I install OES2SP3 (SLES) on Debian KVM virtual environment as secondary server to NDS.
I connect software RAID 1 disks (2) as raw media with nss volume through virtio driver.

At KVM virtual machine I set up nocache and IO mode set "threads".

Virtual machine has 6GB memory and 6 logical cpu.

My problem is :

high load about 5 and low throughput from NSS disks (about 7MB/s) on 1Gb

Can you help me ?