From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On 
Behalf Of Abdulaziz Almuammar
>I am planning to upgrade our TSM server from 5.2 to 5.3 and I 
>have NT clients that have TSM 5.1.
>Since TSM server supports only 5.3 and 5.2 client and since 
>those clients versions don't support NT, how can I upgrade the 
>server and keep the backup of the NT servers?

Your assumption is incorrect. A 5.3 server will talk to a 5.1 client.
(It will talk to a 3.1 client as well.)

--
Mark Stapleton (stapleton AT berbee DOT com)
IBM Certified Advanced Deployment Professional
  Tivoli Storage Management Solutions 2005
IBM Certified Advanced Technical Expert (CATE) AIX
Office 262.521.5627