Re: [Veritas-bu] NBU 6.5.1 restores miss files

Hello Mark,

I have a few questions about your report.

- When you say that all your backup data resides on 2 Data Domain storage devices, I assume you mean just the backup media , tape or disk pool, and not the disk unit holding the restored data?

- Did Netbackup report a failure to restore files? If so what reason was it reporting.

- You talk about finding that missing files were found after the servers were turned over to your DBA’s. Do you mean missing files showed up without doing a restore? If so what file systems were you using? Windows 2003 ntfs, solaris zfs, Linux ext3? Local disk or remote?

- So are you talking about a failure of Netbackup or server/filesystems or both?

A very interesting problem.

Thanks len

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Mark Glazerman
Sent: Monday, January 19, 2009 3:03 PM
To: Veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] NBU 6.5.1 restores miss files

I’ve just got back to the office after a 24 DR test and wanted to get this question out there before I forget.

We found during our testing that even if an entire directory tree was selected to be restored, after the restore finished we would be missing random files and directories. Re-running the restore with the same parameters would almost always lay down additional data which should have been restored the first time around.

Once we turned these servers over to our DBA’s to run their RMAN restores, we spent several hours completing additional requests for individual files to be restored which had been missed earlier on. When we would drill down to check that these files existed we always found that they were there.

For reference, all of our backup data resides on 2 Data Domain storage devices so it isn’t an issue with missing media.

Has anyone else seen anything like this ?

Thanks,

Mark Glazerman

Enterprise Storage Administrator

Spartech Corporation

Desk: 314-889-8282

Fax: 314-854-8282

Cell: 618-520-3401

mark.glazerman AT spartech DOT com

http://www.spartech.com

P please don't print this e-mail unless you really need to

This e-mail and any files transmitted with it are confidential, are intended solely for the use of the addressee, and may be legally privileged. If you have received this email in error please notify the sender immediately, and do not copy or forward it.

_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu