[ale] RAID 10 Question

[Dennis Ruzeski]

Careful with the word faster in this context-- Higher RPM == Faster random
seek times.

SAS drives can be had up to 15k (with a significant price increase).

--Dennis



On Fri, Sep 23, 2011 at 3:07 PM, Lightner, Jeff <JLightner at water.com> wrote:

>   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> 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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