Timothy Sipples wrote:
<snip>
The z14 ZR1 does not support ESA/390 IPLs, so please check your inventory
of IPL'able items such as DFSMS recovery utilities, z/VM installation DVDs,
ZZSA, and old Linux distributions, as applicable, to make sure they're
modern enough. There's one available workaround for z/VSE 4.x: running
z/VSE 4.x under z/VM. And it's an unsupported but "as-is/known to work"
workaround. Otherwise, you've got to be "64-bit clean" from IPL. You don't
want to find yourself in a DR situation and unable to IPL some critical
tool associated with the recovery process.
<snip>
Timothy raises an important point here. From a z/OS point of view, use
the z14 FIXCATs to be sure all the PTFs are on. Then, there are the
four IPLable things to worry about when any of your systems (including
backup and DR systems) are upgraded to any model z14:
- z/OS itself
- Standalone Dump
- Standalone ICKDSF (easier to forget this one)
- Standalone DFSMSdss (likewise)
(All this is covered in the z/OS Migration book, of course.) If you
have fallen back and cannot meet the driving system requirements for
z/OS installation, and order a Customized Offerings Driver, its level of
z/OS does have the needed support for the z14 models.
I believe z/VM's list is similar:
- z/VM
- z/VM Standalone Dump
- Standalone DDR
- ICKDSF (yup, the same one)
--
John Eells
IBM Poughkeepsie
ee...@us.ibm.com
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