Taking the drives offline should be adequate.  You could also cancel any
processes that are trying to access the tape drives while you are
performing the upgrade.


--
Joshua S. Bassi
IBM Certified - AIX 4/5L, SAN, Shark
Tivoli Certified Consultant - ADSM/TSM
eServer Systems Expert -pSeries HACMP

AIX, HACMP, Storage, TSM Consultant
Cell (831) 595-3962
jbassi AT ihwy DOT com


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Villegas, Beatrice
Sent: Tuesday, September 17, 2002 10:10 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: 3494 Pause Mode and TSM

Hi TSM'ers,

I have a quick and perhaps simple question. We have to upgrade the
firmware
on all our 10 3590 drives and for this we need to put the Library in
Pause
mode.

My question is: Should I stop TSM during this time? Or should I just put
all
the drives offline?
Is there anything else I should do on TSM?


Thanks in advance,

Beatriz