AIX OS upgrade from 5.3 to 6.1 TL5 ( 18588 / 2011 )

[Former Member]

Hi

We are planning to ugrade our existing OS from 5.3 to 6.1. We have the following approach for this activity.

1) Take a backup and upgrade the existing OS to AIX 6.1 for all development and Quality environment.

2) For Production , copy the existing SAP System(ECC6 ehp4 and CRM 7 upgraded) to new Hardware with AIX 5.3 and then upgrade the OS to AIX 6.1.

We have ugraded the ECC6 to ehp4 and CRM 5 to CRM 7 recently (October 2010), kindly suggeset the best approach for the above mentioned activity .

Regards

Prasanna.B.S

[former_member227281]

Hi,

The approach is fine and slighly modify the approach as follows

1) Take a backup and upgrade the existing OS to AIX 6.1 for all development and Quality environment.

Test Start and stop database instance.

Then test start and stop SAP instances. If you get the short dump, then apply latest sap kernel patch.

2) For Production , Stop all instances including database and CI instances, also stop clustering services if configured and then copy the existing SAP System(ECC6 ehp4 and CRM 7 upgraded) to new Hardware with AIX 5.3 and then upgrade the OS to AIX 6.1.

AFter upgrade complete, then

Test Start and stop database instance.

Then test start and stop SAP instances. If you get the short dump, then apply latest sap kernel patch

Thanks and Regards

-apr

[Former Member]

I would take into account following:

DR test

Kernel/DB Version/JDK (http://service.sap.com/pam)

SLD location and availability

if possible plan on sandbox or one of the server instead of all DEV/QA servers

[former_member189546]

Hello,

OK to just upgrade the OS as long as the kernel works on 6.1

which it does, update kernel first.

No need to do backup apart from backing up the DB

1137862 Using SAP systems with AIX 6.1

regards,

John Feely