Re: Raid1 mdadm: RAID1 error: mdadm: No super block found on ...

From: Reinhard Sy (reinhard_at_meinberlikomm.de)
Date: 05/05/04

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    To: For users of Fedora Core releases <fedora-list@redhat.com>
Date: Wed, 05 May 2004 09:13:05 +0200

    Thanks,
    sorry that I does not read the manpage - carefully.

    What does :

    State: dirty, no erros
    mean ?
    [root@muckla root]# mdadm -E /dev/hda1
    /dev/hda1:
              Magic : a92b4efc
            Version : 00.90.00
               UUID : 1628b05f:8e582771:6bc25a99:b080ab1f
      Creation Time : Sun May 2 21:53:46 2004
         Raid Level : raid1
        Device Size : 4882624 (4.66 GiB 4.100 GB)
       Raid Devices : 2
      Total Devices : 2
    Preferred Minor : 0

        Update Time : Mon May 3 05:49:54 2004
              State : dirty, no-errors
     Active Devices : 2
    Working Devices : 2
     Failed Devices : 0
      Spare Devices : 0
           Checksum : eb64d179 - correct
             Events : 0.13

          Number Major Minor RaidDevice State
    this 0 3 1 0 active sync /dev/hda1
       0 0 3 1 0 active sync /dev/hda1
       1 1 22 1 1 active sync /dev/hdc1
    [root@muckla root]#

    Thanks
    Reinhard

    On Wed, 2004-05-05 at 01:39, Christopher K. Johnson wrote:
    > Reinhard Sy wrote:
    >
    > >Hi
    > >
    > >I have now set my RAID1 but if I use :
    > >
    > >[root@muckla root]# mdadm -E /dev/md0
    > >mdadm: No super block found on /dev/md0 (Expected magic a92b4efc, got
    > >00000000)
    > >
    > From man mdadm
    > " -E, --examine
    > Print content of md superblock on device(s).
    > ...
    > --examine
    > The device should be a component of an md array. "
    >
    > So you should be trying mdadm -E /dev/hda1
    >
    > --
    > -----------------------------------------------------------
    > "Spend less! Do more! Go Open Source..." -- Dirigo.net
    > Chris Johnson, RHCE #807000448202021 

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