From: Stan Hoeppner <stan@hardwarefreak.com>
To: xfs@oss.sgi.com
Subject: Re: Xfs delaylog hanged up
Date: Tue, 23 Nov 2010 19:40:45 -0600 [thread overview]
Message-ID: <4CEC6D1D.1080706@hardwarefreak.com> (raw)
In-Reply-To: <4CEC5E15.7080307@shiftmail.org>
Spelic put forth on 11/23/2010 6:36 PM:
> On 11/23/2010 11:48 PM, Emmanuel Florac wrote:
>> So Spelic, you're using the 3Ware as a SATA controller, but not a RAID
>> controller? This is quite unexpected, though going with md
>> instead provides better IOPS.
>>
>
> Yep, because I know MD better, I can see the code, it's more flexible
> and customizable, can be controlled with scripts more easily... Also
> parameters to the underlying drives can be controlled if I use MD, and
> it's easier to align filesystem to stripes. Also my time is better spent
> learning it as MD won't change the next time I buy a different hw
> controller.
> What would be the advantage of using hardware raid?
If there is no advantage then why buy an $800+ real hardware RAID card
and then deploy it as a vanilla SAS/SATA HBA with software RAID? What a
waste of a decent RAID card...
You could have gone with two of these instead
http://www.newegg.com/Product/Product.aspx?Item=N82E16816117157
saving ~$500 and having similar if not slightly better performance with
software RAID.
--
Stan
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next prev parent reply other threads:[~2010-11-24 1:39 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-22 19:27 Xfs delaylog hanged up Spelic
2010-11-22 23:29 ` Dave Chinner
2010-11-23 11:17 ` Spelic
2010-11-23 13:28 ` Spelic
2010-11-23 20:46 ` Dave Chinner
2010-11-23 22:14 ` Stan Hoeppner
2010-11-24 0:20 ` Dave Chinner
2010-11-24 13:12 ` Spelic
2010-11-24 21:50 ` Dave Chinner
2010-11-23 22:48 ` Emmanuel Florac
2010-11-24 0:36 ` Spelic
2010-11-24 1:40 ` Stan Hoeppner [this message]
2010-11-24 6:18 ` Michael Monnerie
2010-11-24 7:44 ` Emmanuel Florac
2010-11-24 0:58 ` Spelic
2010-11-24 5:44 ` Dave Chinner
2010-11-25 23:34 ` Spelic
2010-11-26 4:20 ` Dave Chinner
2010-11-24 22:52 ` Spelic
2010-11-26 22:43 ` Spelic
-- strict thread matches above, loose matches on Subject: below --
2010-11-24 4:03 Richard Scobie
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