| To: | Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: Anyone using XFS in production on > 20TiB volumes? |
| From: | Eric Sandeen <sandeen@xxxxxxxxxxx> |
| Date: | Thu, 23 Dec 2010 15:12:55 -0600 |
| Cc: | Dave Chinner <david@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx |
| In-reply-to: | <alpine.DEB.2.00.1012231304130.12482@xxxxxxxxxxxxxxxx> |
| References: | <alpine.DEB.2.00.1012221128440.5245@xxxxxxxxxxxxxxxx> <20101222175611.1c7d5190@xxxxxxxxxxxxxxxxxxxx> <4D124B71.9030401@xxxxxxxxxxx> <20101223012655.2681c596@xxxxxxxxxxxxxx> <alpine.DEB.2.00.1012221928050.7452@xxxxxxxxxxxxxxxx> <20101223005630.GJ4907@dastard> <alpine.DEB.2.00.1012230442150.7452@xxxxxxxxxxxxxxxx> <alpine.DEB.2.00.1012231304130.12482@xxxxxxxxxxxxxxxx> |
| User-agent: | Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 |
On 12/23/10 12:06 PM, Justin Piszcz wrote: > > On Thu, 23 Dec 2010, Justin Piszcz wrote: > > > Hi, > > How come parted using (optimal at 1mb alignment is slower than no > partition? because parted got it wrong, sounds like. > In addition, sunit and swidth set properly as mentioned > earlier appears to be _slower_ than defaults with no partitions. stripe unit over an incorrectly aligned partition won't help and I suppose could make it worse. align your partitions, using sector units, to a stripe width unit. Set the stripe width properly on the fs on top of that. -Eric > > http://home.comcast.net/~jpiszcz/20101223/final.html > > Justin. > |
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