You might set up a reclamation storage pool on disk (if you have enough
disk space) in order to have at least one driver free.

Mauro

> You may want to take a look at setting up a reclaim pool for each of
the
> drives. The reclaim pool must be a sequential file device. Set the
reclaim
> pool to migrate back to the tape drive, set the hi to 0 and the low to
0 so
> you don't hang stuff out on the reclaim pool.
>
> Ken
>
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf
Of
> > Daniel Mondaca S. - Dpto. Procesam. Infor. Sub. Dir. Informatica
> > Sent: Friday, August 06, 1999 11:04
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Space Reclamation and mounted tape problems
> >
> >
> > Hi everybody,
> >
> > I'm new in ADSM administration so I'm sorry if my questions are too
> > basics.
> >
> > I hope anybody can help me on some problems that we are experiencing
> > with ADSM.
> > We have ADSM version 3.1.2.0 runing on a Sun Enterprise 1000 domain
with
> > Solaris 2.5.1 working with 2 IBM 3590 tape devices configurated as 2
> > libraries (DSMLIB01 and DSMLIB02) each with separated storage pools
> > defined.
> >
> > The problems:
> > 1.- In the last few days the system has began to make a lot of Space
> > Reclamation process that take too much time to finish afecting the
> > completition of normal backups.
> >
> >
> > In my instalation the process makes the following steps:
> >         - Take a tape(1) and copy it's useful contents to a empty
> > tape(2).
> >         - Take another tape(3) and copy it's useful contents to the
> > second tape above (2)
> >         - Repeat the process until de destination tape(2) become full
> > with useful data.
> >         - Copy the tape(2) to one of the original tapes and let it as
> > scratch.
> >         - Let the rest of te tapes as scratch.
> >
> > In this process all data is moved twice from one to other tape
> >
> >  Is there any way to make the Space Reclamation process faster?
> >  Is there any way to take up Space Reclamation manually?
> >
> >  So far, I don't have plans to puchase another Tape device.
> >
> >
> > 2.- Some times there are tapes that  become in a strange statatus:
> >         The tape is mounted in the drive.
> >         When I make a "query mount" command in the DSMADMC the system
> > answer indicating that there are 1 tape mounted in use.
> >         I check the system and there are not process o sessions
running.
> >
> >         I go to the 3590 drive and I can't see any operation with the
> > tape.
> >
> >     The status I described above doesn't change for hours unless I
> > shutdown and start ADSM server program.
> >     I can't use the dismount command because the tape status in IN
USE.
> >
> >     Is there any way to force the dismount of the tapes or to change
> > it's status to IDLE?
> >     I think this is a program bug. Anyone has hear about this
problem?
> >
> > Thanks in advance,
> >
> >                 Daniel Mondaca S.
> >               System Engineer
> >