[K12OSN] Performance Issue
Petre Scheie
petre at maltzen.net
Fri Mar 24 14:53:00 UTC 2006
Robert Arkiletian wrote:
> On 3/22/06, Liam Marshall <k12ltsplover at stmaurice.mb.ca> wrote:
>> I am currently running K12LTSP (ver 4.4.1 I believe) on a dual xeon 3.06 MHz
>> computer with 4-80 Gb SATA drives configured on a megaraid-4 controller raid
>> 1+0. 2 nics, and 1 is even a gigabyte nic, but all the switches involved in
>> my network are 10/100, so it is not being utilized
>
> I wonder how your RAID 1+0 SATA would fair against a RAID 1 on a pair
> of 15K rpm SCSI drives. My guess is that the scsi setup would be much
> better. Other issue could be your mem controllers FSB bottleneck.
> Your Xeons are working with your single mem controller at 533Mhz or
> 800Mhz depending on the age of your system. Opterons (with dedicated
> built in mem controllers) have a much better memory throughput and
> latency then the Xeons. But I still think the hard drives speed is
> your problem.
>
I had similar thoughts about whether he should try a pair of mirrored (RAID 1) 15k RPM
disks. On pricewatch.com I found 18GB 15k RPM Compaq disks for less than $50 including
shipping. So, perhaps you could get two of those, install them on a separate box and
use that box as an app server for, say, OOo, just to test it to see if it loads any better.
Petre
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