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From: Gionatan Danti <g.danti@assyoma.it>
To: LVM general discussion and development <linux-lvm@redhat.com>
Cc: Dave Cohen <linux-lvm@dave-cohen.com>
Subject: Re: [linux-lvm] repair pool with bad checksum in superblock
Date: Fri, 23 Aug 2019 16:58:30 +0200	[thread overview]
Message-ID: <07a8641dd1c8c10b24a65f546557685c@assyoma.it> (raw)
In-Reply-To: <b17bea72-f9c3-9be6-c237-f56b8b446530@redhat.com>

Il 23-08-2019 14:47 Zdenek Kabelac ha scritto:
> Ok - serious disk error might lead to eventually irrepairable metadata
> content - since if you lose some root b-tree node sequence it might be
> really hard
> to get something sensible  (it's the reason why the metadata should be 
> located
> on some 'mirrored' device - since while there is lot of effort put into
> protection again software errors - it's hard to do something with
> hardware error...

Would be possible to have a backup superblock, maybe located on device 
end?
XFS, EXT4 and ZFS already do something similar...

Regards.

-- 
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti@assyoma.it - info@assyoma.it
GPG public key ID: FF5F32A8

  reply	other threads:[~2019-08-23 14:58 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-23  0:18 [linux-lvm] repair pool with bad checksum in superblock Dave Cohen
2019-08-23  8:59 ` Zdenek Kabelac
2019-08-23 11:40   ` Dave Cohen
2019-08-23 12:47     ` Zdenek Kabelac
2019-08-23 14:58       ` Gionatan Danti [this message]
2019-08-23 15:29         ` Stuart D. Gathman
2019-08-25  2:13       ` Dave Cohen

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