Deno,
I had a similar problem when I installed our new servers a couple months
ago. I'm running 3Ware 9550SX-4LP (SATA) cards in CentOS 4 boxes. I had
absolutely horrible performance and tried everything I could to get it
working better. Finally I discovered that I had the on-board caching
turned off on the cards, because they don't have the on-board battery
backup. My entire system is on a battery backup, so I figured I'd give
it a shot. My speeds went through the roof. Now the server is what I
would consider "normal", even copying large files doesn't slow things
down. I would check and see if your cards have any time of on-board
caching and enable it. Good luck.
*Jason Baker
*/IT Coordinator/
*Glastender Inc.*
5400 North Michigan Road
Saginaw, Michigan 48604 USA
800.748.0423
Phone: 989.752.4275 ext. 228
Fax: 989.752.4444
www.glastender.com <http://www.glastender.com>
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On 4/24/2007 1:30 PM, Deno Vichas wrote:
Hello all,
I've installed samba on pretty basic install on centos 4.4. I'm running
a P4 2.8Ghz, 1G Ram, Raid 5 SATA-2 disks running on both a 3ware and
Highpoint Rocket raid (this is going to get swapped out for a 3ware card
soon). When users copy files from a mac os x client I'm seeing the cpu
load avg (in top) get up to 7. These copies included 150+Gigs of lots
of smaller files inside lots of directories. Is this type of load
normal? If not where and what should I be looking at to find the
problem?
Thanks,
deno
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