Expert: Pete Mayhew - 12/3/2008

Question
What are the disk drive requirements to upgrade to this version or higher?

Answer
Version 5.4 requires a 17gig load source drive (or higher). This drive can be part of a parity set and have a 'parity stripe' on the drive.

Starting with V6R1, the load source drive must be a 'full capacity' 17gig drive-if it is part of a parity set, it cannot have the parity striping on the drive. You can easily tell this by looking at the model designation in service tools. '70' indicates part of a parity set, but full capacity. '72', '74', and '78' indicate part of a parity set, but reduced capacity due to the 'parity stripe'.

In addition to the disk size requirement, there is a LIC space extension utility which must be run before doing the upgrade. It is documented in the Software Installation manual and also on the Upgrade preparation section of Licensed Programs.

Pete