From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arne Jansen Subject: Re: what does "scrub" mean? Date: Wed, 02 Nov 2011 19:00:32 +0100 Message-ID: <4EB18540.8060105@gmx.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: Helmut Hullen , linux-btrfs@vger.kernel.org To: helmut@hullen.de Return-path: In-Reply-To: List-ID: On 11/02/2011 06:41 PM, Helmut Hullen wrote: > Hallo, > > I'd like to get some explanations ... > > > # btrfs filesystem show > > Label: 'MMedia' uuid: 120b036a-883f-46aa-bd9a-cb6a1897c8d2 > Total devices 3 FS bytes used 3.80TB > devid 1 size 1.82TB used 1.29TB path /dev/sdg1 > devid 3 size 1.81TB used 1.29TB path /dev/sdc1 > devid 2 size 1.81TB used 1.28TB path /dev/sdb1 > > Btrfs Btrfs v0.19 > > # btrfs filesystem df /srv/MM > > Data, RAID0: total=3.83TB, used=3.80TB > System, RAID1: total=16.00MB, used=248.00KB > System: total=4.00MB, used=0.00 > Metadata, RAID1: total=16.25GB, used=4.93GB > > # btrfs scrub status /srv/MM > > scrub status for 120b036a-883f-46aa-bd9a-cb6a1897c8d2 > scrub resumed at Wed Nov 2 17:02:07 2011 and was aborted after 16519 seconds > total bytes scrubbed: 1.79TB with 61 errors > error details: read=4 verify=21 csum=36 > corrected errors: 28, uncorrectable errors: 24, unverified errors: 0 > can you also show the output in dmesg? Maybe the extent tree is damaged to a point where it can't be fully traversed. > # ------------------------------------------------------------ > > Why has "scrub" finished its work after less than 1/3 of the bundle? >