If a file has been migrated and all copies have been made and are
active, NetBackup should only backup the inode, not the actual blocks
of data. This is true of unchanged cached files also.
This might explain why you see less data backed up than you expect.
As for the difference between test backups and regular backups, the
only thing I can think of is that you're running user directed backups
(where you specify the file list and there is no concept of an
incrememntal).
Terese Pelletier writes:
> All,
>
> Please accept my apologies for submitting this to both lists, but it
> seems appropriate.
>
> Our experience and belief is that netbackup will back up all files on an
> vsm managed filesystem (cached, stub, regular) and that it's advantage
> is that it won't migrate in files during the backup process.
>
> We are seeing that our vsm filesystem backups to not have all the data
> we would expect. What is odd is that I have been running periodic test
> backups and everything appears to be backed up, but on our regular runs
> we appear to be short.
>
> We have been working with Sun Microsystems and Veritas on one filesystem
> which should back up 25gb, but only backs up 1.8gb. The answer we
> received is that we are stuck. The only way to back up the vsm
> filesystem is via nb, but nb is not getting all the data. We determined
> our only course of action is to go back to what we believe is a full
> back and try to recreate the filesystem on new disks.
>
> I'm wondering if anyone else has seen this issue?
>
> Thanks for all the help,
> Terese
> --
> Terese Pelletier |Internet: terese.pelletier AT kodak DOT com
>
> Eastman Kodak Company |Phone: 585-477-1316
> Room 6636, Bldg 69, KRL |Pager: 585-253-7239
> Rochester, NY 14650-1925 |Fax: 585-477-2983
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
--
Larry Kingery
Ethernet (n): a device used to catch the etherbunny
|
