How can i benchmark the disk speed on my server ?

I need some numbers for the filesystem/disk array performance on my server. Running CentOS linux. Anyone know of good apps or a way to do this ? Pretty much anything that will run on redhat will run on centos.

You mean something like time dd if=/dev/zero of=/mnt/partition/bigfile bs=1024 count=1048576 ? You can get more creative if you need to test the speed of creating/deleting/reading/writing or what not, but I'm sure that most of the info you want could be hacked together into a simple shell script.
If you don't know shell scripting, google around or post back here and someone should be able to find something for you.

What about hdparm -Tt /dev/hda of course change hda to your actual device. Its not the best benchmark but it gives a good idea.

I think for raid it will be hdparm -Tt /dev/md0

And there is the age old *nix favourite of bonnie++

klingens said:

And there is the age old *nix favourite of bonnie++

Click to expand...

Yup, bonnie++ is pretty good.