Originally, we had the 283gb 15k drives specified, this is for an R&D partition where we put multiple copies of production. Space was getting tight, so we opted to double our R&D space by replacing the 283gb 15K with 583 gb 10k drives. Performance is adequate for R&D.
If IBM offered a 583gb 15k drive, that would have been our choice.
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Monday, April 15, 2013 11:20 AM
To: Midrange Systems Technical Discussion
Subject: RE: 9406 515 vs 8203 E4A
571GB 10k drives? I had to google that.
http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?subtype=ca&infotype=an&appname=iSource&supplier=897&letternum=ENUS111-065
My experience was that 10K drives were really slow compared to the 15K drives, unless they really did something different with these new drives.
Or, since you have a plethora of SSD's, are you using the 10K drives for "slow" data? Like old year end stuff, etc?
Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com
From: "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>,
Date: 04/15/2013 09:28 AM
Subject: RE: 9406 515 vs 8203 E4A
Sent by: midrange-l-bounces@xxxxxxxxxxxx
Tim,
I'd look at one of the new Power7+, 3 year warranty, reduced maint, etc.
Last year, we replaced a 9406-550 with a 740 8-core 8205-E6C. I could have
went with a smaller model (720), but this was the smallest that gave me 2
loops, which we wanted for redundancy purposes. Only using 3 of the 8
cores, but had to buy 8 for the 2nd loop.
Couple of other factors.
All the slolts in the Power7 and/or + CEC are NOT hot swappable, P5 and P6
were.
Also had to replace LTO3 3583 tape library, not supported on Power7 and
beyond.
If IO is an issue, I've learned from past experience, don't use the CEC
embedded DASD controller for production, IO performance issues.
Our 8205-E6C comprised of 256gb mem, 2- 5877 PCIe drawers, 2-5887 EXP 24S
DASD drawers, 4-PCIe2 1.8gb Cache RAID SAS Adapters, 18-177gb flash
drives(production),30-571gb 10kRPM SAS drives, 2-5735 8gb PCI Express Dual
Port Fiber Channel Adapters. Few other features.
The combination of the 1.8gb Cache controller and the SSD drives solved
our IO issue, production 4X faster at a minimum. I waited till IBM
announced these controllers, vital part of the solution.
Hope this all helps.
Paul
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [
mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Monday, April 15, 2013 7:37 AM
To: Midrange Systems Technical Discussion
Subject: RE: 9406 515 vs 8203 E4A
Pete,
Are they publishing what 7.2 won't run on yet? I've yet to see anything
"future" about "future" at
http://www-947.ibm.com/systems/support/i/planning/upgrade/futurehdwr.html
There, they still have references to 7.1 as "the release following i 6.1"
<snip>
IBM i Support of Selected System i and Power Models, September 2007
(updated June 2008, updated January 2009, updated June 2009)
IBM plans for IBM i 6.1 (formerly i5/OS V6R1) to be the final release
supported on iSeries models 800, 810, 825, 870, and 890. The release
following i 6.1 is planned to be supported on System i POWER5 models 515,
520, 525, 550, 570, 595, on System i POWER6 model 570, POWER6 Power 520,
550, 560, 570, 595, and on BladeCenter JS12, JS22, JS23 and JS43.
</snip>
I'm starting to really hammer on IBM on putting some future into future.
Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail
to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com
From: Pete Massiello - ML <pmassiello-ml@xxxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>,
Date: 04/14/2013 11:41 AM
Subject: RE: 9406 515 vs 8203 E4A
Sent by: midrange-l-bounces@xxxxxxxxxxxx
I think the best reason is the 7.2 won't be supported on a 9406-515, and
the 8203-E4A would be the better of the two boxes, but not the best box.
In all honesty, I would look at a 8202-E4D (4-Core), as I think it will be
a better cheaper decision when you take the cost of the hardware,
software, and H/W maintenance over a 3 year life. SWMA should be the same
as all are P05
Pete
--
Pete Massiello
iTech Solutions
http://www.itechsol.com
http://www.iInTheCloud.com
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [
mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Joe Wood
Sent: Thursday, April 11, 2013 7:06 PM
To: Midrange Systems Technical Discussion
Subject: Re: 9406 515 vs 8203 E4A
Tim,
Given these choices, I'd go with the 8203 as it's the Power6 chipset. It's
usable and supported life will simply be longer than an aged Power5+...
Your options, CPW, and throughput with the Power6 will be superior
(without picking apart CPU feature #'s).
Both are P05 software tier so the OS/LPP's (SWMA) will be the same. Both
are V7R1 capable. Others can chime in with hardware MAINTENANCE
considerations, reliability, and/or expand-ability ?
9406 515 withdrawn on Jan 1, 2009.
http://www-03.ibm.com/systems/power/hardware/systemi/515/
8203 E4A withdrawn on May 27, 2011.
http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=dd&subtype=sm&appname=pseries&htmlfid=897/ENUS8203-_h01
On Thu, Apr 11, 2013 at 2:57 PM, tim.dclinc@xxxxxxxxx
<tim.dclinc@xxxxxxxxx>wrote:
we are looking at these two systems to replace our older 170. I was
wondering which would be best and why. Also, with either run v7.1
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