W dniu 23.11.2023 o 22:32, Jon Perryman pisze:
On Thu, 23 Nov 2023 19:47:24 +0000, Keith Gooding <kw...@yahoo.co.uk> wrote:
I certainly would like the option to tell dss to recall datasets
I feel your pain but I personally agree with IBM's decision. Realize this is
z/OS with specialists instead UNIX with its jack of all trades. DASD sysprog,
performance sysprog, scheduler and more should be involved in how this should
occur because they have access to important knowledge, For instance, the DASD
sysprog can tell you the importance of using HRECALL instead of ADRDSSU doing
the recall. Very simply, HRECALL can group recalls by recall volume with fewer
tape mounts and they can easily cancel the request if people are being
impacted. The scheduler can schedule this non-time sensitive work when it won't
impact others.
Well, Keith metioned *a switch*. You don't like tape mounting? No
problem, just don't use that feature.
However I remember a lot of scenarios where there was a need to copy
*all* dataset belonging to the mask/list, not jut those not migrated.
And of course my current issue is yet another one.
BTW: I don't care about mounting tapes. My virtual drives are certified
for millions of mounts. Not to mention ML1. :-)
Trivia: the last real tape drive for z/OS was released in May of 2011
and end of service was 28th Feb 2022. No further (directly attached)
models for 12 years. And most virtual tape vendors do not offer any tape
at backed. IBM, Fujitsu and one other (can't remember now) are exceptions.
--
Radoslaw Skorupka
Lodz, Poland
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