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From Geoff Higginbottom <>
Subject Re: Suitable solution for HW
Date Mon, 03 Mar 2014 12:19:51 GMT
Hi Daan.

As Nux has already highlighted, disk IO is the critical factor for high performance database

Using local storage within the Hypervisor will only provide very limited IOPS, even with 15k
SAS disks.

We have been doing a lot of work with SolidFire storage recently. In my opinion they are simply
the best storage option available for CloudStack, and have a plugin which integrates it directly
with CloudStack.


Geoff Higginbottom
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On 3 Mar 2014, at 11:43, "Nux!" <<>> wrote:

On 03.03.2014 11:22, P??kk?nen Pekka wrote:
Hi Daan,
Maybe I should have been clearer.
I was wondering about the implications for performance.
Would performance in a database clustering use case be better with
plain Xen (or other virtualization solution), when compared to
CloudStack with Xen?
Or is this an unnecessary concern?
Also, is CloudStack aimed for clusters consisting of tens/hundreds of
such rack servers, or is it suitable also for smaller deployments?

Cloudstack can grow from 1 to many servers.
Re hypervisor, if you want to run databases then IO will be your main concern. At some point
the hypervisor will not matter, your disks will matter. I'd look at investing in SSDs.
You can also look at conainer technology such as openvz and LXC which usually have better
IO (since they access the hardware directly).

Sent from the Delta quadrant using Borg technology!

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