RE: Backing up RAC server filesystems

  • From: Herring Dave - dherri <Dave.Herring@xxxxxxxxxx>
  • To: "Jed_Walker@xxxxxxxxxxxxxxxxx" <Jed_Walker@xxxxxxxxxxxxxxxxx>, "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 2 May 2012 18:57:36 +0000

Jed,

You didn't mention the Oracle version but regardless, think of all that you'd 
potentially lose if $ORACLE_HOME and/or $CRS_HOME are completely lost.  You'd 
have no ability to review all the various Oracle logfiles to determine why the 
crash happened (in case it caused the disk loss).  You'd lose all configuration 
settings - base releases, what patches you applied, TNS *.ora files, local 
scripts, local monitoring, etc.  Granted, you could clone all this from other 
node(s) in the cluster, assuming they didn't have a similar issue, but it seems 
like a huge potential issue.  

DAVID HERRING
DBA
Acxiom Corporation
EML   dave.herring@xxxxxxxxxx
TEL    630.944.4762
MBL   630.430.5988 
1501 Opus Pl, Downers Grove, IL 60515, USA
WWW.ACXIOM.COM  

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of Walker, Jed S
Sent: Monday, April 30, 2012 4:24 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Backing up RAC server filesystems

I am trying to get offline backups configured for my RAC server nodes. I was 
planning on having all local filesystems backed up, but the offline backup team 
says they don't backup the OS by default because it can be re-installed. My 
hope is that in the event the local disk on the server goes out it could be 
replaced and a restore done and the node restarted. Given that RAC modifies a 
lot on the OS I'm not sure this would work at all if all that was backed up was 
/oracle.
Is this a good strategy (backing up all filesystems)?
Am I better to rebuild the node, do a deletenode and then addnode?
Other thoughts?

Thanks,

- Jed


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