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:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Paul Zarnowski
Sent: Monday, June 23, 2008 10:21 AM
To: ADSM-L AT VM.MARIST DOT EDU
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: ADSM-L AT VM.MARIST DOT 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
> >
> >
--
Paul Zarnowski Ph: 607-255-4757
Manager, Storage Services Fx: 607-255-8521
719 Rhodes Hall, Ithaca, NY 14853-3801 Em: psz1 AT cornell DOT edu
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.
|