It merely cleans up expired backup images.

Each backup job has an entry in the images database on the master. Expiration date and time is determined by the retention period in the schedule.

These images are not automatically cleaned out at the very second that they expire. The master server runs regular 'cleanup' jobs to remove expired images from the image catalog. The default is every 12 hours.

This process will also deassign tapes once all images on them have expired.

what if we dont run these?

Hi Puneet,

Why is this concerning you, providing the cleanup jobs are running correctly, forget about them,  they HAVE to run as they are part of how NetBackup works.

But, to answer your question.

1. When images expire from the catalog they will not be deleted.

2, Tapes will not become expred and abvailable for re-use.

3. In th case of disk storage being used, the fragments will not be deleted from the disks.

The effect, the catalog will not clear down, you will run out of disk (if used) and run out of tapes.

Martin

WE HAVE slp,so whats image cleanup in that?

nbstserv process is involved to move images to various states with the EMM database (eg.completed, eligible for deletion etc ..) but, the image cleaup is the same.

You did not answer my question, as to why this is an issue for you ?

Martin

ok thanks.

This is also true that when high water mark is reached,NBU runs image cleanup to delete expired images till low water mark defined?

Yes - that is correct - HWM will trigger the cleanup of duplicated images (one copy) and will attempt to clear down to the LWM.

If you question has been answered, please mark the post that helped you the most as the solution.

Martin

this haapens with DATA DOMAIN ALSO?

Yes, but it is the communication to the DD device will be via the OST plugin - we are not really involved with that (it is provided by DD) and should 'just work' - so, although a little more complex, from the NBU side, it is the same.

Martin

what is DD is full?

Why should it be full  - the image cleanup will take care of it ..

If it is full, either something has gone wrong, or, the DD is not large enough to hold your backups with the retention period you have set.

M

can u provide me with some DD commands?

DD commands are contained in DataDomain admin guides and does not form part of any NetBackup documentation.

If you are a registered DD customer, you can download the documentation from their web site. Else, ask your DD reseller.

I believe your question regarding NetBackup Image Cleanup has been answered.

Kindly close this thread by selecting a post that answered your Image Cleanup question and Mark As Solution.

You need to start a new thread for DD issues/ commands.

How image cleanup works has been explained, and was the question for this thread.

Please start a new thread for a new questions, and, mark the post in this thread that helped you the most as the solution.

Also, you need to explain the issue better  (BUT IN A NEW THREAD - thanks)

"can u provide me with some DD commands?"

1)  This is a NetBackup forum, not a DataDomain forum  ...

2)  Do you want DD commands, or, NetBackup commands

3)  What are you trying to achive - there are many many commands ...

Martin

so at end image clean up has nothing to do with DD.

its only for storage unit.?

NBU will simply pass cleanup instruction to DD via the OST plugin.

What happens on DD side needs to be checked with DD tools.
DD commands/tools do not form part of NBU commands/tools/documentation.

ok.And image clean up in activity monitoring clear expired images in image catalog(EMM) IE ON DISK AND TAPES?

Yes, Image Cleanup in Activity Monitor clears up Basic Disk/ Advanced Disk and tape.

Martin

it cleans from EMM?

Your question has been answered ten times over!

If you need to understand the different components of NetBackup Catalogs and databases, PLEASE read up about Catalogs in NBU Admin Guide 1.

Look for this topic:

Parts of the NetBackup catalog

Yes, it cleans from EMM ...

Please explain why you are so concerned about this - NetBackup should be left alone for cleanup - if it goes wrong, we will fix it, it is it working, forget about it.

If you run cleanup commands without understanding exactly what you are doing, you risk data loss.

Apologies for being direct, and I am sure Marianne (one of the most experienced people on this forum) will agree with me - but you need a lot of experience with NBU before playing about with cleaning up the catalog.

If NBU is running correctly, is installed correctly and the backup environment has been designed correctly,it should work fine with no 'cleanup' commands needing to be run manually.

Martin