ADSM-L

Re: tape library management

1974-01-13 10:11:14
Subject: Re: tape library management
From: Pat Wilson <paw AT NORTHSTAR.DARTMOUTH DOT EDU>
Date: Wed, 23 Jun 1999 15:30:14 +22300919
Ooo, ick.  ADSM just does *not* deal well with drive failures,
does it?  I've spent all day today trying to recover from one of
my two drives eating a bad tape...

Thanks for the warning, though.

--paw
>  I, too, would advise caution if/when you ultimately pursue this.
>  I, too, would advise caution if/when you ultimately pursue this.
>  We were faced with the same issue when our 3494 rapidly filled
>  up. Management balked at an additional frame so we began to
>  remove tapes. It was somewhat more confusing b/c we had two ADSM
>  servers sharing the 3494, and when we had a tape drive go bad
>  (the part that reads the cartridge type failed) which rejected
>  incoming tapes, in the resulting confusion tapes with data from
>  one server were checked into the library as scratch tapes for the
>  other server. BAD JUJU!
>
>  Having said that, we are now successfully storing tapes in and
>  outside of the library. You'll have to work out the best method
>  to choose candidates for outside storage. The last thing you want
>  to do is spend half your day making trips to the data center to
>  insert tapes into your "automated" tape library.
>
>   -- Tom
>
>  Thomas A. La Porte
>  DreamWorks Feature Animation
>  tlaporte AT anim.dreamworks DOT com
>
>  On Tue, 22 Jun 1999, James SPORER wrote:
>
>  >     Pat,
>  >     I suggest you test this to make sure you won't have any problems.  We
>  >     are running an mvs adsm server and thought this would be a good idea
>  >     since we were running out of slots in our atl.  We ejected tapes that
>  >     hadn't been mounted recently.  We thought we would get prompted to put
>  >     the tapes back in the atl if adsm wanted to use them.  I don't
>  >     remember exactly what happened but we never got a prompt to put the
>  >     tapes back in the atl. I reported the problem to IBM and was told that
>  >     was the only way they could do it.  When I pointed out that dfhsm
>  >     prompted us to put tapes back in the atl they said they would look
>  >     into it.  In the meantime we got another frame for our atl and didn't
>  >     pursue a resolution.
>  >     Jim Sporer
>  >     UW madison
>  >
>  >
>  >
>  >______________________________ Reply Separator ____________________________
_____
>  >Subject: tape library management
>  >Author:  "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>  at IPNET
>  >Date:    6/22/99 9:38 AM
>  >
>  >
>  >I've finally reached the point where my on-site tapes won't all fit in the
>  >tape library, so I'm going to have to start shuffling the older ones out.
>  >I'm already running DRM for the copypool and dbbackup tapes...  Any hints o
r
>  >handy scripts?
>  >
>  >Thanks.
>  >
>  >Pat Wilson
>  >paw AT dartmouth DOT edu
>  >
<Prev in Thread] Current Thread [Next in Thread>