Diskgroup configuration backup copies stored under /etc/vx/cbr/bk/diskgroup_id directory keep increasing after upgrade to infoscale Volume Manager (VxVM) 6.0.
Article ID: 100009571
Updated On:
Description
Error Message
Directory listing of /etc/vx/cbr/bk/ would show backup copies of diskgroup configuration more than the value of NUM_BK or 5, whichever is greater.
# ls -la ./etc/vx/cbr/bk/testdg.1200641849.10.sys31/ | grep bkp
drwxr-xr-x 3 root root 4096 Sep 2 2012 bkp_20120902_095032
drwxr-xr-x 3 root root 4096 Sep 3 2012 bkp_20120903_094118
drwxr-xr-x 3 root root 4096 Sep 4 2012 bkp_20120904_094037
drwxr-xr-x 3 root root 4096 Sep 5 2012 bkp_20120905_094037
[...]
drwxr-xr-x 3 root root 4096 May 15 01:40 bkp_20130515_094039
drwxr-xr-x 3 root root 4096 May 16 01:40 bkp_20130516_094041
# ls -la ./etc/vx/cbr/bk/testdg.1200641849.10.sys31/ | grep bkp | wc -l
188
#
Cause
This issue is tracked via internal incident # 2680604.
Scripts associated with vxconfigbackupd gets number of backup copies currently available. If this is greater than required backup copies (as set by NUM_BK) then the script removes the old backup copies.
The script tries to get old backup copies through ls command. But the ls command gets executed on "/" directory rather than directory where backup copies are stored. So directory list which are to be removed is not populated and old backup copies are not removed. This keeps on adding backup copies.
Resolution
The script has been modified to get the old backup copies from the directory where backup copies are stored and remove them as per the value of NUM_BK (or 5, whichever is greater).
This issue is fixed in VxVM 6.0RP1 release. Please install 6.0RP1 (or above).
Applies To
This issue is applicable to systems running:
- VxVM 6.0
- All UNIX/Linux platforms
Issue/Introduction
VxVM process vxconfigbackupd backs up the diskgroup configuration copies under the respective diskgroup directory in /etc/vx/cbr/bk. vxconfigbackupd does not work correctly with NUM_BK mentioned in the file "/etc/vx/cbr/bk_config". Many "diskgroup configuration backup copies" were backed up rather than the number which is set to NUM_BK. From man pages of vxconfigbackupd:
/etc/vx/cbr/bk_config
Location of file for backup tunable parameters.
The following parameters can be defined: NUM_BK
Number of disk group configuration backup
copies. The value can be from 1 to 5. If you
specify a value greater than 5, VxVM interprets
the value as 5.
Additional Information
ETrack: 2680604
