Disk IO benchmark

[drwoo123]

I finally got my Adaptec 31605 raid controller working. It is 3 500GB seagate sata drives in a raid 5 setup with a 256KB strip size.

what kind of software do you use for disk io benchmarks?

What are some good numbers I should be looking at? Would adding more drives to the array speed things up?


thanks in advance.

 

[Rubycon]

iometer.

Run it from common stripe sizes say 32KB through 256KB or as high as your controller supports. Stripe sizes < 32KB usually don't do well on the desktop.

 

[drwoo123]

Just an FYI the machine feels more sluggish with a controller than without. It could just be my imagination, but thats why we have numbers.

 

[Rubycon]

sluggish doing what?

It will be far slower booting but once you get to the desktop it should be fine. If the controller is doing a rebuild then it will be noticeably slower.