[ale] RAID 10 Question

Lightner, Jeff JLightner at water.com
Fri Sep 23 15:07:24 EDT 2011


rpm = revolutions per minute rather than RedHat Package Manager in this context.

In our largest disk array we have SSD, SAS and SATA.   The SAS are 10,000 RPM but the SATA are only 7200 RPM so the former are faster.






________________________________
From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of Jim Kinney
Sent: Friday, September 23, 2011 2:57 PM
To: Atlanta Linux Enthusiasts
Subject: Re: [ale] RAID 10 Question


$(x4 1 TB sata) < $(x1 1TB sas)
Both are 3Gbps but sas has faster rpm and higher heat tolerance.
But sata is easier to replace before failure due to cost. Replace every 4 years with a 5 year warranty drive and send it to a desktop.
On Sep 23, 2011 2:50 PM, "Greg Clifton" <gccfof5 at gmail.com<mailto:gccfof5 at gmail.com>> wrote:
> For a relatively small (2TB capacity) RAID 10 array comprised of 4x1TB hard
> drives, is there any performance/reliability advantage in using SAS drives
> vs SATA drives?
>
> Thanks,
> GC







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