All of lore.kernel.org
 help / color / mirror / Atom feed
From: NeilBrown <neilb@suse.de>
To: Thomas Fjellstrom <tfjellstrom@shaw.ca>
Cc: linux-raid@vger.kernel.org
Subject: Re: potentially lost largeish raid5 array..
Date: Fri, 23 Sep 2011 14:32:10 +1000	[thread overview]
Message-ID: <20110923143210.583e11ec@notabene.brown> (raw)
In-Reply-To: <201109221950.36910.tfjellstrom@shaw.ca>

[-- Attachment #1: Type: text/plain, Size: 1193 bytes --]

On Thu, 22 Sep 2011 19:50:36 -0600 Thomas Fjellstrom <tfjellstrom@shaw.ca>
wrote:

> Hi,
> 
> I've been struggling with a SAS card recently that has had poor driver support 
> for a long time, and tonight its decided to kick every drive in the array one 
> after the other. Now mdstat shows:
> 
> md1 : active raid5 sdf[0](F) sdh[7](F) sdi[6](F) sdj[5](F) sde[3](F) sdd[2](F) 
> sdg[1](F)
>       5860574208 blocks super 1.1 level 5, 512k chunk, algorithm 2 [7/0] 
> [_______]
>       bitmap: 3/8 pages [12KB], 65536KB chunk
> 
> Does the fact that I'm using a bitmap save my rear here? Or am I hosed? If I'm 
> not hosed, is there a way I can recover the array without rebooting? maybe 
> just a --stop and a --assemble ? If that won't work, will a reboot be ok?
> 
> I'd really prefer not to have lost all of my data. Please tell me (please) 
> that it is possible to recover the array. All but sdi are still visible in 
> /dev (I may be able to get it back via hotplug maybe, but it'd get sdk or 
> something).
> 

mdadm --stop /dev/md1

mdadm --examine /dev/sd[fhijedg]
mdadm --assemble --verbose /dev/md1 /dev/sd[fhijedg]

Report all output.

NeilBrown


[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 190 bytes --]

  reply	other threads:[~2011-09-23  4:32 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-23  1:50 potentially lost largeish raid5 array Thomas Fjellstrom
2011-09-23  4:32 ` NeilBrown [this message]
2011-09-23  4:49   ` Thomas Fjellstrom
2011-09-23  4:58     ` Roman Mamedov
2011-09-23  5:10       ` Thomas Fjellstrom
2011-09-23  7:06         ` David Brown
2011-09-23  7:37           ` Thomas Fjellstrom
2011-09-23 12:56         ` Stan Hoeppner
2011-09-23 13:28           ` David Brown
2011-09-23 16:22           ` Thomas Fjellstrom
2011-09-23 23:24             ` Stan Hoeppner
2011-09-24  0:11               ` Thomas Fjellstrom
2011-09-24 12:17                 ` Stan Hoeppner
2011-09-24 13:11                   ` (unknown) Tomáš Dulík
2011-09-24 15:16                   ` potentially lost largeish raid5 array David Brown
2011-09-24 16:38                     ` Stan Hoeppner
2011-09-25 13:03                       ` David Brown
2011-09-25 14:39                         ` Stan Hoeppner
2011-09-25 15:18                           ` David Brown
2011-09-25 23:58                             ` Stan Hoeppner
2011-09-26 10:51                               ` David Brown
2011-09-26 19:52                                 ` Stan Hoeppner
2011-09-26 20:29                                   ` David Brown
2011-09-26 23:28                                   ` Krzysztof Adamski
2011-09-27  3:53                                     ` Stan Hoeppner
2011-09-24 17:48                   ` Thomas Fjellstrom
2011-09-24  5:59             ` Mikael Abrahamsson
2011-09-24 17:53               ` Thomas Fjellstrom
2011-09-25 18:07           ` Robert L Mathews
2011-09-26  6:08             ` Mikael Abrahamsson
2011-09-26  2:26           ` Krzysztof Adamski
2011-09-23  5:11     ` NeilBrown
2011-09-23  5:22       ` Thomas Fjellstrom
2011-09-23  8:09         ` Thomas Fjellstrom
2011-09-23  9:15           ` NeilBrown
2011-09-23 16:26             ` Thomas Fjellstrom
2011-09-25  9:37               ` NeilBrown
2011-09-24 21:57             ` Aapo Laine
2011-09-25  9:18               ` Kristleifur Daðason
2011-09-25 10:10               ` NeilBrown
2011-10-01 23:21                 ` Aapo Laine
2011-10-02 17:00                   ` Aapo Laine
2011-10-05  2:13                     ` NeilBrown
2011-10-05  2:06                   ` NeilBrown
2011-11-05 12:17                 ` Alexander Lyakas
2011-11-06 21:58                   ` NeilBrown

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20110923143210.583e11ec@notabene.brown \
    --to=neilb@suse.de \
    --cc=linux-raid@vger.kernel.org \
    --cc=tfjellstrom@shaw.ca \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.