From mboxrd@z Thu Jan  1 00:00:00 1970
From: Justin Piszcz <jpiszcz@lucidpixels.com>
Subject: Re: How many drives are bad?
Date: Tue, 19 Feb 2008 12:31:23 -0500 (EST)
Message-ID: <alpine.DEB.1.00.0802191231100.25959@p34.internal.lan>
References: <6b3a7f010802190923v6b600fedy2a68ad6797449c6e@mail.gmail.com>
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To: Norman Elton <normelton@gmail.com>
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How many drives actually failed?
> Failed Devices : 1


On Tue, 19 Feb 2008, Norman Elton wrote:

> So I had my first "failure" today, when I got a report that one drive
> (/dev/sdam) failed. I've attached the output of "mdadm --detail". It
> appears that two drives are listed as "removed", but the array is
> still functioning. What does this mean? How many drives actually
> failed?
>
> This is all a test system, so I can dink around as much as necessary.
> Thanks for any advice!
>
> Norman Elton
>
> ====== OUTPUT OF MDADM =====
>
>        Version : 00.90.03
>  Creation Time : Fri Jan 18 13:17:33 2008
>     Raid Level : raid5
>     Array Size : 6837319552 (6520.58 GiB 7001.42 GB)
>    Device Size : 976759936 (931.51 GiB 1000.20 GB)
>   Raid Devices : 8
>  Total Devices : 7
> Preferred Minor : 4
>    Persistence : Superblock is persistent
>
>    Update Time : Mon Feb 18 11:49:13 2008
>          State : clean, degraded
> Active Devices : 6
> Working Devices : 6
> Failed Devices : 1
>  Spare Devices : 0
>
>         Layout : left-symmetric
>     Chunk Size : 64K
>
>           UUID : b16bdcaf:a20192fb:39c74cb8:e5e60b20
>         Events : 0.110
>
>    Number   Major   Minor   RaidDevice State
>       0      66        1        0      active sync   /dev/sdag1
>       1      66       17        1      active sync   /dev/sdah1
>       2      66       33        2      active sync   /dev/sdai1
>       3      66       49        3      active sync   /dev/sdaj1
>       4      66       65        4      active sync   /dev/sdak1
>       5       0        0        5      removed
>       6       0        0        6      removed
>       7      66      113        7      active sync   /dev/sdan1
>
>       8      66       97        -      faulty spare   /dev/sdam1
> -
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