Fwd: FW: HewlettPackard XP 256
All:
Recently I have benchmarked four storage subsystems from as many vendors.
HP's XP256 did NOT perform well using Raid 5. Using OUR production data
simulating OUR environment.
The test environment was:
- HP V2500 12 cpu
- 8 gig ram
- I/O depending on vendor
. scsi fwd "six cards"
. or scsi ultra "six cards"
. or fiber "two cards"
- Informix 7.31 64 bit.
. 220 gig production database
Raid 5 is not necessarily the issue, but the hardware and software behind
it.
Our decision was to purchase a IBM-2105/E20. This is a outstanding piece of
engineering with equally good performance. Configured ALL RAID 5 with 6 Gig
or read cache the box is outstanding. Please note that I have experienced a
long list of microcode problems which have mostly been resolved.
regards
jim namenek
>From: "Namenek, James H." <namenej@diebold.com>
>To: namenej@hotmail.com
>Subject: FW: HewlettPackard XP 256
>Date: Mon, 25 Sep 2000 15:44:46 -0400
>
>Forward...
>
>regards
>Jim Namenek
>
>phone: 330-490-5929
>fax: 330-490-5735
>email: namenej@diebold.com
>
>
>
>-----Original Message-----
>From: Art S. Kagel [mailto:kagel@bloomberg.net]
>Sent: Monday, September 25, 2000 11:33 AM
>To: informix-list@iiug.org
>Subject: Re: HewlettPackard XP 256
>
>
>I'd bet that RAID10 will give you 50% better performance than RAID5 and
>100% more safety for your data.>
>Art S. Kagel
>
>edem wrote:
> >
> > I've seen article about RAID 5 and Informix goes very bad, and i have
> > question:
> > did anyone have experience with Hewlett Packard XP 256 and RAID 5 and
> > Informix? How are they working together?
> > We have XP256 and RAID 1, and our local HP service said that with RAID 5
> > we will make 30 % better performance.
> > Disks in XP256 are used only for informix 7.31 databases on HPUX 11.0
> > (V2500) databases size ~200GB
> >
> > Adam
regards
Jim Namenek
Diebold Inc.
Phone: 330-490-5929
Fax: 300-490-5735
Email: namenej@diebold.com
Email: namenej@hotmail.com
Please respond to namenej@hotmail.com.
IIUG is delaying my email because our business mail server contains a bad
phrase. "read backwords" -10hcxesm- " :-)
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