We are running D25D.  This level of microcode ran fine prior to going to
TSM 4.1.  We had never had an IO error before then.  Now we receive the
errors on both our tape drives.

At 08:43 AM 1/30/01 -0600, you wrote:

Diane,

What level of microcode are you currently running on your 3590 tape drives.
We are running 3590E1A tape drives with a microcode level of D22E.  We have
been on this level of code for quite some time with no errors.  Our 3590's
are also house within a 3494.


-----Original Message-----
From: Diana Noble [mailto:djk AT UMICH DOT EDU]
Sent: Tuesday, January 30, 2001 8:15 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Problems after 4.1 Upgrade and Resolutions


I had posted some questions last month regarding problems we encountered
after our upgrade to TSM 4.1 and thought I would pass along what we
found.  We are using AIX 4.3, 3590E's and a 3494.

When issuing the dsmadmc command we received "ANS1033E An invalid TCP/IP
host name was specified".  Resolution was to edit
/usr/tivoli/tsm/client/ba/bin/dsm.sys and add a line for TCPServeraddress
which stated the tsm server name in full.  This was apparently not
necessary under 3.1.

We could not label K tapes.  We had problems with this under 3.1, but it
turned out IBM needed to flick a switch on the drives.  We upgraded the
same day.  We would receive "ANR8750E Volume is incompatible with specified
device type".  IBM had defined the volume range for the K tapes as "K
extended" and should have been defined as just "K".

We also started receiving IO errors on our 3590 tape drives.  This still
persists today, but a microcode fix for the problem is in test at IBM and
is suppose to be released by the end of the month (Hopefully!).  The error
we are receiving is "ANR8302E I/O error on drive RMT1 (/dev/rmt1)
(OP=WRITE, CC=0, KEY=0B, ASC=44, ASCQ=00".