RE: RAC upgrade from RedHat v5 to v6
- From: D'Hooge Freek <Freek.DHooge@xxxxxxxxx>
- To: "dmorse2@xxxxxxxxx" <dmorse2@xxxxxxxxx>, Oracle List <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 23 Nov 2012 12:42:01 +0100
Don,
But does a reinstall really means that you would wipe your entire server?
I'm no linux admin, but I thought that if you had separate filesystems for the
OS (/ , /boot,..) and for Oracle (/u00, /u01,...) the content of the latter
ones could be preserved during a reinstall.
Separate from a relink you would possibly also need to recreate some additional
directories and symbolic links and change the contents of /etc/inittab and so
on.
Another possible scenario would be to perform a dropnode procedure, then
reinstall the server, followed by an addnode procedure.
This way a rolling upgrade is certainly possible.
Regards,
Freek D'Hooge
Uptime
Oracle Database Administrator
email: freek.dhooge@xxxxxxxxx
tel +32(0)3 451 23 82
http://www.uptime.be
disclaimer: www.uptime.be/disclaimer
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Don Morse
Sent: vrijdag 23 november 2012 0:14
To: Oracle List
Subject: RAC upgrade from RedHat v5 to v6
To List: Has anyone done a Redhat v5 to v6 upgrade on an a RAC cluster? Our
UNIX admin tells me that the upgrade is a re-install of Linux.
Oracle Support has stated this: Oracle RAC supports rolling upgrade of the OS
which indicates you can upgrade OS of one node keeping other nodes up and after
completing the upgrade of OS on first node, relink oracle clusterware and RDBMS
binaries then bring up clusterware and database on that node and then upgrade
second node keeping the first and third node up. This is supported only during
OS upgrade. It is not supported to run clusterware with different version of OS
on each node for a long time. The support is only for the time it takes to
upgrade your OS".
If our Linux admin is correct (RH 6 is a re-install), then the rolling upgrade
recommended by Oracle is impossible? Or do I dare to challenge him on this?
Thanks,
Don Morse
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