Raid Controller P410 perfomance

[aoz1]

Proliant server on dedicated hosting

2XE5620

16 GB memory

Raid HP Smart Array P410/512 BBWC

HDs 4xEF0300FATFD in 10 raid (SAS 15К)

On server Centos 5.last

Posgress

Php Fast cgi

Database and scripts completely in memory. In fact it's no readining from disks.

device cciss0 exclusively assigned to 14 processor interrupt.

As the result I have average 75% processor idle on 1MByte/sec writing to RAID.

Actually I expect much more.

Is it should be or I'm doing something wrong?

Thanks.

P.S. This thread has been moved  from Servers > General to ProLiant Servers (ML,DL,SL) - HP Forums Moderator