From the 'help update stg'
MAXSCRatch=number
     Specifies the maximum number of scratch volumes that ADSM can request.
     This parameter is optional. You can specify an integer from 0 to
     100000000. By allowing ADSM to request scratch volumes, you avoid
     having to define each volume to be used.

     The value specified for this parameter is used to estimate the total
     number of volumes available in the storage pool and the corresponding
     estimated capacity for the storage pool.

     Scratch volumes are automatically deleted from the storage pool when
     they become empty. When scratch volumes with the device type of FILE
     are deleted, the space that the volumes occupied is freed by ADSM and
     returned to the file system.

This bit me one day.  I had added new scratch tapes without upping the
maxscr.  ADSM did not know they were available.  All processes that wanted a
scratch tape mounted were waiting for the same volume.
I hope this helps.
Mary Vraspir
West Teleservices
Omaha,NE


        -----Original Message-----
        From:   Craig Winters [SMTP:CWinters AT OTPCO DOT COM]
        Sent:   Tuesday, May 18, 1999 3:33 PM
        To:     ADSM-L AT VM.MARIST DOT EDU
        Subject:        Re: Doesn't delete a volume return it to scratch?

        It shows a value of 15.  But what does that tell me?  Is it the
actual
        number of scratch volumes available or the number of potential
volumes that
        can be returned to scratch?

        Craig

        > -----Original Message-----
        > From: Vraspir, Mary J. [SMTP:MJVraspir AT WEST DOT COM]
        > Sent: Monday, May 17, 1999 3:12 PM
        > To:   ADSM-L AT VM.MARIST DOT EDU
        > Subject:      Re: Doesn't delete a volume return it to scratch?
        >
        > Craig,
        > You should also check your maxscratch value.
        > Q stg f=d
        > Mary Vraspir
        > West Teleservices
        > Omaha, NE
        >
        >         -----Original Message-----
        >         From:   Craig Winters [SMTP:CWinters AT OTPCO DOT COM]
        >         Sent:   Monday, May 17, 1999 1:43 PM
        >         To:     ADSM-L AT VM.MARIST DOT EDU
        >         Subject:        Doesn't delete a volume return it to
scratch?
        >
        >         I thought when you delete an empty volume that it goes to
scratch
        > area.  I
        >         have done this with a couple of volumes because they were
not set
        > to
        >         automatically to go to scratch when empty.  The reason I
question
        > this is
        >         because when the db backup command is set to run it fails
because
        > it
        > claims
        >         there is no scratch volume available.  Does this have to
do with
        > any
        >         retention setting?  We are running an A01 3466 with a 3575
library
        > with
        >         version 3.1.2.20.
        >
        >
        >         Craig Winters, System Programmer
        >         ----------------------------------------------------
        >         Otter Tail Power Company
        >         PO Box 496
        >         Fergus Falls, MN 56538-0496
        >
        >         Phone: 218-739-8288
        >         Fax:      218-739-8632
        >         E-mail: cwinters AT otpco DOT com
        >         ---------------------------------------------------
        >                              =================
        >           __              ___=================
        >          /  \        _ __ =====
        >         |    |======|_ | |  |   /\  | |
        >          \__/  |  | |_ |\   |  /--\ | |_
        >                            Power Company