ADSM-L

Re: IBM 35xx Libraries, Windows 2000 and TSM - Observations

2001-01-16 12:50:43
Subject: Re: IBM 35xx Libraries, Windows 2000 and TSM - Observations
From: Mike Collins <E_Mike_Collins AT TIVOLI DOT COM>
Date: Tue, 16 Jan 2001 10:52:08 -0700
Hi Kelly,

Here's some information regarding your recent post.

   TSM recognizes that there are some short comings with RSM and will be
   providing the ability to define 3581, 3583 and 3584 libraries as type
   SCSI in the near future.  This will be accomplished with updates to
   ADSMSCSI to control the medium-changer in the 3581, 3583 and 3584
   libraries.  This work is currently in test and will be released as a PTF
   when it completes the test process. The README will document how to
   migrate from an RSM environment to a SCSI environment.   TSM will
   continue to support the definition of the library as type RSM for those
   customers who wish to utilize RSM.

   With the introduction of the SSD LTO technology, TSM has changed how it
   supports SSD tape devices and uses the SSD device driver to control the
   LTO drives on the NT platforms.  Now SSD LTO customers can easily
   download microcode updates and perform other serviceability functions.
   Whether RSM or ADSMSCSI controls the medium-changer in the library, the
   SSD device driver will control the LTO drives.


Kelly J. Lipp writes:
 > Gang,
 >
 > Well, with any luck this will rile up the works!
 >
 > This is whacked.
 >
 > The use of TSM Libraries through RSM will cause you to seriously rethink
the
 > way you manipulate media.  As there is no longer checkin/checkout/label
 > libvol, those operational procedures must be changed.  You must use RSM
to
 > perform these steps.  Checking in tapes appears to require the opening
of
 > the library and the insertion of a tape into the library rather than
using
 > the Bulk Port.  Opening a library that has a bulk port would seem silly.
 >
 > Overall this strategy appears flawed in its initial release.
 >
 > I would not recommend to anyone that they try to run this configuration.
 > >From our days worth of fooling with it the learning curve is too steep.
 > Tape manipulation is already complicated enough within TSM and this
makes it
 > more so.
 >
 > Our recommendation essentially suggests that the purchase of IBM 35xx
 > libraries for use with TSM on Windows 2000 is a mistake.  I can't
imagine
 > that anyone within IBM or Tivoli wants this.  From all appearances these
 > libraries seem to be very nice units indeed.  Not with TSM and Windows
2000
 > though.  That's a conundrum.
 >
 > What we need to know from Tivoli is the following:
 >
 > 1. Is the use of RSM on Windows 2000 an interim step leading to the use
of
 > ADSMSCSI, or is this the way it's going to be?
 >
 > 2. Will other libraries receive the same treatment?  I.e., is this the
wave
 > of the future?
 >
 > 3. Has anyone within Tivoli tested this stuff and is there some
 > documentation which might simplify this?  I've seen list entries as far
back
 > as October.  I haven't seen anyone from Tivoli weigh in on this.  I'm
sure
 > some guys in Tucson or San Jose have fooled with this.  How about giving
us
 > some guidance?
 >
 > In the meantime if any of you are considering going down this path,
STOP.  I
 > don't think you're going to like where it takes you.
 >
 > Kelly J. Lipp
 > Storage Solutions Specialists, Inc.
 > PO Box 51313
 > Colorado Springs CO 80949-1313
 > (719) 531-5926
 > Fax: (240) 539-7175
 > Email: lipp AT storsol DOT com or lipp AT storserver DOT com
 > www.storsol.com
 > www.storserver.com

Best Regards,

Mike Collins
Tivoli Storage Manager Development
E Mike Collins/Tivoli Systems or ecollins AT tivoli DOT com