If that really is Zoeky's question it would be similar to a discussion I had with Engineering some time ago.
It would be nice to obtain a list of backups which expired on each day but unfortunately there is no such log or auditing facility.
Garbage collection logging provides information on when GC, which parameters it ran with, how it behaved and performed and any issues it encountered. Unfortunately it doesn't record which actual backup hashes are pruned from the hash file system.
There is an internal "accounting" type database which records information persistently and could be used for troubleshooting issues of this nature but the tools to make use of this are available only to Avamar Engineering.
If you're seeing some kind of issue where you suspect a problem with Avamar backup retention I would suggest opening a support case.
If you're looking for auditing capability a product enhancement request would be more appropriate. If this is what you are looking for we could propose it to the Engineering team for consideration.
Thanks, Nicholas. Yes - I had a similar query in to product engineering some time ago, and they relayed the same fact.
I'd been experimenting with various reports in DPA - I can get a list of the largest clients and a list of upcoming backup set expirations, but this doesn't account for any deduplication, so you can't get a true, accurate picture of how much space was reclaimed.
To get a rough idea of how much space might be reclaimed by deleting a backup, locate the backup in the DPN Summary report and refer to how much unique data it added. More information on this in the Avamar reporting guide available here
umichklewis
3 Apprentice
•
1.2K Posts
1
August 11th, 2015 06:00
If I understand your question, I think you're trying to find out what backups were deleted via the garbage collector, correct?
Zoeky
2 Posts
0
August 12th, 2015 00:00
Hi Karl,
yes this is correct. Last week the garbage collector deleted 1,4Tb and I want to know what backups were deleted. Can you help me?
Thanks
Avamar Exorcist
462 Posts
2
August 12th, 2015 03:00
If that really is Zoeky's question it would be similar to a discussion I had with Engineering some time ago.
It would be nice to obtain a list of backups which expired on each day but unfortunately there is no such log or auditing facility.
Garbage collection logging provides information on when GC, which parameters it ran with, how it behaved and performed and any issues it encountered. Unfortunately it doesn't record which actual backup hashes are pruned from the hash file system.
There is an internal "accounting" type database which records information persistently and could be used for troubleshooting issues of this nature but the tools to make use of this are available only to Avamar Engineering.
If you're seeing some kind of issue where you suspect a problem with Avamar backup retention I would suggest opening a support case.
If you're looking for auditing capability a product enhancement request would be more appropriate. If this is what you are looking for we could propose it to the Engineering team for consideration.
umichklewis
3 Apprentice
•
1.2K Posts
1
August 12th, 2015 05:00
Thanks, Nicholas. Yes - I had a similar query in to product engineering some time ago, and they relayed the same fact.
I'd been experimenting with various reports in DPA - I can get a list of the largest clients and a list of upcoming backup set expirations, but this doesn't account for any deduplication, so you can't get a true, accurate picture of how much space was reclaimed.
Avamar Exorcist
462 Posts
0
August 17th, 2015 01:00
You can check this in several ways;
1) Through the GUI (last GC run only)
1) Using the capacity.sh script
2) With "avmaint gcstatus" (last GC run only)
3) Using dumpmaintlogs
dumpmaintlogs --types=gc --days=5
2015/08/16-07:00:33.11399 {0.0}megabytes-recovered="1" passes="7" start-time="1439708426" elapsed-time="4" end-time="1439708430"/>
To get a rough idea of how much space might be reclaimed by deleting a backup, locate the backup in the DPN Summary report and refer to how much unique data it added. More information on this in the Avamar reporting guide available here