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Special Forums Hardware Filesystems, Disks and Memory Help needed! Raid 5 failure on a Debian System Post 302792705 by jonlisty on Thursday 11th of April 2013 12:43:02 AM
Old 04-11-2013
Help needed! Raid 5 failure on a Debian System

Hello!

I have a 4-disc Raid 5 server running Open Media Vault (Debian). The other day, it disappeared from OMV, which was reporting 3 drives failed. Panic Stations. However, using MDADM I can get info from 3 of the drives which suggests they are functioning ok (info below). The remaining 4th drive doesn't give anything back via mdadm --examine. Any ideas how I can rebuild the drive without destroying the data? According to what I have read, as the three apparently working drives all have the same events number (103), it is fairly likely the data is intact on them - but how to I rebuild?

Thanks my lovelies!

Jon

/dev/sdf:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : dc344271:82f55bd0:fcfd0e16:a2a60bc8
Name : TTVServer:TTV2 (local to host TTVServer)
Creation Time : Mon Jan 7 11:03:39 2013
Raid Level : raid5
Raid Devices : 4

Avail Dev Size : 5860531120 (2794.52 GiB 3000.59 GB)
Array Size : 17581590528 (8383.56 GiB 9001.77 GB)
Used Dev Size : 5860530176 (2794.52 GiB 3000.59 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : c792c6b2:78fd4e78:e4f008ea:826e25e8

Update Time : Sat Apr 6 13:17:10 2013
Checksum : 30386dbe - correct
Events : 103

Layout : left-symmetric
Chunk Size : 512K

Device Role : Active device 0
Array State : AAAA ('A' == active, '.' == missing)


/dev/sdg:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : dc344271:82f55bd0:fcfd0e16:a2a60bc8
Name : TTVServer:TTV2 (local to host TTVServer)
Creation Time : Mon Jan 7 11:03:39 2013
Raid Level : raid5
Raid Devices : 4

Avail Dev Size : 5860531120 (2794.52 GiB 3000.59 GB)
Array Size : 17581590528 (8383.56 GiB 9001.77 GB)
Used Dev Size : 5860530176 (2794.52 GiB 3000.59 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : c0426118:614cb315:15c9a0ee:2ad88e26

Update Time : Sat Apr 6 13:17:10 2013
Checksum : 7638ae70 - correct
Events : 103

Layout : left-symmetric
Chunk Size : 512K

Device Role : Active device 1
Array State : AAAA ('A' == active, '.' == missing)



/dev/sdi:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : dc344271:82f55bd0:fcfd0e16:a2a60bc8
Name : TTVServer:TTV2 (local to host TTVServer)
Creation Time : Mon Jan 7 11:03:39 2013
Raid Level : raid5
Raid Devices : 4

Avail Dev Size : 5860531120 (2794.52 GiB 3000.59 GB)
Array Size : 17581590528 (8383.56 GiB 9001.77 GB)
Used Dev Size : 5860530176 (2794.52 GiB 3000.59 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : 8a96d5fe:594418b6:c63dafd0:c459e498

Update Time : Sat Apr 6 13:17:10 2013
Checksum : 5175f080 - correct
Events : 103

Layout : left-symmetric
Chunk Size : 512K

Device Role : Active device 2
Array State : AAAA ('A' == active, '.' == missing)
 

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Debian::Copyright::Stanza::License(3pm) 		User Contributed Perl Documentation		   Debian::Copyright::Stanza::License(3pm)

NAME
Debian::Copyright::Stanza::License - License stanza of Debian copyright file VERSION
This document describes Debian::Copyright::Stanza::License version 0.1 . SYNOPSIS
my $copy = Debian::Copyright::Stanza::License->new(\%data); print $copy; # auto-stringification DESCRIPTION
Debian::Copyright::Stanza::License can be used for representation and manipulation of a "License:" stanza of Debian copyright files in an object-oriented way. Converts itself to a textual representation in string context. FIELDS
The supported fields for License stanzas are listed below. Note that real copyright fields may contain dashes in their names. These are replaced with underscores. License CONSTRUCTOR
new new( { field => value, ... } ) Creates a new Debian::Copyright::Stanza::License object and optionally initialises it with the supplied data. SEE ALSO
Debian::Copyright::Stanza::License inherits most of its functionality from Debian::Copyright::Stanza COPYRIGHT &; LICENSE Copyright (C) 2011 Nicholas Bamber nicholas@periapt.co.uk This module is substantially based upon Debian::Control::Stanza::Source. Copyright (C) 2009 Damyan Ivanov dmn@debian.org This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. perl v5.12.4 2011-08-27 Debian::Copyright::Stanza::License(3pm)
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