[ale] RAID 10 Question

David Tomaschik david at systemoverlord.com
Fri Sep 23 17:25:41 EDT 2011


On Fri, Sep 23, 2011 at 5:12 PM, Greg Clifton <gccfof5 at gmail.com> wrote:
> Sorry, poorly phrased question on my part. Obviously faster RPM slings more
> data under the heads faster and yes you can get 10k SATA drives and 15k SAS
> drives and of course the prices go up as the spindle speed goes up. I failed
> to state it but was assuming equivalent capacity & same RPM for both
> interfaces. The main question was, whether there is an advantage of SAS vs
> SATA  with similar/same spec drives.
> Customer wants 2TB of storage and to run ESXi 5  with Windows Multipoint w/
> 10 clients + Win SBS 2008 + SQL Server + Sharepoint in VMs. So, not a
> home theater environment, more of a production environment. With this being
> the case, I suppose the 15k SAS drives would be the better choice if we can
> fit them into the budget.

SAS drives are often specced for a higher MTBF, and usually have
larger caches.  If you're looking at same capacity, cache, and
rotational speed, it all comes down to budget.


-- 
David Tomaschik, RHCE, LPIC-1
System Administrator/Open Source Advocate
OpenPGP: 0x5DEA789B
http://systemoverlord.com
david at systemoverlord.com



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