dg -F%regionsz$DCONAME`; echo$RSZ
128
==========================================================================================================
9.] First we add the two other disks into the diskgroup which will be used to create the SnapshotVolume
==========================================================================================================
sh-2.05#vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk - - online
Disk_17 auto:cdsdisk - - online
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
sh-2.05# sh-2.05# vxdg -g flash_dgadddisk flash_dg05=Disk_16 flash_dg06=Disk_17
sh-2.05# vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk flash_dg05 flash_dg online
Disk_17 auto:cdsdisk flash_dg06 flash_dg online
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
==========================================================================================================
10.] Now we create the new volume for the snapshot volume with the parameters that we got from the above commands in step(8)
==========================================================================================================
sh-2.05#vxassist -g flash_dg make f_vol_snap $LEN layout=concat logtype=dco drl=ondcoversion=20 regionsz=$RSZ init=active flash_dg05 flash_dg06
sh-2.05#vxprint -htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
Note: Now we see that the f_vol_snap volume is created with the same parameters as that of the original volume and is now ready to be used as the SnapshotVolume.
==========================================================================================================
11.] This step is to confirm that the Snapshot Volume is ready for InstantSnapshots
==========================================================================================================
sh-2.05#vxsnap -g flash_dg prepare f_vol_snap alloc=flash_dg05,flash_dg06
VxVMvxassist ERROR V-5-1-7039 volume f_vol_snap is already instantready
sh-2.05# vxprint -htrg flash_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
==========================================================================================================
12.] Now we make the Instant Snapshot from the Primary Volume to the Snapshot Volume.(The data available on the Snapshot Volume will be of time when this command is executed.)
==========================================================================================================
sh-2.05#vxsnap -g flash_dg make source=f_vol/snapvol=f_vol_snap
sh-2.05# vxprint-htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
sp f_vol_snap_snpf_vol f_vol_dco
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
spf_vol_snp f_vol_snap f_vol_snap_dco
Note: So after the snapshot is created then we see that there is a "sp" for "Snapshot" inthe vxprint output.
==========================================================================================================
13.] Now we sync all the data on the Original Volume to the snapshot Volume so that we may disassociate the Snapshot Volume for Backend Processing.
==========================================================================================================
sh-2.05#vxsnap -g flas h_dg syncwait f_vol_snap &
sh-2.05# vxtask list
TASKID PTID TYPE/STATE PCT PROGRESS
183 SNAPSYNC/R 28.28% 0/16777216/4745344 SNAPSYNCf_vol_snap flash_dg
sh-2.05# vxtask monitor
TASKID PTIDTYPE/STATE PCT PROGRESS
183 SNAPSYNC/R 33.28% 0/16777216/5582976 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 33.29%0/16777216/5585024 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 33.30% 0/16777216/5587072 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 33.31%0/16777216/5589120 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 33.33% 0/16777216/5591168 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 33.34%0/16777216/5593216 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 33.35% 0/16777216/5595264 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 33.36%0/16777216/5597312 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 33.37% 0/16777216/5599360 SNAPSYNCf_vol_snap flash_dg
...
...
...
...
...
183 SNAPSYNC/R 99.71% 0/16777216/16728192 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.72%0/16777216/16730240 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.73% 0/16777216/16732288 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.74%0/16777216/16734336 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.76% 0/16777216/16736384 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.77%0/16777216/16738432 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.78% 0/16777216/16740480 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.79%0/16777216/16742528 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.81% 0/16777216/16744576 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.82%0/16777216/16746624 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.83% 0/16777216/16748672 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.84%0/16777216/16750720 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.85% 0/16777216/16752768 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.87%0/16777216/16754816 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.88% 0/16777216/16756864 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.89%0/16777216/16758912 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.90% 0/16777216/16760960 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.92%0/16777216/16763008 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.93% 0/16777216/16765056 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.94%0/16777216/16767104 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.95% 0/16777216/16769152 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.96%0/16777216/16771200 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/R 99.98% 0/16777216/16773248 SNAPSYNCf_vol_snap flash_dg
183 SNAPSYNC/R 99.99%0/16777216/16775296 SNAPSYNC f_vol_snap flash_dg
183 SNAPSYNC/EXITED
sh-2.05#
sh-2.05#vxprint -htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
sp f_vol_snap_snpf_vol f_vol_dco
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
spf_vol_snp f_vol_snap f_vol_snap_dco
sh-2.05#
==========================================================================================================
14.] After the Snapshot Volume is fully synchronized we may check the integrity of the Filesystem on the SnapshotVolume
==========================================================================================================
sh-2.05#fsck -F vxfs /dev/vx/rdsk/flash_dg/f_vol_snap
file system is clean - logreplay is not required
==> Now we have confirmed that the filesystem is clean on the snapshot volume.
==========================================================================================================
15.] We now disassociate the Snapshot Volume from the Primary Volume so that it can be used for Offhost/BackendOperations.
==========================================================================================================
sh-2.05#vxsnap -g flash_dg dis f_vol_snap
sh-2.05# vxprint -htrg flash_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
==>> So we see that the snapshot Volume has been disassociated from the Primary Volume.
==========================================================================================================
16.] Now we split the diskgroup to another diskgroup which will contain the SnapshotVolume (The new diskgroup will be automatically created and can be deported from this system to another system for Backend Processing)
==========================================================================================================
sh-2.05#vxdg split flash_dg flash_snap_dg flash_snap_vol_snap
==>> Now we verify that a new diskgroup is automatically created after the diskgroup split operation.
sh-2.05# vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk flash_dg05 flash_snap_dgonline
Disk_17 auto:cdsdisk flash_dg06 flash_snap_dgonline
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
==>> We can see that the Snapshot Volume is now in the Second Diskgroup which did not exist earlier.
sh-2.05# vxprint -htrg flash_snap_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_snap_dg default default 14000 1182422207.52.punv240-d7g
dmflash_dg05 Disk_16 auto 2048 10404096 -
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol_snap - DISABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap DISABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- DISABLED ACTIVE 1696 SELECT - gen
pl f_vol_snap_dcl-01f_vol_snap_dcl DISABLED ACTIVE 1696 CONCAT - RW
sd flash_dg06-02 f_vol_snap_dcl-01 flash_dg066373120 16960 Disk_17 ENA
==========================================================================================================
17.] Now we can see that the Snapshot Volume is now a part of the new diskgroup flash_snap_dg but in DISABLED ACTIVE state.
So need to start all volumes in the new diskgroup to make them ENABLED ACTIVE
==========================================================================================================
sh-2.05#vxvol -g flash_snap_dg startall
==>> We verify the Volumes are now in ENABLED ACTIVE state
sh-2.05# vxprint -htrg flash_snap_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_snap_dg default default 14000 1182422207.52.punv240-d7g
dmflash_dg05 Disk_16 auto 2048 10404096 -
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
==========================================================================================================
18.] Now we may deport the diskgroup to enable us to import it on another system for Backend Processing
==========================================================================================================
==>> Onthe Primary System
sh-2.05# vxdg deport flash_snap_dg
==>> Now we create a directory to mount thesnapshot Volume on the Remote Backend Processing System
sh-2.05# mkdir/vobstore_snap
==>> We mount the Snapshot Volume on the Remotesystem for processing/backup
sh-2.05# mount -F vxfs/dev/vx/dsk/flash_snap_dg/f_vol_snap /vobstore_snap
==>> Verify the data
sh-2.05# cd /vobstore_snap/
sh-2.05#ls
etc lost+found opt
sh-2.05# df-h
Filesystem size used avail capacity Mountedon
/dev/vx/dsk/bootdg/rootvol
48G 6.1G 41G 13% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 8.0G 24K 8.0G 1% /var/run
dmpfs 8.0G 0K 8.0G 0% /dev/vx/dmp
dmpfs 8.0G 0K 8.0G 0% /dev/vx/rdmp
swap 8.0G 0K 8.0G 0% /tmp
/dev/vx/dsk/bootdg/data
4.9G 602M 4.3G 13% /data
linux.veritas.com:/h/re/osdist
734G 691G 41G 95% /mnt
/dev/vx/dsk/flash_dg/f_vol
8.0G 1.3G 6.2G 18% /vobstore
/dev/vx/dsk/flash_snap_dg/f_vol_snap
8.0G 1.3G 6.2G 18% /vobstore_snap
==========================================================================================================
19.] Now the backup operation can be performed on the Snapshot Volume as required.
==========================================================================================================
==========================================================================================================
20.] After completing the operations on the snapshot volume, we may deport the diskgroup from the Backend Processing System and import it on the system with the PrimaryVolume and join the diskgroup back to the original diskgroup.
==========================================================================================================
==>> On the Remote System
sh-2.05# cd /
sh-2.05# umount/vobstore_snap/
sh-2.05# vxdg deport flash_snap_dg
==>> On the Primary System with the Primary Volume
sh-2.05# vxdg importflash_snap_dg
==>> Join the Snapshot Diskgroup back to the PrimaryDiskgroup
sh-2.05# vxdg join flash_snap_dg flash_dg
==>> Now we see that our flash_snap_dg is no longer there after the diskgroupjoin
sh-2.05# vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0 auto:cdsdisk - - online
Disk_1 auto:cdsdisk CLR1 rdg-evidenceonline
Disk_2 auto:cdsdisk JBOD3510_1 rdg-evidenceonline
Disk_3 auto:cdsdisk SENA01 rdg-evidenceonline
Disk_4 auto:cdsdisk - - online
Disk_5 auto - - error
Disk_6 auto:cdsdisk - - online
Disk_7 auto:cdsdisk - - online
Disk_8 auto:cdsdisk CLR2 rdg-evidenceonline
Disk_9 auto:cdsdisk - - online
Disk_10 auto:cdsdisk - - online
Disk_11 auto:cdsdisk flash_dg01 flash_dg online
Disk_12 auto:cdsdisk flash_dg02 flash_dg online
Disk_13 auto:cdsdisk flash_dg03 flash_dg online
Disk_14 auto:cdsdisk flash_dg04 flash_dg online
Disk_15 auto:cdsdisk - - online
Disk_16 auto:cdsdisk flash_dg05 flash_dg online
Disk_17 auto:cdsdisk flash_dg06 flash_dg online
Disk_18 auto:cdsdisk - - online
Disk_19 auto:cdsdisk - - online
Disk_20 auto:cdsdisk - - online
Disk_21 auto:cdsdisk - - online
Disk_22 auto:cdsdisk - - online
Disk_23 auto:cdsdisk - - online
Disk_24 auto:cdsdisk - - online
Disk_25 auto:cdsdisk - - online
Disk_26 auto:cdsdisk - - online
Disk_27 auto:cdsdisk - - online
Disk_29 auto:cdsdisk - - online
Disk_30 auto:cdsdisk - - online
Disk_31 auto:cdsdisk - - online
c1t0d0s2 auto:sliced rootdisk rootdg online
c1t1d0s2 auto:sliced rootmirror rootdg online
==========================================================================================================
21.] We need to start the Snapshot Volume again before any operations can be performed since the Snapshot Volumes will be in "DISABLED ACTIVE"state
==========================================================================================================
sh-2.05#vxprint -htrg flash_dg
DG NAME NCONFIG NLOG MINORS GROUP-ID
STNAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - DISABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap DISABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- DISABLED ACTIVE 1696 SELECT - gen
pl f_vol_snap_dcl-01f_vol_snap_dcl DISABLED ACTIVE 1696 CONCAT - RW
sd flash_dg06-02 f_vol_snap_dcl-01 flash_dg066373120 1696 0 Disk_17 ENA
==>> We start all volumes to get them in "ENABLED ACTIVE" state
sh-2.05# vxvol -gflash_dg start f_vol_snap
sh-2.05# vxprint -htrg flash_dg
DGNAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VTNAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg flash_dg default default 19000 1182420217.51.punv240-d7g
dmflash_dg01 Disk_11 auto 2048 8292096 -
dm flash_dg02 Disk_12 auto 2048 8292096 -
dm flash_dg03 Disk_13 auto 2048 10404096-
dm flash_dg04 Disk_14 auto 2048 10404096 -
dm flash_dg05 Disk_16 auto 2048 10404096-
dm flash_dg06 Disk_17 auto 2048 8292096 -
v f_vol - ENABLED ACTIVE 16777216 SELECT - fsgen
plf_vol-01 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg01-01f_vol-01 flash_dg010 6373120 0 Disk_11 ENA
sd flash_dg03-01 f_vol-01 flash_dg030 10404096 6373120 Disk_13 ENA
plf_vol-02 f_vol ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg02-01f_vol-02 flash_dg020 6373120 0 Disk_12 ENA
sd flash_dg04-01 f_vol-02 flash_dg040 10404096 6373120 Disk_14 ENA
dcf_vol_dco f_vol f_vol_dcl
v f_vol_dcl - ENABLED ACTIVE 1696 SELECT - gen
plf_vol_dcl-01 f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sdflash_dg01-02 f_vol_dcl-01 flash_dg01 6373120 1696 0 Disk_11 ENA
pl f_vol_dcl-02f_vol_dcl ENABLED ACTIVE 1696 CONCAT - RW
sd flash_dg02-02f_vol_dcl-02 flash_dg02 6373120 1696 0 Disk_12 ENA
v f_vol_snap - ENABLED ACTIVE 16777216SELECT - fsgen
pl f_vol_snap-01f_vol_snap ENABLED ACTIVE 16777216CONCAT - RW
sd flash_dg05-01f_vol_snap-01 flash_dg05 0 10404096 0 Disk_16 ENA
sd flash_dg06-01 f_vol_snap-01 flash_dg060 6373120 10404096 Disk_17 ENA
dcf_vol_snap_dco f_vol_snap f_vol_snap_dcl
v f_vol_snap_dcl- ENABLED ACTIVE 1696 SELECT - gen
plf_vol_snap_dcl-01 f_vol_snap_dcl ENABLED ACTIVE 1696CONCAT - RW
sd flash_dg06-02f_vol_snap_dcl-01 flash_dg06 6373120 16960 Disk_17 ENA
==========================================================================================================
22.] We now have our Snapshot Volume back into the flash_dg diskgroup and we are back to the stage where we can just start making the snapshot fromstep(12)
==========================================================================================================
Sowe get our Instant Snapshot procedure completed
Now from here you may again start with Step (12)
bash-2.05# vxsnap -g flash_dg makesource=f_vol/snapvol=f_vol_snap
Issue/Introduction
How to create Instant Volume Snapshots in Veritas Volume Manager 4.0 onwards
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