From: Markus Roeffen (markus.roeffen_at_iws.uni-stuttgart.de)
Date: Tue Apr 03 2007 - 15:50:33 CEST
Message-ID: <46125BA9.5070307@iws.uni-stuttgart.de> Date: Tue, 03 Apr 2007 15:50:33 +0200 From: Markus Roeffen <markus.roeffen@iws.uni-stuttgart.de> Subject: Re: Re: Antw: Re: [suse-sles-e] Re: catastrophic disk-performance on SLES10 with SATA drives
Hi Andreas,
thank you for writing back.
matilda matilda wrote:
> Hi Markus,
>
> thank you for performing the test so quickly.
>
> I don't know what you think about this behaviour.
> In my opinion it's not o.k. But probably I'm too stupid for
> that stuff. ;-)
>
> Do you have the possibility to make the test with a storage device
> NOT attached to a controller using cciss? It would be really
> interesting to see if it only happens with cciss.
>
>
The same thing happens on our external Oxygen RAID system without cciss.
And the performance is even worse. :-(
> The 54 MB/s you get are not too bad in my opinion if it's RAID5.
> On a RAID1 I would expect more if you don't have too much load
> otherwise.
>
>
It was RAID1 and I was the only user. With more than 5 users the server
is simply unusable, even my 11 year old Pentium Pro (without X11 and
KDE) would beat the poor performance without difficulties. (To make this
situation even more frustrating: Today I have learnd from the HP
homepage that the letter p in HP ProLiant DL360 4p stands for
"performance".)
A new firmware version which isn't on the support cd has arrived (
http://h18023.www1.hp.com/support/files/server/us/revision/8926.html ),
so if the guys from Novell or HP (or from my external RAID storage) have
no idea, I'll probably try that version.
We also could test another linux distribution (Knoppix CD or something
like that) to exclude (or verify) a SLES-only problem.
Best regards
Markus
-- ------------------------------- Markus Roeffen Institut für Wasserbau IWS Universität Stuttgart Pfaffenwaldring 61 70569 Stuttgart Tel: +49(0)711/685-67010 Fax: +49(0)711/685-67020 Mail: markus.roeffen@iws.uni-stuttgart.de --------------------------------------------------------------------- To unsubscribe, e-mail: suse-sles-e-unsubscribe@suse.com For additional commands, e-mail: suse-sles-e-help@suse.com
This archive was generated by hypermail 2.1.7 : Tue Apr 03 2007 - 17:54:43 CEST