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Old 12-10-2008, 12:39 PM   #1
Registered: Dec 2008
Distribution: Ubuntu 8.10
Posts: 35

Rep: Reputation: 15
mdadm: metadata format 00.90 unknown, ignored.

I created a RAID 5 array on my Ubuntu 8.10 box using this guide:

When I run "mdadm --monitor --scan" I get:
mdadm: metadata format 00.90 unknown, ignored.
I checked my mdadm.conf file and it looks like this:
# mdadm.conf
# Please refer to mdadm.conf(5) for information about this file.

# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
DEVICE partitions
ARRAY /dev/md0 level=raid5 num-devices=3 metadata=00.90 UUID=13f95aef:9c364189:75b10d3a:87a53e2f

# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes

# automatically tag new arrays as belonging to the local system
HOMEHOST <system>

# instruct the monitoring daemon where to send mail alerts

# definitions of existing MD arrays

# This file was auto-generated on Sat, 06 Dec 2008 00:02:16 -0500
# by mkconf $Id$
If I remove "metadata=00.90" from the "DEVICE partitions" section this notice goes away, but I don't want to remove it if it is supposed to be there...

Any advice on what I should do?

p.s. Here are the results of "sudo mdadm --detail /dev/md0"
mdadm: metadata format 00.90 unknown, ignored.
        Version : 00.90
  Creation Time : Sat Dec  6 00:18:17 2008
     Raid Level : raid5
     Array Size : 488391808 (465.77 GiB 500.11 GB)
  Used Dev Size : 244195904 (232.88 GiB 250.06 GB)
   Raid Devices : 3
  Total Devices : 3
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Wed Dec 10 13:35:08 2008
          State : clean
 Active Devices : 3
Working Devices : 3
 Failed Devices : 0
  Spare Devices : 0

         Layout : left-symmetric
     Chunk Size : 64K

           UUID : 13f95aef:9c364189:75b10d3a:87a53e2f (local to host Unicorn-NAS)
         Events : 0.10

    Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       1       8       17        1      active sync   /dev/sdb1
       2       8       49        2      active sync   /dev/sdd1
Old 12-10-2008, 05:04 PM   #2
Registered: Dec 2008
Distribution: Ubuntu 8.10
Posts: 35

Original Poster
Rep: Reputation: 15
Solution Found:


error, mdadm

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