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Re: Debunking myths about metadata CRC overhead

Subject: Re: Debunking myths about metadata CRC overhead
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Mon, 3 Jun 2013 11:10:11 +0200
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20130603074452.GZ29466@dastard>
Organization: Intellique
References: <20130603074452.GZ29466@dastard>
Le Mon, 3 Jun 2013 17:44:52 +1000 vous Ãcriviez:

> There has been some assertions made recently that metadata CRCs have
> too much overhead to always be enabled.  So I'll run some quick
> benchmarks to demonstrate the "too much overhead" assertions are
> completely unfounded.

Just a quick question: what is the minimal kernel version and xfsprogs
version needed to run xfs with metadata CRC? I'd happily test it on
real hardware, I have a couple of storage servers in test in the 40 to
108 TB range.

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