From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Helmut Hullen" Subject: Re: fsck with "err is 1" Date: 23 Nov 2011 18:32:00 +0100 Message-ID: References: <5ED58F1E-368C-414F-BA60-9C8E240338F6@orcaware.com> 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: <5ED58F1E-368C-414F-BA60-9C8E240338F6@orcaware.com> List-ID: Hallo, Blair, Du meintest am 23.11.11: >> I can't answer that, but I can tell you that fsck for btrfs right >> now is almost useless. It can't fix anyting. > Thank you, I've read that fsck doesn't fix anything. I was curious > if doing the scrub would resolve it. I had tried ... about 4 Tbyte data have gone. 3 disks bundled with data=raid0, metadata=raid1. One disk had problems, before I run "scrub" I could read most files, Running "scrub": all had gone. One big problem of btrfs seems to be: you can't see on which partition/ disk the defect sector (or something else) may be, if there is 1 error in 1 partition you have to restore the complete bundle of disks/ partitions. Yes - I know: btrfs is still under construction. In my special case: the 4 TByte are a kind of video archive. No "valuable" data, only "nice to have". And old people still know the behaviour of old 35 mm film and/or VHS cassettes: they have errors. But these errors don't damage the whole archive. Viele Gruesse! Helmut