Since you are using the same destination copypool, even if your mount limit
is 3, it's could be waiting for the same output tape (not a drive). TSM
will try to stack copypool data, unless collocation is activated.
Also, you normally would not want to occupy all the drives; most shops want
to keep a drive available for (a) restore requests, (b) daytime backup jobs,
(c) unanticipated drive failure or other maintenance chores (like
checkout/checkin and triggered db- backups).
BTW, if you really wanted to find additional drives, they can be found on
the used market; many customers are dumping their old 3575's to move up to
LTO or 3590... have your local IBM rep. refer you (else check the used
marketers out there).
Don France
Technical Architect -- Tivoli Certified Consultant
Tivoli Storage Manager, WinNT/2K, AIX/Unix, OS/390
San Jose, Ca
(408) 257-3037
mailto:don_france AT att DOT net
Professional Association of Contract Employees
(P.A.C.E. -- www.pacepros.com)
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
David Longo
Sent: Tuesday, August 13, 2002 10:31 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Mount point with backup stg cmd
It should work, only need one drive for that command.
However, if you do a "q devclass blah f=d" for the devclass
that is your tapepool, what is the "Mount Limit" defined
as. It maybe less than 3.
Most people have it set to "DRIVES", therefore
making it the same as your number of tape drives.
David Longo
>>> Jbaechi AT CSCC DOT EDU 08/13/02 11:45AM >>>
Hi, Experts,
I have a little 3575 L18 tape library attached to TSM on AIX. As I have
only 3 dirves on it (strange..), I tried to issued 'backup stg tapepool
copypool' and it gets 2 drives. Now that I have only 1 drive left, I
issued 'backup stg diskpool copypool' thingking that copying from
diskpool to copypool (tapes) would need only 1 drive. But, it says still
'waiting for mount point'. Does it mean that anytime I issue the command
'backup stg', it will use 2 drive at a time?
I tried to buy more drives, but IBM withdrew 3575 library from market.
Any tips for searching for used market? Thanks for your help as usual.
Jin Bae Chi (Gus)
Data Center
614-287-2496
614-287-5488 Fax
e-mail: jbaechi AT cscc DOT edu
"MMS <health-first.org>" made the following
annotations on 08/13/2002 01:32:14 PM
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