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From: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
To: Michael Evans <mjevans1983@gmail.com>
Cc: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>,
	linux-raid@vger.kernel.org
Subject: Re: Device role question
Date: Sat, 27 Feb 2010 10:10:27 +0100	[thread overview]
Message-ID: <20100227091027.GA3510@lazy.lzy> (raw)
In-Reply-To: <4877c76c1002270055o2ebc038ag52e0b9a8f5b407d@mail.gmail.com>

Hi,

> Ok, please run this for each disk in the array:
> 
> mdadm --examine /dev/(DEVICE)
> 
> The output would be most readable if you did each array's devices in
> order, and you can list them on the same command (- - examine takes
> multiple inputs)
> 
> If you still think the situation isn't as I described above, post the results.

Well, here it is:

$> mdadm -E /dev/sd[ab]2
/dev/sda2:
          Magic : a92b4efc
        Version : 1.1
    Feature Map : 0x1
     Array UUID : 54db81a7:b47e9253:7291055e:4953c163
           Name : lvm
  Creation Time : Fri Feb  6 20:17:13 2009
     Raid Level : raid10
   Raid Devices : 2

 Avail Dev Size : 624928236 (297.99 GiB 319.96 GB)
     Array Size : 624928000 (297.99 GiB 319.96 GB)
  Used Dev Size : 624928000 (297.99 GiB 319.96 GB)
    Data Offset : 264 sectors
   Super Offset : 0 sectors
          State : clean
    Device UUID : 8f6cd2c4:0efc8286:09ec91c6:bc5014bf

Internal Bitmap : 8 sectors from superblock
    Update Time : Sat Feb 27 10:08:22 2010
       Checksum : 1703ded0 - correct
         Events : 161646

         Layout : far=2
     Chunk Size : 64K

   Device Role : spare
   Array State : AA ('A' == active, '.' == missing)
/dev/sdb2:
          Magic : a92b4efc
        Version : 1.1
    Feature Map : 0x1
     Array UUID : 54db81a7:b47e9253:7291055e:4953c163
           Name : lvm
  Creation Time : Fri Feb  6 20:17:13 2009
     Raid Level : raid10
   Raid Devices : 2

 Avail Dev Size : 624928236 (297.99 GiB 319.96 GB)
     Array Size : 624928000 (297.99 GiB 319.96 GB)
  Used Dev Size : 624928000 (297.99 GiB 319.96 GB)
    Data Offset : 264 sectors
   Super Offset : 0 sectors
          State : clean
    Device UUID : 6e2763b5:9415b181:e41a9964:b0c21ca6

Internal Bitmap : 8 sectors from superblock
    Update Time : Sat Feb 27 10:08:22 2010
       Checksum : 87d25401 - correct
         Events : 161646

         Layout : far=2
     Chunk Size : 64K

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

And the details too:

$> mdadm -D /dev/md1
/dev/md1:
        Version : 1.1
  Creation Time : Fri Feb  6 20:17:13 2009
     Raid Level : raid10
     Array Size : 312464000 (297.99 GiB 319.96 GB)
  Used Dev Size : 312464000 (297.99 GiB 319.96 GB)
   Raid Devices : 2
  Total Devices : 2
    Persistence : Superblock is persistent

  Intent Bitmap : Internal

    Update Time : Sat Feb 27 10:09:24 2010
          State : active
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

         Layout : far=2
     Chunk Size : 64K

           Name : lvm
           UUID : 54db81a7:b47e9253:7291055e:4953c163
         Events : 161646

    Number   Major   Minor   RaidDevice State
       0       8       18        0      active sync   /dev/sdb2
       2       8        2        1      active sync   /dev/sda2

bye,

-- 

piergiorgio

  reply	other threads:[~2010-02-27  9:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-26 14:23 Device role question Piergiorgio Sartor
2010-02-27  5:56 ` Michael Evans
2010-02-27  8:08   ` Piergiorgio Sartor
2010-02-27  8:55     ` Michael Evans
2010-02-27  9:10       ` Piergiorgio Sartor [this message]
2010-02-28  3:34         ` Michael Evans
2010-02-28 10:38           ` Piergiorgio Sartor
2010-02-28  4:41         ` Neil Brown
2010-02-28 10:35           ` Piergiorgio Sartor

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