This will depend on the size of your mainframe, we run on OS/390, we have 6 systems running 9 LPARS, plus some extra LPARS for other workload. We have 15 instances of TSM running on various systems and run up to 8 of these on one LPAR at any time. If you want the exact size of our systems and LPARS, I would have to track those numbers down. I do know that TSM as a whole utilizes very little of our mainframe and has never had a problem keeping up and we backup 2 TB from over 800 clients nightly. The short of it is, if your mainframe has enough CPU power you will be OK.
Ryan Miller Principal Financial Group Tivoli Certified Consultant Tivoli Storage Manager v4.1 -----Original Message----- From: Thomas Denier [mailto:[EMAIL PROTECTED]] Sent: Friday, February 07, 2003 2:45 PM To: [EMAIL PROTECTED] Subject: Future of mainframe TSM We run a 4.2.3.2 TSM server under OS/390. We have about 110 active client systems, sending about 300,000 files and about 70 gigabytes to the server each night. Our best estimate is that this workload will double in the next two years. Is it reasonable to stay with an OS/390 or zOS server in the face of the projected growth? If so, how do we prove that the mainframe is up to the task? Most IT managers around here want to believe that the mainframe is the wrong choice for TSM or anything else.
