On Sat, 7 Mar 2026 16:20:23 -0600, Steve Estle <[email protected]> wrote:
>All,
>
>I have (inherited) a ZOS environment with many duplicate volsers spread across
>two LPAR's: Prod & Test. Right now Test LPAR is down and we are needing to
>restart / ReIPL the Test LPAR but getting many duplicate volsers during IPL
>process. I'm looking for tool / utility that I can use / run from Production
>LPAR that will list out all duplicate volsers and related unit addresses
>within the defined DASD environment - of course this means the utility needs
>to interrogate all configured DASD volumes whether online or not.
>
>Anything out there? - I tried ISMF and don't see a way to do thru the ISPF
>interface but possibly a trick or two with ISMF I'm not aware of?
>
>Anyways open to any / all ideas - have to believe there is a way. Possibly
>CBT?
>
Steve,
Do you have an old SVC Dump from the TEST LPAR that you can get to
from the PROD LPAR? If so, you could use IPCS and the LISTUCB subcommand to
display the UCB and VOLSER from your TEST LPAR. Then do the same process on the
PROD LPAR. You will then need to capture the output from the LISTUCB subcommand
and process it and strip out the UCB and VOLSER and identify the duplicate
volsers that way.
If you don't have an old SVC Dump from the TEST LPAR, then you could try and
IPL the TEST LPAR and then take a SAD of the TEST LPAR and do the same process
as above but not sure if when you IPL the TEST LPAR and then get the very first
message about duplicate volser (which one to use) will list ALL duplicate
volsers (I suspect not) and you will then have to go thru replying to each one
which effectively means you have the TEST system up at a stage where you will
know what all the duplicate volsers are anyway.
Roger
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