| Multiple versions of Linux for one RAC database. [message #194296] |
Thu, 21 September 2006 07:38  |
cajohn
Messages: 10
Registered: July 2006
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Junior Member |
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I currently have a 4 Node 9i RAC setup on Linux AS2.1, but would like to upgrade to AS4. One of my nodes is having a well known problem with the SCSI card. The fix I found was to upgrade to AS3 or later. I would like to go to 4 with this one system and then gradually do the others when I have time, but I am not sure it this is possible. Can I have one server running AS4 while the others are still on AS2.1? If I can do this it will make my upgrading a lot easier as I can do one system at a time and have no down time.
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| Re: Multiple versions of Linux for one RAC database. [message #196557 is a reply to message #194296] |
Thu, 05 October 2006 21:58  |
SameerZai
Messages: 3
Registered: October 2006
Location: Los Angeles
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Junior Member |
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Theoritically, RAC is supposed to be a SMTP setup.
However, i have seen that our Staging ran completely fine when we unkowingly had 3 nodes actually running on different patch levels -- didn't even noticed anything.
Also, Oracle is widely promoting the concept of Rolling upgrades with RAC, which means you can upgrade one node at a time without actually bringing down the whole cluster.
-Sameer Zai.
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