Hi Matt, My intention is to reduce the use of Oracle resources, I understand the io limitations. I will investigate SnapManager. Thanks for cautioning on exposing the snapshotted LUNS on the same host. This environment is currently running Oracle 10.2, I didn't think DNFS existed in 10g? I know it is available in 11g. If you have seen DNFS in action, could you share some of your experiences? Thanks again -Upendra > Subject: RE: Netapp snapshot backups for RAC > Date: Tue, 24 Nov 2009 10:59:45 -0500 > From: mzito@xxxxxxxxxxx > To: nupendra@xxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx > > > 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 > > > > ________________________________ > > Windows 7: I wanted simpler, now it's simpler. I'm a rock star. > <http://www.microsoft.com/Windows/windows-7/default.aspx?h=myidea?ocid=PID24727::T:WLMTAGL:ON:WL:en-US:WWL_WIN_myidea:112009> > _________________________________________________________________ Windows 7: It works the way you want. Learn more. http://www.microsoft.com/Windows/windows-7/default.aspx?ocid=PID24727::T:WLMTAGL:ON:WL:en-US:WWL_WIN_evergreen:112009v2