Backup Central

Hi,

I'm a bit confused now about Cumulative incremental backups - If data is restored from last cumulative incremental backup, files that have been created between last full and the incremental backup are not deleted by NetBackup, which resulted in my restore failing because it run out of space on that drive- there were too many new files created after last the incremental.

All I need is a reliable method of returning the partition to exact state as it was when last incremental backup was taken - I was hoping True Image Backup would do that, but it seems to have the same behaviour in regards to the files created between full and incremental backups.

Any suggestions on this?

Thanks

John

I have never worked with the option, but you might want to look at the tir feature. An option you can set in the policy.

len

-----Original Message-----
From: veritas-bu-bounces < at > mailman.eng.auburn.edu [mailto:veritas-bu-bounces < at > mailman.eng.auburn.edu] On Behalf Of john_ausi
Sent: Wednesday, November 02, 2011 7:22 PM
To: VERITAS-BU < at > MAILMAN.ENG.AUBURN.EDU
Subject: [Veritas-bu] Restores from Cumulative incremental backups

Hi,

I'm a bit confused now about Cumulative incremental backups - If data is restored from last cumulative incremental backup, files that have been created between last full and the incremental backup are not deleted by NetBackup, which resulted in my restore failing because it run out of space on that drive- there were too many new files created after last the incremental.

All I need is a reliable method of returning the partition to exact state as it was when last incremental backup was taken - I was hoping True Image Backup would do that, but it seems to have the same behaviour in regards to the files created between full and incremental backups.

Any suggestions on this?

Thanks

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I don't quite understand the wording of your question, but maybe my explanation will help.

A cumulative incremental in NetBackup will take a copy of any file that was created or modified since the last full backup. That TIR adds is knowledge of what files were deleted in that same time frame. Or to say it in a different way, what files are on the full backup that are no longer on the file system at the point the cumulative incremental was run.

When a restore of an incremental is executed with TIR in play, deleted files are not restored. Hence it is a 'truer' picture of exactly how the file system looked on a particular incremental backup.

I suspect you have something like this going on:
Full backup: 1000 files backed up.
Time passes, 200 of those are deleted, 200 different files are created.
Cumulative Inc: 200 files backed up.

You restore with a time period that includes the cumulative and without TIR, and you get 1200 files, and possibly a disk full. You restore the same with TIR, and you get 1000 files.
------------------
Jim VandeVegt | Technical Integrator, ETG
Physicians Mutual | 2600 Dodge Street | Omaha, NE 68131
402.930.2649 | PhysiciansMutual.com | Jim.VandeVegt < at > PhysiciansMutual.com

Insurance for all of us.™
health | life | retirement
________________________________________
From: veritas-bu-bounces < at > mailman.eng.auburn.edu [veritas-bu-bounces < at > mailman.eng.auburn.edu] On Behalf Of john_ausi [nbu-forum < at > backupcentral.com]
Sent: Wednesday, November 02, 2011 18:22
To: VERITAS-BU < at > MAILMAN.ENG.AUBURN.EDU
Subject: [Veritas-bu] Restores from Cumulative incremental backups

Hi,

I'm a bit confused now about Cumulative incremental backups - If data is restored from last cumulative incremental backup, files that have been created between last full and the incremental backup are not deleted by NetBackup, which resulted in my restore failing because it run out of space on that drive- there were too many new files created after last the incremental.

All I need is a reliable method of returning the partition to exact state as it was when last incremental backup was taken - I was hoping True Image Backup would do that, but it seems to have the same behaviour in regards to the files created between full and incremental backups.

Any suggestions on this?

Thanks

+----------------------------------------------------------------------
|This was sent by johnsimson < at > ausi.com via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+----------------------------------------------------------------------


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Veritas-bu maillist - Veritas-bu < at > mailman.eng.auburn.edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu____________________________________________________________
This message and any attachments are confidential, may contain privileged information, and are intended solely for the recipient named above.
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If you have received this message in error, you should notify the sender by return email and delete the message from your computer system.

_______________________________________________
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I just realized my mistake in the question - I'm concerned about the files created after last incremental and the restore, not the ones created between full and incremental (which would obviously be backed up by incremental) Essentially, after restore from cumulative incremental I was hoping to get an exact state as the partition was when incremental was made - but the problem is that if large amounts of files are created just before restore, it will fail since there are lots of new files and no space to restore all old ones.

------------Original message-----------------
Hi,

I'm a bit confused now about Cumulative incremental backups - If data is restored from last cumulative incremental backup, files that have been created between last full and the incremental backup are not deleted by NetBackup, which resulted in my restore failing because it run out of space on that drive- there were too many new files created after last the incremental.

All I need is a reliable method of returning the partition to exact state as it was when last incremental backup was taken - I was hoping True Image Backup would do that, but it seems to have the same behaviour in regards to the files created between full and incremental backups.

Any suggestions on this?

Thanks
------------Original message-----------------

You would have to manually delete those files. NetBackup doesn't have that function AFAIK. If you are restoring an entire file system this could be accomplished by newfs (UNIX) or a format (Windows).
------------------
Jim VandeVegt | Technical Integrator, ETG
Physicians Mutual | 2600 Dodge Street | Omaha, NE 68131
402.930.2649 | PhysiciansMutual.com | Jim.VandeVegt < at > PhysiciansMutual.com

Insurance for all of us.™
health | life | retirement
________________________________________
From: veritas-bu-bounces < at > mailman.eng.auburn.edu [veritas-bu-bounces < at > mailman.eng.auburn.edu] On Behalf Of john_ausi [nbu-forum < at > backupcentral.com]
Sent: Thursday, November 03, 2011 03:04
To: VERITAS-BU < at > MAILMAN.ENG.AUBURN.EDU
Subject: [Veritas-bu] Restores from Cumulative incremental backups

I just realized my mistake in the question - I'm concerned about the files created after last incremental and the restore, not the ones created between full and incremental (which would obviously be backed up by incremental) Essentially, after restore from cumulative incremental I was hoping to get an exact state as the partition was when incremental was made - but the problem is that if large amounts of files are created just before restore, it will fail since there are lots of new files and no space to restore all old ones.

------------Original message-----------------
Hi,

I'm a bit confused now about Cumulative incremental backups - If data is restored from last cumulative incremental backup, files that have been created between last full and the incremental backup are not deleted by NetBackup, which resulted in my restore failing because it run out of space on that drive- there were too many new files created after last the incremental.

All I need is a reliable method of returning the partition to exact state as it was when last incremental backup was taken - I was hoping True Image Backup would do that, but it seems to have the same behaviour in regards to the files created between full and incremental backups.

Any suggestions on this?

Thanks
------------Original message-----------------

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|This was sent by johnsimson < at > ausi.com via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
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_______________________________________________
Veritas-bu maillist - Veritas-bu < at > mailman.eng.auburn.edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu____________________________________________________________
This message and any attachments are confidential, may contain privileged information, and are intended solely for the recipient named above.
If you are not the intended recipient, or a person responsible for delivery to the named recipient, you are notified that any review, distribution, dissemination or copying is prohibited.
If you have received this message in error, you should notify the sender by return email and delete the message from your computer system.

_______________________________________________
Veritas-bu maillist - Veritas-bu < at > mailman.eng.auburn.edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu