Your choice of P-550/570 is environment dependent. If you want to dedicate a physical server to TSM then perhaps a P-550 is a better choice.
If overall costs are a concern, including footprint and electrical, the a P-570 with multiple CEC's combined into a single frame is the better choice. Larry Clark (518) 712-5138 Home Office (518) 506-8765 Cell ----- Original Message ----- From: "Strand, Neil B." <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, June 23, 2008 10:42 AM Subject: Re: [ADSM-L] IBM p 520 vs. p 570 The p550's work well. They have better I/O expansion than the p520 and are less expensive that the p570. When you are specing out your system, keep in mind the throughput of your tape drives and add I/O if your budget allows. The p550 also makes it easier to physically relocate a server where with an LPARd p570, you are stuck with a single physical box. I have four p550s each with two LPARs, two I/O drawers attached to SAN tape drives and internal disks for the OS and TSM DB and disk pools. They are relatively simple to maintain and were a more cost effective solution than a p570 with multiple LPARs. Cheers, Neil Strand Storage Engineer - Legg Mason Baltimore, MD. (410) 580-7491 Whatever you can do or believe you can, begin it. Boldness has genius, power and magic. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Paul Zarnowski Sent: Monday, June 23, 2008 10:21 AM To: [email protected] Subject: Re: [ADSM-L] IBM p 520 vs. p 570 Nancy, We are just beginning to think about replacing the older of our two TSM servers. I am thinking that a p6 570 may be overkill, but we are looking at a p6 550 as it has a bit more head room than the 520 (in case we need it). ..Paul At 06:21 PM 6/16/2008, Nancy R. Brizuela wrote:
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: [email protected] > 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 > >
-- Paul Zarnowski Ph: 607-255-4757 Manager, Storage Services Fx: 607-255-8521 719 Rhodes Hall, Ithaca, NY 14853-3801 Em: [EMAIL PROTECTED] IMPORTANT: E-mail sent through the Internet is not secure. Legg Mason therefore recommends that you do not send any confidential or sensitive information to us via electronic mail, including social security numbers, account numbers, or personal identification numbers. Delivery, and or timely delivery of Internet mail is not guaranteed. Legg Mason therefore recommends that you do not send time sensitive or action-oriented messages to us via electronic mail. This message is intended for the addressee only and may contain privileged or confidential information. Unless you are the intended recipient, you may not use, copy or disclose to anyone any information contained in this message. If you have received this message in error, please notify the author by replying to this message and then kindly delete the message. Thank you.
