Matthias, I asked for, and obtained, this information about server priorities
(via PMR0970X in September 1995) when I first started with ADSM:
" Retrieve, Export, Import, DBBackup, and DumpDB can preempt mount
points from other functions and cannot be preempted themselves.
Audit and Restore will not preempt nor will be preempted either.
Other functions can be preempted. "
It doesn't tell the whole story but this is all I have ...
It would be very nice if there were options available to dynamically
configure devices for tasks - i.e. to say restores/retrieves on 1 stream;
recalls on 1 stream; 1 stream for restore volume; 1 stream for move data
or whatever the priorities were at the time.
The facilities on offer today are somewhat primitive - I agree that disabling
the server is not a satisfactory solution, but that's your only option right
now! Commiserations.
Best wishes, Sheelagh
------------------------------------------------------------------------------
Sheelagh Treweek Email: sheelagh.treweek AT oucs.ox.ac
DOT uk
Sheelagh Treweek Email: sheelagh.treweek AT oucs.ox.ac
DOT uk
Oxford University Computing Services Tel: +44 (0)1865 273205
13 Banbury Road, Oxford, OX2 6NN, UK Fax: +44 (0)1865 273275
------------------------------------------------------------------------------
> From owner-adsm-l AT VM.MARIST DOT EDU Wed Jul 9 17:23:18 1997
> From owner-adsm-l AT VM.MARIST DOT EDU Wed Jul 9 17:23:18 1997
> Resent-Date: Wed, 09 Jul 1997 17:23:12 +0100
> Resent-From: sheelagh <sheelagh.treweek AT computing-services.oxford.ac DOT
> uk>
> Resent-To: SHEELAGH <SHEELAGH AT SAGE.oucs.ox.ac DOT uk>
> Date: Wed, 9 Jul 1997 17:54:10 +0100
> From: Matthias Feyerabend <M.Feyerabend AT GSI DOT DE>
> Subject: ADSM priorities
> To: ADSM-L AT VM.MARIST DOT EDU
> Resent-Message-Id: <E0wlzWQ-0003Ym-00 AT sage.oucs.ox.ac DOT uk>
>
> Hello,
>
> I am getting annoyed by messages like
>
> ANR1440I All drives in use. Process 143 being preempted
> by higher priority operation.
>
> I need to move data from a IBM3590 cartridge with media problems
> and my process gets canceled because retrieve requests have
> obviously higher priority.
>
> My two questions to the list are:
>
> 1. What are the priorities of the different ADSM operations
> (like retrieve, reclaim, move data, etc.) ?
>
> 2. What can I do to prevent canceling my operation ?
>
> Answers like "increase the number of drives available"
> (See explanation of MSG ANR1440I) are not welcome, I have
> to live with the amount of drives (four) and the mountlimit
> is set to this maximum.
> The other answer I am not content with
> is "Disable access to server", because that gives me pain
> from users.
>
> Regards
>
> Matthias Feyerabend
>
>
>
> ------------------------------------------------------------
> Matthias Feyerabend phone: (49) 6159 71-2519
> GSI, Darmstadt internet: M.Feyerabend AT gsi DOT de
>
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