Re: How many drives are bad?

Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> · Tue, 19 Feb 2008 13:33:20 -0500 (EST)

Neil,

Is this a bug?

Also, I have a question for Norman-- how come your drives are sda[a-z]1? 
Typically it is /dev/sda1 /dev/sdb1 etc?

Justin.

On Tue, 19 Feb 2008, Norman Elton wrote:

But why do two show up as "removed"?? I would expect /dev/sdal1 to show up 
someplace, either active or failed.

Any ideas?

Thanks,

Norman

On Feb 19, 2008, at 12:31 PM, Justin Piszcz wrote:

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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