RE: Netapp snapshot backups for RAC
- From: "Matthew Zito" <mzito@xxxxxxxxxxx>
- To: <nupendra@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 24 Nov 2009 10:59:45 -0500
It works great. Put the database in hotbackup mode, take a snapshot, back up
the snapshot. Couple of notes, though:
- Remember that the way NetApp snapshots work, any I/Os to the snapshots go
against the same physical disks. Normally not an issue, but if you're already
heavily utilized on those disks, you can get performance problems.
- If you want a more elegant/automated way of doing these backups, there's
SnapManager for Oracle. Additional cost option, but it saves the
scripting/integration headaches you deal with when doing things by hand
- Since you're using ASM, make sure to not expose the snapshotted LUNs to the
original server, since they'll have the same disk labels and headers
- Also, you can use snapshots to make backups of your OCR device as well, prior
to attempting to add a resource, or reconfigure your cluster
- Any reason you're not using NFS/DNFS for your database? It simplifies a lot
of the things above
Thanks,
Matt
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx on behalf of Upendra N
Sent: Tue 11/24/2009 10:45 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: Netapp snapshot backups for RAC
Hello all,
Currently doing a RMAN bi-weekly backups to disk. Database is running ASM on
Netapp storage.
I am considering netapp snapshot backups for Oracle RAC to reduce the Oracle
overhead.
Have anyone used it on a critical production database? What are your thoughts?
Have you seen any issues with it?
Thanks in advance
-Upendra
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