[ale] RAID 10 Question

[Rich Faulkner]

...unless you use WD VelociRaptors (which I do) and those are 10K
drives...

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136557

Yes, they are a bit pricey compared to 7.2K but they are fast.  Size vs.
price becomes the issue though and you may just want to go with some
simple 7.2K SATA drives.


On Fri, 2011-09-23 at 19:07 +0000, Lightner, Jeff wrote:
> rpm = revolutions per minute rather than RedHat Package Manager in
> this context.
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> 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.
> 
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>                                    
> ______________________________________________________________________
> 
> 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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