ADSM-L

Re: Re[2]: Copy Tapes

1998-04-23 10:24:06
Subject: Re: Re[2]: Copy Tapes
From: Hilton Tina <HiltonT AT TCE DOT COM>
Date: Thu, 23 Apr 1998 09:24:06 -0500
Isn't it generally recommended that the reclamation threshhold be 50% or
higher to achieve optimum tape utilization?  I think you might have more
partially used tapes in your copy pool by setting it to 40%.  Please
correct me if I'm wrong.

Tina Hilton
Thomson Consumer Electronics

> -----Original Message-----
> From: Janie Pendergraft [SMTP:jpenderg AT STJ DOT COM]
> Sent: Thursday, April 23, 1998 8:21 AM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: Re[2]: Copy Tapes
>
> Wanda & Kelly,
> I will try to use the reclaim process today. It is set to 40%.  Our
> primary
> tape reclamation is also set to 40% but we have been using the move
> data
> process to reclaim our primary tapes when we need scratch tapes. This
> may
> be the wrong way to do it? Like I said earlier we are new to this and
> still
> in the process of learning and ADSM appears to be a good product but
> far
> different from any other backup we have used in the past.
>
> ----------
> From:   Prather, Wanda[SMTP:PrathW1 AT CENTRAL.SSD.JHUAPL DOT EDU]
> Reply To:       ADSM: Dist Stor Manager
> Sent:   Wednesday, April 22, 1998 3:53 PM
> To:     ADSM-L AT VM.MARIST DOT EDU
> Subject:        Re: Re[2]: Copy Tapes
>
> Janie, tapes should reclaim just fine for your copy storage pools.
> You just can't do it with MOVE DATA, it should happen automatically
> with
> the
> RECLAIM process
>
> If your copy storage pool tapes are still on site, when a tapes hits
> the
> reclaim threshold, ADSM will start mounting the tapes automatically
> and
> doing a reclaim.  Once all the data has been copied to a new tape, the
> reclaimed tape will be returned to scratch.
>
> If your copy storage pools tapes are offsite, when a tape hits the
> reclaim
> threshold, ADSM will mount the appropriate tapes from the PRIMARY pool
> and
> start to rebuild the data onto a new copy pool tape.  And the offsite
> tape
> being reclaimed will go back to scratch.
>
> Something else is wrong if you have a copy pool set up, but no
> reclaims are
> happening.
>
> 1) are your PRIMARY tapes being recliamed OK?
>
> 2) What is the RECLAIM threshold for your copy storage pool?
> (To find out, display the PROPERTIES for the copy storage pool.  Or if
> you
> prefere the command line, enter the command:  q stgpool  POOLNAME f=d
>
> ===============================================================
> Wanda Prather
> Johns Hopkins Applied Physics Lab
> 443-778-8769
> wanda_prather AT jhuapl DOT edu
>
> "Intelligence has much less practical application than you'd think."
>               - Scott Adams/Dilbert
> ===============================================================
>
>
>
> > ----------
> > From:         Janie Pendergraft[SMTP:jpenderg AT stj DOT com]
> > Sent:         Wednesday, April 22, 1998 4:12 PM
> > To:   ADSM-L AT vm.marist DOT edu
> > Subject:      Re: Re[2]: Copy Tapes
> >
> > That is what I have finally figured out. I guess we will just leave
> the
> > tapes as they are just in case for some reason there may be some
> > information on them that we need. We will just order new tapes. I
> would
> > just discard the data and scratch the tapes but I really don't want
> to
> > take
> > the chance there may be something on them we might need. Thanks
> anyway.
> >
> > Janie Pendergraft
> > St. John's Regional Medical Center
> >
> >
> >
> > ----------
> > From:   James SPORER[SMTP:james.sporer AT CCMAIL.ADP.WISC DOT EDU]
> > Reply To:       ADSM: Dist Stor Manager
> > Sent:   Wednesday, April 22, 1998 2:40 PM
> > To:     ADSM-L AT VM.MARIST DOT EDU
> > Subject:        Re[2]: Copy Tapes
> >
> >      I don't think you can do that.  The data already exists in the
> > primary
> >      storage pool.  If you want to copy the tape you must copy it to
> a
> > copy
> >      storage pool.
> >
> >
> >
> > ______________________________ Reply Separator
> > _________________________________
> > Subject: Re: Copy Tapes
> > Author:  "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>  at IPNET
> > Date:    4/22/98 11:34 AM
> >
> >
> > Kelly,
> > We used the Gui interface on an ADSM NT Sever ver 2.1.06 with the
> move
> > data
> > option. We were trying to move the data from the copy tape to a
> storage
> > pool called backup_disk. We thought this would reclaim the tape to
> scratch
> > status. The error we keep getting is:
> > ANS8001 Moving data from selected volume cannot be completed due to
> the
> > following error
> > ANS51021 Return Code 21
> >
> > We are still trying to research the error message and figure out why
> we
> > cannot reclaim the tapes.
> > ----------
> > From:   Kelly J. Lipp[SMTP:lipp AT STORSOL DOT COM]
> > Reply To:       lipp AT storsol DOT com
> > Sent:   Tuesday, April 21, 1998 5:25 PM
> > To:     ADSM-L AT VM.MARIST DOT EDU
> > Subject:        Re: Copy Tapes
> >
> > You can reclaim copy storage pool volumes.  Are you getting an error
> when
> > set the reclaim threshold on the pool?
> >
> > Good job on having a copy storage pool in the first place.  Lots of
> folks
> > don't create one early and then have real problems later.
> >
> > Kelly Lipp
> >
> > -----Original Message-----
> > From:   Janie Pendergraft [SMTP:jpenderg AT STJ DOT COM]
> > Sent:   Tuesday, April 21, 1998 3:53 PM
> > To:     ADSM-L AT VM.MARIST DOT EDU
> > Subject:        Copy Tapes
> >
> > When we first set up our ADSM server we had a consultant come in and
> help
> > us. We had a tape drive set up for copy tapes to use for offsite
> backups.
> > We had not implemented DRM and still haven't yet but are in the
> process
> of
> > doing so. We have nearly 100 copy tapes in the library 4mmlib_copy
> with
> > 0.3
> > % utilization and .51% utilization etc. This apparently happened
> because
> > our ADSM server was not set up correctly. Our tapes fill up to 100%
> now.
> > My
> > question is when we tried to reclaim the data off of these tapes it
> gave
> > us
> > an error message indicating that we cannot reclaim copy tapes. Is
> there
> > any
> > way to reclaim the data off of these tapes so we can make them
> scratch? I
> > am under the impression from what I have read copy tapes cannot be
> > reclaimed and if this is so then we will have to keep buying more
> tapes
> > instead of scratching the ones we already have. We can delete them
> and
> > discard data but we would rather not do that in the event there is
> some
> > information on these tapes that we may need. Thanks for any help. We
> are
> > still new to ADSM and learning how it works.
> >
> > Janie Pendergraft
> > St. John's Regional Medical Center
> >
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