z/VSE: Are you planning to upgrade to a new System z processor ?
Ingolf24 120000DRN3 Visits (1971)
This blog entries briefly gives a few tips, that might be useful, if you plan to upgrade to a new processor, such as
the IBM System z10, the IBM zEnterprise 114 (z114) or the IBM zEnterprise EC12.
As you know from earlier posts I recommend to migrate to the latest z/VSE release - z/VSE 5.1- to get full support of the new processors. z/VSE 4.3 supports all above processors too.
If you are already on z/VSE 5.1, you just need to verify, if you have required PTFs applied - see PSP bucket for the target processor.
In general please do not change the software level and processor at the same time.
What is first - software or processor migration - depends on your current processor. If you are already on an IBM System z9 processor or higher, you may migrate to z/VSE 5.1 first and to the new processor later.
... but it's your choice.
If you are on an IBM System z processor before z9 you need to migrate to the new processor first, because z/VSE 5.1 requires a z9 processor or higher.
If you are migrating an unsupported VSE release to a new processor, ensure that you are on the latest PTF level.
Please contact me, if you are running on a VSE/ESA 2.5 or earlier.
Now a few tips:
Read the PSP information for the processor, e.g. for z114
Apply PTFs recommended for the new processor before you migrate to it.
Check with your vendors, if they have a processor dependency.
It might be necessary to install a supported z/VSE release to configure the OSA Express3 cards.
You might need to apply an OSA/SF PTF.
Do you use supcapacity pricing (CMT, SCRT) ? Check for updates. Backup your CMT data.