Veritas-bu

[Veritas-bu] backups of NetApp Filer - NFS or 3-Way NDMP

2005-04-02 09:44:02
Subject: [Veritas-bu] backups of NetApp Filer - NFS or 3-Way NDMP
From: Algo Seeker <algorithm AT gmail DOT com> (Algo Seeker)
Date: Sat, 2 Apr 2005 09:44:02 -0500
Here is what I was thinking for NFS, create a snapshot on Netapp name
snapshot_for_backup. and then

mount netapp:/vol/vol0/.snapshot/snapshot_for_backup /netapp/vol0

and backup up the /netapp/vol0 over NFS. Obviously with all volumes
and multiplexing with huge buffers.


Thanks

On Apr 2, 2005 9:38 AM, Algo Seeker <algorithm AT gmail DOT com> wrote:
> Thanks for the answer, I am going to try the settings in bp.conf. Well
> speed of the tape drives was reason which made me think to use NFS and
> do multiplexing.
> 
> Now I will mounting volumes and we create snapshots on volumes, how
> does it effect me for qtrees?. I am assuming everything under snaphost
> will be backed up.
> 
> Thanks
> 
> On Apr 2, 2005 1:16 AM, Tim Berger <tim.berger AT gmail DOT com> wrote:
> > Since snapshots are read-only and netbackup always tries to reset file
> > access times, you'll need to put DO_NOT_RESET_FILE_ACCESS_TIME in
> > /usr/openv/netbackup/bp.conf
> >
> > That message should go away after this is changed.
> >
> > As far as which one is better, I think it depends on the
> > circumstances.  If you have several qtrees and filesystems, managing
> > the creation on destruction of snapshots can become tricky without
> > NDMP due to the lack of detail (like the path or qtree) provided to
> > bpstart_notify and bpend_notify.  With NDMP, a snapshot is
> > automatically created for each qtree that gets backed up.  For this
> > situation, I'd recommend NDMP.  A big downside with NDMP is that
> > multiplexing is not supported.  For this reason, it may be difficult
> > to keep today's high-speed tape drives streaming with NDMP.  You'll
> > need to determine this for yourself with your environment/hardware.
> >
> > Hope this helps.
> >
> > On Apr 1, 2005 9:03 PM, Algo Seeker <algorithm AT gmail DOT com> wrote:
> > > Which is faster and better 3-WAY NDMP or NFS.  I was also trying to
> > > mount the snapshot and back it up over NFS. Netbackup is throwing
> > > errors WRN: Cannot reset permissions for?
> > >
> > > Any help/ideas?
> > >
> > > Thanks
> > > _______________________________________________
> > > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> > >
> >
> > --
> > -Tim
> >
>

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