Proliant ML110 G3 and embedded SATA RAID 1 problem

[Celso Suzuki]

Hi,

I installed RHAS4U2 on Proliant ML110 G3 and embedded SATA RAID 1 and I having a performance problem.
When I run a dd command to create a file
[root@HP ~]# time dd if=/dev/zero of=/root/teste_desempenho
bs=256000 count=4000
4000+0 registros de entrada
4000+0 registros de saída

real 2m53.488s
user 0m0.004s
sys 0m3.809s

It takes almost 3 minutes to create.
In a box with SEMPRON 2.2 with FC5, it takes only 25 seconds.

I installed RHAS4U2 with the driver from HP to recognize the RAID.

Any help, please ?

Thanks

Celso Suzuki