linux-kernel - Re: Metadata space in BTRFS

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Message-ID: <20110804111202.GD28326@carfax.org.uk>
Date:	Thu, 4 Aug 2011 12:12:02 +0100
From:	Hugo Mills <hugo-lkml@...fax.org.uk>
To:	JA Magallon <jamagallon@....com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Btrfs mailing list <linux-btrfs@...r.kernel.org>
Subject: Re: Metadata space in BTRFS

[cc linux-btrfs added]

On Thu, Aug 04, 2011 at 01:42:34AM +0200, JA Magallon wrote:
> Hi all...
> 
> Just a simple question.
> I'm trying to use a 16GB SDHC card formatted in btrfs, and the system
> eats about 2GB for its metadata space. When the card fills, the
> situation is like this:
> 
> werewolf:/media/home# btrfs fi df .
> Data: total=13.22GB, used=13.22GB
> System, DUP: total=8.00MB, used=4.00KB
> System: total=4.00MB, used=0.00
> Metadata, DUP: total=1.00GB, used=58.43MB
> Metadata: total=8.00MB, used=0.00
> 
> I lose about 2Gb wrt ext4. Is there any way to shrink this metadata
> space ?
> 
> TIA
> 

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