Very slow

[aun_chino]

My Server is HP DL580G5
Raid Controller 128 MB
HDD S-ATA 500 GB x 4 Unit (build-raid 5)

Install CentOS 5.3
Install Zimbra

My problem is the mail system very slow, I check from TOP and found process ID but WA was very high.

Please advise for this problem.

Verapong
verapong.t@gmail.com

[phoenix]

How much RAM on this server and how many users? It's not advisable to use a RAID5 for Zimbra: Performance Tuning Guidelines for Large Deployments - Zimbra :: Wiki

[aun_chino]

Originally Posted by phoenix

How much RAM on this server and how many users? It's not advisable to use a RAID5 for Zimbra: Performance Tuning Guidelines for Large Deployments - Zimbra :: Wiki

Total Memory = 10 GB
Total Users = 50 Users or more

[ArcaneMagus]

Top and phoenix are both telling you your problem... your system is sitting there waiting on I/O. Your RAID array is not keeping up the performance level your system needs.

(wa in top for linux systems tells the amount of time the processor was doing nothing, but still blocked while waiting on I/O)

[aun_chino]

Originally Posted by ArcaneMagus

Top and phoenix are both telling you your problem... your system is sitting there waiting on I/O. Your RAID array is not keeping up the performance level your system needs.

(wa in top for linux systems tells the amount of time the processor was doing nothing, but still blocked while waiting on I/O)

Thank you very much, I think the problem is RAID5 and S-ATA Harddisk.
I will try to solve again please advise for stable hardware.

Regards,
Verapong

[phoenix]

Read the link I gave you earlier.