From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Helmut Hullen" Subject: Re: 800 GByte free, but "no space left" Date: 06 Dec 2010 18:13:00 +0100 Message-ID: References: <20101206151804.GE4273@carfax.org.uk> Reply-To: helmut@hullen.de Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII To: linux-btrfs@vger.kernel.org Return-path: In-Reply-To: <20101206151804.GE4273@carfax.org.uk> List-ID: Hallo, Hugo, Du meintest am 06.12.10: >> How can I see that changing the kernel makes things better? It's >> more and more difficult to externalize (?) btrfs directories to >> other disks ... > Updating the kernel won't fix the problem I'm thinking of (sorry). > It will, however, fix the bug that stops the btrfs tool from > reporting what RAID levels you've got. > The problem I suspect you may have (because your symptoms seem to > be the same as mine) is that there are some circumstances where the > filesystem can change RAID levels pretty much arbitrarily. Running > "btrfs fi df" with a kernel that reports RAID levels will show > whether that's the case, as you'll have more than one RAID level > listed. Kernel 2.6.35.8: # btrfs filesystem df /srv/MM Data: total=2.39TB, used=2.37TB Metadata: total=5.25GB, used=3.51GB System: total=12.00MB, used=188.00KB Kernel 2.6.37-rc4: # btrfs filesystem df /srv/MM Data, RAID0: total=2.39TB, used=2.37TB System, RAID1: total=8.00MB, used=188.00KB System: total=4.00MB, used=0.00 Metadata, RAID1: total=4.25GB, used=3.51GB Metadata, DUP: total=1.00GB, used=2.33MB Hope it helps! Viele Gruesse! Helmut