From: Stan Hoeppner <stan@hardwarefreak.com>
To: Bill Davidsen <davidsen@tmr.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID 10 Repairs
Date: Sat, 08 Jun 2013 18:28:40 -0500 [thread overview]
Message-ID: <51B3BE28.40305@hardwarefreak.com> (raw)
In-Reply-To: <51B36B4C.4090101@tmr.com>
On 6/8/2013 12:35 PM, Bill Davidsen wrote:
> Stan Hoeppner wrote:
>>
>> Or just acquire two 2TB drives an mirror them. 20x 250GB drives in
>> RAID10 is 2.5TB net space. Surely you don't currently have 20 drives in
>> this RAID array. If you're acquiring 250GB drives in 2013 I'd guess
>> you're not after performance. So reducing spindle count shouldn't be an
>> issue, should it?
>>
> Actually the only reason to use small drives any more is for
> performance, fast drives (10k+ rpm) tend to be small. And expensive.
The WD Velociraptor 250 SATA is the only 250GB drive ever sold with a
10K+ spindle. All others are SAS, and are 73, 146, 300, 450, 600,
900GB. If he has 250GB Raptors and needs the random IOPS performance,
then it makes sense to maintain the RAID10 array. If not and he simply
needs capacity...
> I agree that this user probably isn't doing that.
> I see Newegg has decent TB drives for $59 now, not server grade, but
> decent stuff.
then the larger mirror pair makes more sense.
--
Stan
next prev parent reply other threads:[~2013-06-08 23:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-03 2:07 RAID 10 Repairs Rob Emanuele
2013-06-03 5:13 ` Stan Hoeppner
2013-06-08 17:35 ` Bill Davidsen
2013-06-08 23:28 ` Stan Hoeppner [this message]
2013-06-09 2:11 ` Bill Davidsen
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