Not Sure about the Storage Agent, but Client backward compatibility has been 
great for us.  We run TSM 5.1.5 on AIX with a 3.7 OS2 client.  When using 
different client versions be aware that is you are using HSM or Encryption 
there may be issues that are spelled out in the client readme.

Regards,

Charles

-----Original Message-----
From: hassan MOURTADI [mailto:Hassan.MOURTADI AT LYDEC.CO DOT MA]
Sent: Tuesday, September 09, 2003 4:12 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Migration questions
Importance: High


Hi,

I am in 4.2.1.9/WinNt 4.0.   I want to perform an upgrade of my TSM server
to 5.1 version.
What impact  if i upgrade only the TSM server? The TSM Client stays with
the last version 4.2.
And the same question for Storage Agent?

Thank you to help to answer to those questions.

Best Regards
Hassan