Nancy.... Have you looked at a couple of IBM 9133-55A (Power 5+)?? We have about 2.5TB of change data per day using an IBM 3584-L32 w/3-D32s, fourteen LTO3 tape drives, 1600 LTO3 tapes and about 130TB of data on-site and 130TB of data off-site. 200GB DB size and 3.5TB of disk cache on IBM DS4800 15K RPM w/IBM SVC system using RAID-5 configuration.
BTW, we always view TSM performance as being sensitive to disk speed and a lot of memory. My two cents>>>>> -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Nancy R. Brizuela Sent: Monday, June 16, 2008 5:21 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] IBM p 520 vs. p 570 I'm sorry--I forgot to add some additional information. Our p-570 has four 1.9GHz CPU's (Power 5+) vs. two 4.2 GHz CPU's (Power 6) for the p-520. > _____________________________________________ > From: Nancy R. Brizuela > Sent: Monday, June 16, 2008 4:04 PM > To: ADSM-L@VM.MARIST.EDU > Subject: IBM p 520 vs. p 570 > > Hi All, > > We are thinking of replacing our IBM p 570 with a p 520. This server > would be used exclusively for TSM backups. We back up about 1.5 TB > every night. We have two tape libraries, one about 50 miles from here > and one locally, where we send all the backup data (about 66 TB > total). We have 8 tape drives locally and 5 tape drives at the remote > library. Our database and storage pools are on our SAN. > > What do folks think about the p 570 performance vs. the p 520--better > or worse? Has anyone made this same switch or is anyone using a p > 520? If so, how are things going? What's your environment look like? > > Thanks! > > Nancy Brizuela, CPA > Systems Programmer, Senior > University of Wyoming > IBM/Unix Systems Group > Ivinson Room 238 > (307)766-2958 > >