Hi Thomas,

>I always thought that TSM would dismount an IDLE tape - even when
>the Mount Retention period has not expired - when there are no free
>mount points available.

It should.

I have had the same problem ever since upgrading to TSM 3.7.20 from
ADSM 3.1.2.50 (both on AIX 4.3.2.0).  I put in a call to Tivoli tech
support who recommended that I upgrade to TSM 3.7.3.  The patch is
available at:
ftp://service.boulder.ibm.com/storage/tivoli-storage-management/maintenance/server/v3r7/AIX/LATEST

As a work around, I've set the Mount Retention to 1 minute.  The bug
is rarely even an inconvenience for me since our implementation is so
small.  Consequently, I'm in no hurry to apply the upgrade for just
one minor improvement (...and then have to figure out how many new
bugs?).


Eric Lindbeck
Data Storage Administrator
Network Infrastructure Services
SCT



                    "Rupp Thomas
                    (Illwerke)"            To:     ADSM-L AT VM.MARIST DOT EDU
                    <thomas.rupp@IL        cc:
                    LWERKE.AT>             Subject:     Mount Retention
                    Sent by: "ADSM:
                    Dist Stor
                    Manager"
                    <ADSM-L AT VM DOT MARI
                    ST.EDU>


                    07/25/00 03:12
                    PM
                    Please respond
                    to "ADSM: Dist
                    Stor Manager"





Hi *SM-ers,

on our new 3494 I have defined Mount Retention: 10 minutes.
When I do a COPY STGPOOL and TSM needs a second input
tape the previously mounted tape remains in status IDLE for 10
minutes before it is unmounted and the second input tape is mounted.

I always thought that TSM would dismount an IDLE tape - even when
the Mount Retention period has not expired - when there are no free
mount points available.

Should I set Mount Retention to 1 or 2 minutes or is there another
way to circumvent this problem?

Thanks in advance!

Kind regards
Thomas Rupp
Vorarlberger Illwerke AG
MAIL:   thomas.rupp AT illwerke DOT at
TEL:    ++43/5574/4991-251
FAX:    ++43/5574/4991-820-8251