proxmox on top of debian squeeze optimization questions.

[bread-baker]

I installed proxmox on top of debian squeeze , using http://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_Squeeze

We use open-vz and kvm 3-ware raid-10 , sata disks.

What are suggested settings to try are for:

1- filesystem ( i used ext4 , and mount with noatime) .

2- Default I/O scheduler - I do not know how to check which type is used, or how to change it.

3- any other suggestions?

Also, are there any performance tests to be use to test different settings?

thanks!