Upgrade 15.5 to 15.7

Hello guys,

CT is upgrading Sybase ASE 15.5 ESD 3 to 15.7 SP132.

Upgrade process is pretty clear, check,backup,install. But.

Does anybody have step by step guide to upgrade he uses?

With all the checks, what to backup for sure, what to disable (auditing, pci,web services ?)

What are post upgrade tasks? your best scenarios.

I would appreciate if anybody could provide such guide.

Thank you.

Marian