Thomas,

>My coworkers are still skeptical about the idea that the TSM server
>uses Unix System Services. Does anyone know for sure whether it does
>or not?

We are at os390 2.10
TSM definitely uses unix system services. I had a pmr at TSM 4.2.2 concerning
inability to restore backupsets made under daylight saving time during GMT and
vice versa.
It turned out that because we not setting the TZ (time zone) environment
variable in the TSM
started task, TSM was picking up the the default value from unix system services
eg.
the specification in your USS environment /etc/profile ((see Unix System
Services User's
Guide, section 4.9)  In our case this default value was not allowing for the
clock change.
Hope this helps
John




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