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From: Roger James <roger@beardandsandals.co.uk>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Problem with partially activate logical volume
Date: Tue, 26 Jul 2022 09:50:46 +0100	[thread overview]
Message-ID: <18239b39270.27a5.d4b3b9aee17a85f6bc878c68b3925db6@beardandsandals.co.uk> (raw)
In-Reply-To: <CAH5g025eDd60jvU+_d7DLaPdsmK0TsNjB-jkewKg5FSNJMEmJw@mail.gmail.com>


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Try https://www.linuxsysadmins.com/recover-a-deleted-physical-volume/?amp

On 26 July 2022 09:16:32 Ken Bass <daytooner@gmail.com> wrote:
> (fwiw: I am new to this list, so please bear with me.)
>
> Background: I have a very large (20TB) logical volume consisting of 3 
> drives. One of those drives unexpectedloy died (isn't that always the case 
> :-)). The drive that failed happened to be the last PV. So I am assuming 
> that there is still 2/3 of the data still intact and, to some extent, 
> recoverable. Although, apparently the ext4 fs is not recognised.
>
> I activated the LV partially (via -P). But running any utility on that (eg: 
> dumpe2fs, e2fsck, ...) I get many of these  in dmesg:
>
> "Buffer I/O error on dev dm-0, logical block xxxxxxx, async page read."  
> The thing is, the xxxxxxx block is on the missing drive/pv.
>
> I have also tried some recovery software, but eventually get these same 
> messages, and the data recovered is not really useful.
>
> Please help! How can I get passed that dmesg error, and move on. 14TB 
> recovered is better than 0.
>
> TIA
> ken
>
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://listman.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/


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_______________________________________________
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read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

  reply	other threads:[~2022-07-27  7:39 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-25 14:48 [linux-lvm] Problem with partially activate logical volume Ken Bass
2022-07-26  8:50 ` Roger James [this message]
2022-07-27 10:49   ` Roger Heflin
2022-07-27 11:26     ` Roger James
2022-08-03 21:31       ` Ken Bass
2022-08-04 11:07         ` Roger Heflin
2022-08-05 12:03         ` Zdenek Kabelac
2022-08-05 12:42           ` Ken Bass
2022-07-27 19:56 ` Zdenek Kabelac

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