Change in Hardware

[Former Member]

Hi,

We are running on SAP R3 4.7 Ext Set2 with DB2 V9.1 DB on AIX 5.2 ML-08 with all the filesystems(SAP & DB2) created on SAN.We are planning to move this environment to a new Hardware Infrastructure which will be on AIX 5.3 TL-07.What is the best way to do this change over?

Regards,

Sam

[markus_doehr2]

Make a system copy using backup/restore:

http://service.sap.com/systemcopy

Markus

[Former Member]

Thanks Markus for the quick reply,since all the file systems are from the SAN,can we mount the filesystems on the new server and start the system(like the Failover scenario - HACMP)?

[markus_doehr2]

If you can present the LUNs on that new system - yes. Make sure you have the same configuration on the target system (/etc/hosts, /etc/services etc.) as on the source.

Markus

[Former Member]

Thanks Markus,This is what i was planning to do.Once we do the test we will come to know the issues if any.

Thanks for the quick replies.

Regards,

sam

[markus_doehr2]

You´re welcome

Markus

[Former Member]

Hi Markus,

We have simulated this scenario on a test system and it worked fine.I would like to get an opinion from you on a different option,ie if we take a image backup from the existing server and restore it to the new server ,upgrade the OS of the new server and then move the LUNS to the new server and start SAP.Is that advisable than moving the LUN to a newly Installed latest OS release ?

Regards,

Sam

[markus_doehr2]

We have simulated this scenario on a test system and it worked fine.I would like to get an opinion from you on a different option,ie if we take a image backup from the existing server and restore it to the new server ,upgrade the OS of the new server and then move the LUNS to the new server and start SAP.Is that advisable than moving the LUN to a newly Installed latest OS release ?

This would make things easier because you get your configuration with the LUN move and you don´t need to fiddle with manual changing things in /etc/hosts etc.

Markus