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>>--> 05-22-02  09:06  S.SHEPPARD     (SHS)    Re: yes/no tape question
>>--> 05-22-02  09:06  S.SHEPPARD     (SHS)    Re: yes/no tape question

The situation you describe is easily handled by correctly managing the
hardware and software definitions in OS/390 HCD.  Drives which are
defined on the hardware side but are not in service yet should not be
defined to the software side until they are ready for use, at which time
they can easily be added on the fly.  This prevents the problems you
describe with offline devices (reply Device name, Wait, or Cancel).

Sam Sheppard
San Diego Data Processing Corp.
(858)-581-9668
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>>--> 05-22-02  08:59  ..NETMAIL     ()     Re: yes/no tape question
>>--> 05-22-02  08:59  ..NETMAIL     ()     Re: yes/no tape question
Date: Wed, 22 May 2002 11:56:36 -0400
From: "Bill Boyer" <bill.boyer AT VERIZON DOT NET>
Subject: Re: yes/no tape question for os/390 server people
To: ADSM-L AT VM.MARIST DOT EDU
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>
>Not only the mountlimit for the deviceclass, but how many tape drives are
>online versus how many are actually gen'd in the system via HCD. You may
>have a string of 8-3590's gen'd, but currently only have 4 physically hooked
>up. As far as MVS allocation is aware, these are devices that are just
>offline. If TSM needs a tape drive, and there aren't any available, but
>there are offline devices you end up with dynamic allocation messages from
>TSM (can't remember the ANR* message) and/or the more familar REply Device
>name, Wait, or Cancel message to the operator console. Message automation
>can take care of some of this, but cancelling a request for a tape drive to
>TSM can fail a backup or process. This is probably the thing I hate the most
>about TSM on OS/390...you can't tell TSM EXACTLY how many drives are
>available. All allocation goes through OS/390.
>
>Bill Boyer
>DSS, Inc.
>
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