ADSM doesn't make any use of 3494 bulk i/o.
You can replace the 10 slot conv i/o with a 30 slot one - buy a bit more time!
If you use ADSMs DRM facility (also at additional cost) the mounts/dismounts
don't get blocked and the DRM job waits until the convenience i/o slots are
empty.
Regards, Sheelagh
------------------------------------------------------------------------------
Sheelagh Treweek Email: sheelagh.treweek AT oucs.ox.ac
DOT uk
Sheelagh Treweek Email: sheelagh.treweek AT oucs.ox.ac
DOT uk
Oxford University Computing Services Tel: +44 (0)1865 273205
13 Banbury Road, Oxford, OX2 6NN, UK Fax: +44 (0)1865 273275
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> From owner-adsm-l AT VM.MARIST DOT EDU Tue Nov 25 21:29:14 1997
> From owner-adsm-l AT VM.MARIST DOT EDU Tue Nov 25 21:29:14 1997
> MIME-Version: 1.0
> Date: Tue, 25 Nov 1997 07:00:00 MST
> From: Ben Bullock <bbullock AT MICRON DOT COM>
> Subject: Bulk Eject on 3494
> To: ADSM-L AT VM.MARIST DOT EDU
>
> This is a question about the IBM 3494 tape library we have attached to our
> ADSM server. We have ADSM running on AIX4.1.4 and ADSM version 2.1.5.13.
>
> We have a tapepool that is copied to a copypool and ejected for off-site
> storage nightly. We have the 10 tape-slot I/O station on this system, but our
> problem is that we are now backing up so much data that it wants to eject more
> than 10 tapes. The problem we are experiencing on the 3494 is that after it
> puts the 10 tapes into the I/O slots, the robot arm will just sit there and
> wait till they are removed from the slot. The robot arm will not dismount
> or mount any tapes until these tapes are removed.
> We have operators to remove these tapes, but they cannot always get to the
> machine immediately and the server's tape mount requests just back up, and the
> server sits idle.
> Our hopeful solution to this problem is to convert the door itself into a
> "bulk I/O station" with 80 slots. That means that these slots can't be used
for
> tape storage, but we have the slots to spare for now.
> Our IBM CE has "taught" the library to see the door as a bulk I/O station,
> but ADSM keeps ejecting the tapes in the 10 slot I/O station instead of the
> bulk area.
> After researching this for 2 days and talking to many IBM folks, I am still
> unable to figure out how to do it. From what I am gathering, when ADSM does a
> "checkout libvol TAPELIB3 C00000 rem=yes", it communicates to the 3494 that it
> should change that volume's category to "FF10" for "regular eject". I have
also
> found out that the category I want it to be changed to is "FF11" for "bulk
> eject". (these categories are the ones on the os/2 machine in the 3494, not in
> the ADSM database).
> I find that the "mtlib" command run at the AIX prompt will change those
> categories, but I want the "checkout libvol" command from ADSM to just change
> it to the right category. Is there a parameter I have to set with an
> "update library" or "update dev" command?
> Any help would be appreciated. Sorry to drone on, but I thought I'd explain
> it as much as I could.
>
> Thanks,
> Ben Bullock
> Micron Technology
> Boise ID
>
> bbullock AT micron DOT com
>
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