From mboxrd@z Thu Jan  1 00:00:00 1970
From: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
Subject: Re: WD "RED" drives - are they any good for mdadm?
Date: Sat, 9 Feb 2013 09:20:59 +0100
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To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: Drew <drew.kay@gmail.com>, Linux RAID <linux-raid@vger.kernel.org>
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On Sat, Feb 09, 2013 at 09:10:11AM +0100, Mikael Abrahamsson wrote:
> On Fri, 8 Feb 2013, Drew wrote:
> 
> >I personally have used a 4 pack of these hung off a LSI 9204 raid
> >controller and performance is okay but not spectacular. That'd be
> >because of the drives supposedly vary from 5400 to 7200 rpm depending
> 
> Nah, the variable spin speed was an misinterpretation of some blogs
> and article writers from reading the WD material.
> 
> It's fixed spin speed, but it might vary within the same series with
> different capacities. Most of the time it's 5400-5900 for this type
> of drive.

Does anybody know if the REDs support Staggered Spin Up?

I could not find any info on that on WDC web site.

In the past, some WDC HDDs supported SSU by software
and/or by jumper, but on these it seems unknown.

Thanks,

bye,

-- 

piergiorgio