Hi,

            Thanks for the reply,

The errors in act log are

 ANR2017I Administrator  issued command: UPDATE
                      DRIVE 3494 RMT2 online=yes
12/20/04   18:29:21  ANR8467I Drive RMT2 in library 3494 updated.
12/20/04   18:31:21  ANR8337I 3590 volume PPA148 mounted in drive RMT2
                      (/dev/rmt2).
12/20/04   18:36:35  ANR8330I 3590 volume PPA148 is mounted R/W in drive
RMT2
                      (/dev/rmt2), status: IN USE.
12/20/04   18:58:13  ANR8336I Verifying label of 3590 volume PPA148 in
drive
                      RMT2 (/dev/rmt2).
12/20/04   18:59:28  ANR8792E Unrecoverable drive failures on drive RMT2

                      (/dev/rmt2); drive is now taken offline.
12/20/04   18:59:28  ANR8468I 3590 volume PPA148 dismounted from drive
RMT2
                      (/dev/rmt2) in library 3494.

I am not sure if there are any specific tapes, but they do remain online
for a while.


They are attached to a AIX machine, i have check the errpt but could not
find any thing special.

They are 3590E and are being used in 3494.

Do they need any hardware level service?

Looking forward for any help




"David N. Reiss" <dreiss AT MCHSI DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
12/17/2004 10:20 AM
Please respond to
dreiss AT mchsi DOT com


To
ADSM-L AT VM.MARIST DOT EDU
cc

Subject
Re: Drives become unavailable






Hi there,

More info is needed.

* What are the messages in your activity log?
* What OS is it attached too?  If AIX, check the errpt.  If Windows check
your event viewer.
* How long do they work for after you make them available again?  Do they
break right away as soon as they use a tape, or it is specific tape(s)
causing the issue.  Bad Tapes can cause weird things to happen.
* What kind of drives are they, and what kind of library are they in?

Lots of things can cause a drive to go off-line.

-----
David N. Reiss        dreiss AT mchsi DOT com
Home: (309)/243-1504  Cell: (407)/325-7623
A paranoid is someone who has all the facts at his disposal.
                - William Burroughs


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Mohsin Saleem Khan
Sent: Thursday, December 16, 2004 9:58 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Drives become unavailable


Hi,

         We have two drives define in TSM 5.1 Level 6.5, it has been
happening now from few days that every drives become unavailable quite
often, and I update them as online=yes they become available again....I am
not sure why it is happening and what should i do, to get stable drives,
any help

Regards
Mohsin