Re: OS upgrade for RAC

From: Riyaj Shamsudeen <>
Date: Wed, 3 Jun 2015 12:25:15 -0700
Message-ID: <>

Hello Amir,
  (c) Why would the dNFS version differ? IIRC, dNFS is completely an Oracle implementation over network calls. So, dNFS code shouldn't differ just because the OS version jumped a notch, I think. However, kNFS client version might differ a bit, which *might* be a problem if you access through kNFS such as File system based backups.

  Either way, the risk is lower with dNFS for your specific question.

  So, I don't foresee any technical issues of running the nodes with slightly different OS version for a short period of time. However, I may be concerned with running in that configuration for a prolonged period of time, following a cautious approach[ fear of unknown issues?]. Of course, if you can test the process in a non-prod environment, you can completely eliminate the risk of unknown :)


Riyaj Shamsudeen
Principal DBA,
Ora!nternals - - Specialists in Performance, RAC and EBS
Blog: Oracle ACE Director and OakTable member <>

Co-author of the books: Expert Oracle Practices
<>, Pro Oracle SQL,
<> <>Expert RAC
Practices 12c. <> Expert PL/SQL practices

Received on Wed Jun 03 2015 - 21:25:15 CEST

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