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xen-users
Re: [Xen-users] HDD benchmarking
Hi Michael,
Thanks for the reply. I did use LVM's.
So I guess what I should do, is run iostat with the domU's running and
check the utilisation, and then shut down all of the domU's and run a
benchmark program to see what the HDD's are capable of?
Cheers,
Andrew
On 12/05/2010 12:35 AM, Michael Schmidt wrote:
Hi
Andrew,
did you use LVM to provide diskspace to the DomUs, oder
file-based-images?
With iostat (mostly included in package named sysstat) you can monitor
the IOs and IO utilisation for each block device and partition.
If you need a benchmark to simulate random IOs, i can suggest you the
tool sysbench (http://sysbench.sourceforge.net/).
Best Regards
Michael Schmidt
Am 11.05.10 16:07, schrieb Andrew Kilham:
Hi,
I currently have a server with two 15,000rpm SAS drives in RAID 1. I am
about to purchase a near identical server as I have run out of RAM and
HDD space in my first server, and I am interested in finding out
whether I can go for slower HDD's - ie I want to see if the HDD's in my
current server are maxed out.
Is there any tool that I can use to benchmark/view the I/O stats of the
HDD's, not for a particular domain, but rather for the entire physical
server - ie I want to monitoring the physical HDD's instead of a VM's
HDD's. Can I do this through dom0? Can anyone tell me the name of a
program that can do this (CentOS 64bit)? And finally, is there a way
that I can tell the actual max throughput of my HDD's so I can see how
close to the limit they currently are?
Cheers,
Andrew
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