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Re: Xfs delaylog hanged up

To: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Subject: Re: Xfs delaylog hanged up
From: Spelic <spelic@xxxxxxxxxxxxx>
Date: Wed, 24 Nov 2010 01:36:37 +0100
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20101123234811.0ea3c41c@xxxxxxxxxxxxxx>
References: <4CEAC412.9000406@xxxxxxxxxxxxx> <20101122232929.GJ13830@dastard> <4CEBA2D5.2020708@xxxxxxxxxxxxx> <20101123204609.GW22876@dastard> <20101123234811.0ea3c41c@xxxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100713 Thunderbird/3.0.6
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?

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