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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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Chart::Clicker::Data::Series::Size(3pm) 		User Contributed Perl Documentation		   Chart::Clicker::Data::Series::Size(3pm)

NAME
Chart::Clicker::Data::Series::Size - Chart data with additional attributes for Size charts VERSION
version 2.83 SYNOPSIS
use Chart::Clicker::Data::Series::Size; my @keys = (); my @values = (); my @sizes = (); my $series = Chart::Clicker::Data::Series::Size->new({ keys => @keys, values => @values, sizes => @sizes }); DESCRIPTION
Chart::Clicker::Data::Series::Size is an extension of the Series class that provides storage for a third variable called the size. This is useful for the Bubble renderer. ATTRIBUTES
sizes Set/Get the sizes for this series. max_size Gets the largest value from this Series' "sizes". min_size Gets the smallest value from this Series' "sizes". METHODS
add_to_sizes Adds a size to this series. get_size Get a size by it's index. size_count Gets the count of sizes in this series. AUTHOR
Cory G Watson <gphat@cpan.org> COPYRIGHT AND LICENSE
This software is copyright (c) 2012 by Cold Hard Code, LLC. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. perl v5.14.2 2012-06-22 Chart::Clicker::Data::Series::Size(3pm)
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