Random Disk I/O Tests
I have two openvz servers running CentOS 6.x both with 32GB of RAM. One is an Intel Xeon E3-1230 quad core with two 4TB 7200 SATA drives in software RAID1. The other is an old HP DL380 dual quad core with 8
750GB 2.5″ SATA drives in hardware RAID6. I want to figure out which one has better random I/O performance to host a busy container. The DL380 currently has one failed drive in the RAID6 array until I get down to replace it, will that degrade performance? Is there an easy way to test disk I/O? On a plain Gigabyte file copy the software RAID1 box seems to be twice as fast.
3 thoughts on - Random Disk I/O Tests
IOZone is your friend. It can generate all sorts of I/O patterns and then create you some pretty graphs.
Hello,
Try to use fio – http://git.kernel.dk/?p=fio.git;a=summary
You may use my rpm – fio-2.0.10-1.el6.x86_64.rpm
<http://yum.aclub.net/pub/linux/CentOS/6/umask/x86_64/fio-2.0.10-1.el6.x86_64.rpm>
or rebuild this src.rpm fio-2.0.10-1.el6.src.rpm
<http://yum.aclub.net/pub/linux/CentOS/6/umask/SRPMS/fio-2.0.10-1.el6.src.rpm>
using fresh sources.
Am 28.08.2014 um 20:58 schrieb Ilyas –:
fio is available through EPEL.
Alexander