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Date: Fri, 15 Feb 2013 10:22:16 +0100
From: Lars Ellenberg <lars.ellenberg@linbit.com>
Message-ID: <20130215092216.GD20791@soda.linbit>
References: <511BB48A.3010009@ubuntu.com> <511C33AF.7020506@shiftmail.org>
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Subject: Re: [linux-lvm] pvmove doesn't work the way the man page says
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On Thu, Feb 14, 2013 at 12:58:54AM +0000, Alasdair G Kergon wrote:
> On Thu, Feb 14, 2013 at 01:45:35AM +0100, Spelic wrote:
> > breaking it up in smaller subsegments would probably have been wiser,  
> 
> The plan was always for more frequent checkpoints, but it involves more
> complicated code and there's simply been no need to do this: given how rarely
> pvmove is used, the current approach seems to be good enough and nobody's
> written the extra code yet.

Also, if you want more frequent checkpoints,
you can do that by calling pvmove appropriately:
just don't move the whole thing at once,
but repeatedly call pvmove with an explicit extent range.

	Lars