In HP-UX, using vxrootmir may fail with volumes in rootdg crossing two subdisks
Article ID: 100015364
Updated On:
Resolution
1. Initialize the mirror disks:
# /etc/vx/bin/vxdisksetup -iB c0t2d0 # /etc/vx/bin/vxdisksetup -iB c0t4d0 2. Add the disks in rootdg:
# vxdg -g rootdg adddisk rootmir1=c0t2d0 # vxdg -g rootdg adddisk rootmir2=c0t4d0 3. Mirror all the volumes in rootdg manually:
#
vxassist -g rootdg mirror standvol rootmir1 # vxassist -g rootdg mirror swapvol rootmir1 # vxassist -g rootdg mirror rootvolrootmir1 # vxassist -g rootdg mirror homevol rootmir1 # vxassist -g rootdg mirror optvol alloc="rootmir1 rootmir2" # vxassist -g rootdg mirror tmpvol rootmir1 # vxassist -g rootdg mirror varvol rootmir2 # vxassist -g rootdg mirror usrvol rootmir2 4. Set up system boot information on the mirror disks:
# /opt/VRTS/bin/vxbootsetup rootmir1 5. Verify the contents of the updated LABEL file:
# vxvmboot -v/dev/rdsk/c0t2d0 LIF Label File @(1k) block # 1178 on VxVM Disk/dev/rdsk/c0t2d0: Label Entry: 0,Boot Volume start: 3168; length: 300MB Label Entry: 1, Root Volumestart: 1334368; length: 300MB Label Entry: 2, Swap Volumestart: 310368; length: 1000MB Label Entry: 3, Dump Volumestart: 310368; length: 1000 MB 6. Verify the completion of root disk mirroring:
# vxprint -g rootdg-ht Disk group:rootdg DGNAME NCONFIG NLOG MINORS GROUP-ID DMNAME DEVICE TYPE PRIVLEN PUBLEN STATE RVNAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL RLNAME RVG KSTATE STATE REM_HOSTREM_DG REM_RLNK V NAME RVG KSTATE STATE LENGTH READPOL PREFPLEXUTYPE PLNAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WIDMODE SDNAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE SVNAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFFAM/NM MODE DCNAME PARENTVOL LOGVOL SPNAME SNAPVOL DCO dgrootdg default default 0 1040756731.1025.yang dm rootdisk01 c0t6d0 simple 1024 4188096 - dm rootdisk02 c0t5d0 simple 1024 4188978 - dm rootmir1 c0t2d0 simple 1024 4188096 - dm rootmir2 c0t4d0 simple 1024 4188096 - v homevol - ENABLED ACTIVE 2048000 SELECT - fsgen pl homevol-01 homevol ENABLED ACTIVE 2048000 CONCAT - RW sd rootdisk01-04 homevol-01 rootdisk01 1714693 20480000 c0t6d0 ENA pl homevol-02 homevol ENABLED ACTIVE 2048000 CONCAT - RW sd rootmir1-04 homevol-02 rootmir11714693 2048000 0 c0t2d0 ENA v optvol - ENABLED ACTIVE 1024000 SELECT - fsgen pl optvol-01 optvol ENABLED ACTIVE 1024000 CONCAT - RW sd rootdisk01-05 optvol-01 rootdisk01 3762693408056 0 c0t6d0 ENA sd rootdisk02-01 optvol-01 rootdisk02 0 615944 408056 c0t5d0 ENA pl optvol-02 optvol ENABLED ACTIVE 1024000 CONCAT - RW sd rootmir2-01 optvol-02 rootmir20 1024000 0 c0t4d0 ENA v rootvol - ENABLED ACTIVE 383493 ROUND - root pl rootvol-01 rootvol ENABLED ACTIVE 383493 CONCAT - RW sd rootdisk01-03 rootvol-01 rootdisk01 1331200383493 0 c0t6d0 ENA pl rootvol-02 rootvol ENABLED ACTIVE 383493 CONCAT - RW sd rootmir1-03 rootvol-02 rootmir1 1331200 383493 0 c0t2d0 ENA v standvol - ENABLED ACTIVE 307200 ROUND - fsgen pl standvol-01 standvol ENABLED ACTIVE 307200 CONCAT - RW sd rootdisk01-01 standvol-01 rootdisk01 0 307200 0 c0t6d0 ENA pl standvol-02 standvol ENABLED ACTIVE 307200 CONCAT - RW sd rootmir1-01 standvol-02 rootmir10 307200 0 c0t2d0 ENA v swapvol - ENABLED ACTIVE 1024000 ROUND - swap pl swapvol-01 swapvol ENABLED ACTIVE 1024000 CONCAT - RW sd rootdisk01-02 swapvol-01 rootdisk01 3072001024000 0 c0t6d0 ENA pl swapvol-02 swapvol ENABLED ACTIVE 1024000 CONCAT - RW sd rootmir1-02 swapvol-02 rootmir1 307200 1024000 0 c0t2d0 ENA v tmpvol - ENABLED ACTIVE 409600 SELECT - fsgen pl tmpvol-01 tmpvol ENABLED ACTIVE 409600 CONCAT - RW sd rootdisk02-02 tmpvol-01 rootdisk02 615944 409600 0 c0t5d0 ENA pl tmpvol-02 tmpvol ENABLED ACTIVE 409600 CONCAT - RW sd rootmir2-02 tmpvol-02 rootmir2 1024000 409600 0 c0t4d0 ENA v usrvol - ENABLED ACTIVE 1089180 SELECT - fsgen pl usrvol-01 usrvol ENABLED ACTIVE 1089180 CONCAT - RW sd rootdisk02-04 usrvol-01 rootdisk02 2049544 10891800 c0t5d0 ENA pl usrvol-02 usrvol ENABLED TEMPRMSD1089180 CONCAT - WO sd rootmir2-04 usrvol-02 rootmir22457600 1089180 0 c0t4d0 ENA v varvol - ENABLED ACTIVE 1024000 SELECT - fsgen pl varvol-01 varvol ENABLED ACTIVE 1024000 CONCAT - RW sd rootdisk02-03 varvol-01 rootdisk02 1025544 10240000 c0t5d0 ENA pl varvol-02 varvol ENABLED ACTIVE 1024000 CONCAT - RW sd rootmir2-03 varvol-02 rootmir21433600 1024000 0 c0t4d0 ENA 7. Change the alternate boot path:
# setboot -a 0/0/1/0.2.0 8. Boot the machine off the mirror disk to make sure the disk is bootable.
Issue/Introduction
In HP-UX, using vxrootmir may fail with volumes in rootdg crossing two subdisks
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