linux-ext4 - Re: discard + LVM

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Date:	Sat, 06 Mar 2010 23:38:30 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	Andreas Sundstrom <sunkan@...pa.cx>
CC:	linux-ext4@...r.kernel.org
Subject: Re: discard + LVM

Andreas Sundstrom wrote:
> Hi..
> 
> I have an OCZ agility SSD drive with FW 1.5 that supports the TRIM command.
> 
> I can see that it works on a plain partition.
> But it does not seem to work together with LVM.
> 
> So I'm wondering if this is expected and whether it is something that
> will be worked on to get fixed?

It is expected, as lvm is not yet passing discard requests.

I'd ask next on the LVM lists ;)

-Eric

> Otherwise I guess that I will consider reverting back to plain
> partitions on my SSD drive.
> 
> Thanks for any help
> 
> /Andreas Sundstrom
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