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From: Wei Lin <lin.wei15@imperial.ac.uk>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com, Wei Lin <lin.wei15@imperial.ac.uk>
Subject: Re: Question on migrating data between PVs in xfs
Date: Thu, 11 Aug 2016 10:04:09 +0100	[thread overview]
Message-ID: <20160811090409.GA3448@ic> (raw)
In-Reply-To: <20160810105639.GR16044@dastard>

Hi Dave,

Now I see your point. Initially I wanted to store the linear concat
layout in a special file, read this file during allocation to compute on
the fly if an extent falls into a physical volume. But now I do agree
that from the perspective of OS engineering, filesystems should not know
the underlying layout, at least not in such an "ad-hoc" way. Aligning
AGs to physical volumes and applying allocation policy might be the best
approach.

Thank you very much for the help.

Cheers,
-- 
Wei Lin

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      parent reply	other threads:[~2016-08-11  9:04 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-09 14:50 Question on migrating data between PVs in xfs Wei Lin
2016-08-09 22:35 ` Dave Chinner
     [not found]   ` <20160810092313.GA16193@ic>
2016-08-10 10:56     ` Dave Chinner
2016-08-10 16:31       ` Emmanuel Florac
2016-08-10 21:51         ` Dave Chinner
2016-08-11  9:26           ` Wei Lin
2016-08-11 10:44           ` Emmanuel Florac
2016-08-11  9:04       ` Wei Lin [this message]

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