Originally posted by: shiv tiwari

Can anybody shed light on the best way to migrate a p5 AIX 5.3 server
to a p7 AIX 5.3 server?

shiv

Originally posted by: bleuet101

Well, since you don't provide a lot of details... The rootvg can be backup and restore from the Power5 to the Power7 using a mksysb.
The other VGs can backup and restore with a tar or TSM.

I would say that the easiest way would be to have all your disk on SAN and just swing the disk from one system to the other.

Originally posted by: unixgrl

I would say the "best" way is to build a new LPAR running AIX 6.1 or 7.1 (believe 5.3 is unsupported on P7), reinstall your apps, test as much as you can and swing over any storage you can.

You could attempt a mksysb restore but since 5.3 is EOL and not supposed to run on a P7 I'd suggest you do things right the first time and get a shiny new LPAR running the latest versions of everything.

You could also look at WPAR functionality. I haven't kept up with the latest improvements but I think there is a way to run 5.3 inside a WPAR running AIX 6 or 7.

We're doing a lot of migrations to P7 at my company. You should consider more than just the AIX version. I would suspect that many other parts of your system standards have changed since the 5.3 systems were installed. Moving the LPAR w/o upgrading the other pieces is like putting a Yugo engine into a Porsche!

Originally posted by: SystemAdmin

Power 7 supports AIX 5.3 TL11 & above.

Originally posted by: SystemAdmin

Shiv,

For the migration approach or process, take a look at my post on the following link.

http://unix.ittoolbox.com/groups/technical-functional/ibm-aix-l/lpar-migration-4376586
Kannan

Originally posted by: SystemAdmin

You may try using NIM, you can clone the LPAR using NIM and restore it to new P7 box via nim_bosinst. Using NIM you can mksysb and restore using Network. Have migrated several LPARS using NIM and it really a big help.

Regards