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Upgradation of OS without performing Homogeneous system copy.
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on 09-10-2009 12:44 PM
Dear All,
We are using SAP 4.7 Ext2 in Solaris 9 OS. My client is planning to upgrade Solaris 10 from existing Solaris 09. I suggested to perform a homogeneous system copy. But the client does not want to go for it. His proposed strategy is to upgrade Solaris 9 to Solaris 10 keeping the SAP file system intact. Is it feasible to upgrade the OS like this without performing a homogeneous system copy? If it is possible then what are the precautions have to be taken and what OS level configurations have to be chenged after the upgradation. Kindly acknoweledge me about it as I am naive to this.
Thanks in advance,
Tapan
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Surely this can be done without doing a system copy. This is very normal scenario and I personally have experienced this many times.
Its basically a very straight forward upgrade.
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Absolutely can be done
Just need to make sure you have all the sapdatas unmounted and after the OS upgrade remount them back.
OS upgrade should not touch the sapdatas unless you are changing the file system type itself
Pravin
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> We are using SAP 4.7 Ext2 in Solaris 9 OS. My client is planning to upgrade Solaris 10 from existing Solaris 09. I suggested to perform a homogeneous system copy. But the client does not want to go for it. His proposed strategy is to upgrade Solaris 9 to Solaris 10 keeping the SAP file system intact. Is it feasible to upgrade the OS like this without performing a homogeneous system copy? If it is possible then what are the precautions have to be taken and what OS level configurations have to be chenged after the upgradation. Kindly acknoweledge me about it as I am naive to this.
This is possible; you can do either a "normal upgrade" (by inserting the Solaris 10 DVD and do the upgrade) or you can do a LiveUpgrade that can be done during uptime of the system. The switch to the new OS is then done by rebooting the machine.
All that is well documented at http://docs.sun.com
Markus
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