CentOS - Aug 2014 - 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.

On 28 August 2014 19:22, Matt <matt.mailinglists at gmail.com>
wrote:
> 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
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.


On Thu, Aug 28, 2014 at 10:22 PM, Matt <matt.mailinglists at gmail.com>
wrote:
> 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.
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>


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