In NetBackup 18.104.22.168, TIR (True Image Restoration) catalog data pruning fails, leading to unexpected growth in the size of catalog.
|Article:TECH209826|||||Created: 2013-08-21|||||Updated: 2013-09-10|||||Article URL http://www.symantec.com/docs/TECH209826|
If a backup policy is configured to use the TIR (True Image Restoration) feature, NetBackup saves additional file and directory metadata from each client in all incremental backup images that are created by the policy.
Image cleanup will remove ("prune") the additional metadata from older incremental backup image files in the catalog after the policy has run a new full backup of the client and after the number of days indicated by the Keep true image restoration (TIR) information setting in the Clean-Up section of the master server Host Properties have elapsed.
Under NetBackup 22.214.171.124, this data "pruning" operation fails. It normally fails silently, but on some master servers the failure may also result in error messages being logged in the NetBackup error report.
The consequence of this failure is that the amount of data in the catalog will grow faster than expected. The rate of growth depends on the number of backup policies that are configured to use TIR, and the number of files that are protected by the policies configured to use TIR. In some situations, the failure to remove this additional data may result in the disk that holds the image catalog becoming full.
The following error message MAY be logged in the NetBackup All Log Entries report:
08/07/2013 13:06:04 nbmaster.mydomain.com - can not decompress file -
events out of sequence - image inconsistency (229)
Note: The absence of this error message does NOT mean that the problem does not exist.
Any master server running NetBackup 126.96.36.199 which has one or more backup policies configured to use the TIR option (either with or without move detection). No other versions of NetBackup are affected by this problem.
An incorrect SQL query performed by bpdbm's TIR data pruning operation returns invalid data.
ETA of Fix:
Symantec has acknowledged that the above mentioned issue (Etrack 3289941) is present in the current version(s) of the product(s) mentioned at the end of this article. Symantec is committed to product quality and satisfied customers. This issue is scheduled to be addressed in the following release:
- NetBackup 7.5 Maintenance Release 7 (188.8.131.52)
- NetBackup 52x0 Appliances 2.5 Release Update 4 (2.5.4)
When NetBackup 184.108.40.206 is released, please access the following link for download and README information:
Please note that Symantec Corporation reserves the right to remove any fix from the targeted release if it does not pass quality assurance tests or introduces new risks to overall code stability. Symantec's plans are subject to change and any action taken by you based on the above information or your reliance upon the above information is made at your own risk.
Please apply the hotfix attached to this document.
Symantec Bug ID: ET 3289890
Installation Location: master server
Installation Instructions: Please follow the EEB Installer instructions available in the Related Article linked below.
Package Contents: Please choose the appropriate platform after download:
eebinstaller.3289890.1.hpia64 HP-UX Itanium Installation
eebinstaller.3289890.1.linuxR_x86 RedHat x64 Installation
eebinstaller.3289890.1.linuxS_x86 Suse x64 Installation
eebinstaller.3289890.1.rs6000 AIX Installation
eebinstaller.3289890.1.solaris Solaris SPARC Installation
eebinstaller.3289890.1.solaris_x86 Solarix x64 Installation
eebinstaller.3289890.1.x86.exe Windows x86 Installation
eebinstaller.3289890.1.AMD64.exe Windows x64 Installation
1418962422 29024128 hpia64/bpdbm
4176073155 5804434 linuxR_x86/bpdbm
2757790306 5871328 linuxS_x86/bpdbm
3757628624 22800470 rs6000/bpdbm
2743214990 9659072 solaris/bpdbm
3080379157 10889992 solaris_x86/bpdbm
831860927 3333632 AMD64/bpdbm.exe
3329797629 2827776 x86/bpdbm.exe
Recommended service state: Shut down services on the master server before applying.
NetBackup 52x0 Appliances 2.5.3:
Please download the RPM attached below and access the Related Article linked below for instructions on applying the hotfix on an Appliance.
Note: After this hotfix is applied, the first image cleanup job may run for a much longer time than normal. This would be expected due to the large number of backup images which need to have old TIR data pruned from their image files in the catalog on disk.
Image data from NBDB being corrupted in bpdbm memory when performing the prune TIR operation, since upgrade from 220.127.116.11 to 18.104.22.168
Article URL http://www.symantec.com/docs/TECH209826