mdadm oddities on my raid 5

Bogus8 · 10-11-2010, 07:59 PM

So, I just rebuilt my raid 5 from a failed drive. When checking out the failed raid I noticed something but thought it might go away after fixing it (replacing the drive). But after I was done I checked it again and still have the oddity.

Code:

sudo mdadm --detail /dev/md0
/dev/md0:
        Version : 00.90.03
  Creation Time : Fri Sep 19 13:36:00 2008
     Raid Level : raid5
     Array Size : 1465151808 (1397.28 GiB 1500.32 GB)
  Used Dev Size : 488383936 (465.76 GiB 500.11 GB)
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Mon Oct 11 19:54:41 2010
          State : clean
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0

         Layout : left-symmetric
     Chunk Size : 64K

           UUID : 74d12e38:4e365617:337bb8aa:cdc2baf6 (local to host TheSun)
         Events : 0.2737608

    Number   Major   Minor   RaidDevice State
       0       8       17        0      active sync   /dev/sdb1
       1       8       65        1      active sync   /dev/sde1
       2       8       49        2      active sync   /dev/sdd1
       3       8        1        3      active sync

No, the copy/paste wasn't truncated... Drive number "3" has no /dev id listed (should be /dev/sda1).

What gives? Should I be concerned?

Bogus8 · 10-12-2010, 09:20 AM

bump for the AM people.

Bogus8 · 10-14-2010, 10:44 AM

So no one else has seen this problem?

Noway2 · 10-14-2010, 11:44 AM

I haven't see this problem on my own system, but I am running a raid 1, not raid 5. Do you have a /dev/sda or /dev/sda1 listed (in the /dev) directory?
I don't know if you should be concerned or not, but other than not listing this device, all the other indications are that the array is working.

Bogus8 · 10-15-2010, 10:36 PM

Noway2, Yep it shows up, it shows up in fdisk -l. Just not in mdadm for some reason.