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xen-users
Re: [Xen-users] Xen and I/O Intensive Loads
On Thu, Aug 27, 2009 at 01:08:42PM -0600, Nick Couchman wrote:
>
> You might have seen my other replies, but here you go...30 disks total active
> in the SAN, with 2 hot spares. FCATA drives, 7200 RPM. I can't really
> modify the SAN controllers much - they have 4GB read and write caching - I
> suppose I can ask the vendor if they go any higher on that, but I think
> that's about the highest it goes. I may be able to purchase some SSD, but
> that gets real $$$$ real fast, and I'd rather try out some faster drives -
> maybe real FC at 10K or 15K RPM.
If you're IOPS limited then definitely go for 15K drives.
You'll get 50% more IOPS from them.
-- Pasi
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