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Re: Optimize RAID0 for max IOPS?

To: Wolfgang Denk <wd@xxxxxxx>
Subject: Re: Optimize RAID0 for max IOPS?
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Tue, 25 Jan 2011 13:51:23 +0100
Cc: Dave Chinner <david@xxxxxxxxxxxxx>, linux-raid@xxxxxxxxxxxxxxx, Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <20110125124509.D76D6BB0B9@xxxxxxxxxxxxxx>
Organization: Intellique
References: <20110118210112.D13A236C@xxxxxxxxxxxxxx> <4D361F26.3060507@xxxxxxxxxxxxxxxxxx> <20110119192104.1FA92D30267@xxxxxxxxxxxxxx> <AANLkTikx4g99-Cf_09kEGfF2mmf4Dnuh2A5gTrtKweDy@xxxxxxxxxxxxxx> <alpine.DEB.2.00.1101241024230.14640@xxxxxxxxxxxxxxxx> <20110124215713.82D75B187@xxxxxxxxxxxxxx> <20110124230314.GA11040@dastard> <20110125083900.4dd65bf2@xxxxxxxxxxxxxxx> <20110125083643.GE28803@dastard> <20110125124509.D76D6BB0B9@xxxxxxxxxxxxxx>
Le Tue, 25 Jan 2011 13:45:09 +0100
Wolfgang Denk <wd@xxxxxxx> écrivait:

> > This is smelling like a case of barrier IOs on software raid on
> > cheap storage....  
> 
> Right. [Any way to avoid these, btw?] 

Easy enough, use the "nobarrier" mount option. 

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