Re: [Veritas-bu] Restoring from Multiplexed Backup

Even if it’s restoring all the filesystems simultaneously, you’ll only see one job if you only kick off one restore. I suggest you use my for loop example, as it’s very easy to type and you don’t have to worry about the restore delay, as they’ll all be issued within a second of each other.

Also, another reason why I always did my multi-filesystem restores in a loop was that when one of them failed, you knew which one and you could just fix and rerun that one. Doing them all in the same job makes reporting a bit muddled.

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From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Jeremy Finn
Sent: Friday, August 01, 2008 9:19 AM
To: Justin Piszcz
Cc: smpt; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Restoring from Multiplexed Backup

Thank you all for your inputs!

I am restoring using the bp restore command. All the mount points are selected for the one restore job.

./bprestore -C client -D source -f /tmp/restorefiles -R /tmp/rename -l -L /var/tmp/restore.out

The policy is configured to multiplex five streams to one tape drive. There is only one client in the policy.

The file list looks like:

/mount/point/1
/mount/point/2
/mount/point/3
/mount/point/4
/mount/point/6
/mount/point/6
.... and so on

NBU version is 6.0 MP4.

When I do the restore I am expecting to see all streams as separate jobs in the activity monitor. Sounds like I may need to use separate bprestore commands for each mount point? Hopefully this will not cause additional mounts/unmounts...

Thanks again,
Jeremy

On Fri, Aug 1, 2008 at 10:04 AM, Justin Piszcz <jpiszcz AT lucidpixels DOT com> wrote:

On Fri, 1 Aug 2008, smpt wrote:

Do you select all mount points at the same restore? If yes, then you will
see only one job, but netbackup will restore all files in one tape pass.

Good questions, forgot to ask them :)

If you start 5 restores the you have to be fast (every restore must start
within 30 sec, by default). This can be changed from master server
properties.

MPX_RESTORE_DELAY = 30

Yup, change it in bp.conf.

stefanos

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Jeremy Finn
Sent: Friday, August 01, 2008 3:26 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Restoring from Multiplexed Backup

Hello,

I have a standard backup policy configured to stream five mount points to
one tape drive. This is working fine.

When I do the restore, I only see one stream restoring at a time. Is it
possible to restore the five streams of data from the multiplexed tape at
the same time?

Other backup softwarescan do this so I assume Netbackup can as well... if
some could please point me in the right direction it would be much
appreciated.

My environment looks like this:

Master: Solaris 10 on SPARC
Media Server: HP-UX on PA-RISC
Source Client: HP-UX on PA-RISC
Target Client: HP-UX on PA-RISC
Multistream = 5
Multiplex = 5
One LTO-1 tape drive

Thank you in advance for any insights.

Jeremy

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