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Full Discussion: mdadm question
Top Forums UNIX for Advanced & Expert Users mdadm question Post 302555334 by rmokros on Wednesday 14th of September 2011 12:34:33 PM
Old 09-14-2011
Java mdadm question

Hello, I have 4 drives (500G each) in a raid 10, I got a power failior and this is the result?
Code:
 
 cat /proc/mdstat
Personalities :
md126 : inactive sdb[3] sdc[2] sdd[1] sde[0]
      1953536528 blocks super external:-md127/0
md127 : inactive sdd[3](S) sde[2](S) sdb[1](S) sdc[0](S)
      9028 blocks super external:imsm
unused devices: <none>

dmraid -ay -t
isw_dcdhceeejb_Volume0-0: 0 976768000 mirror core 2 131072 nosync 2 /dev/sdb 0 /dev/sdc 0 1 handle_errors
isw_dcdhceeejb_Volume0-1: 0 976768000 mirror core 2 131072 nosync 2 /dev/sdd 0 /dev/sde 0 1 handle_errors
isw_dcdhceeejb_Volume0: 0 1953536000 striped 2 8 /dev/mapper/isw_dcdhceeejb_Volume0-0 0 /dev/mapper/isw_dcdhceeejb_Volume0-1 0

How to get the RAID up and running again I tried:
Code:
mdadm --assemble -v /dev/md126 /dev/sdb /dev/sdc /dev/sdd /dev/sde --run

but the result was no the expected.

Last edited by Scott; 09-14-2011 at 02:41 PM.. Reason: Code tags
 

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VGIMPORTCLONE(8)                                              System Manager's Manual                                             VGIMPORTCLONE(8)

NAME
vgimportclone - import and rename duplicated volume group (e.g. a hardware snapshot) SYNOPSIS
vgimportclone [-n|--basevgname VolumeGroupName] [-i|--import] PhysicalVolume [PhysicalVolume...] DESCRIPTION
vgimportclone is used to import a duplicated VG (e.g. hardware snapshot). Duplicate VG(s) and PV(s) are not able to be used until they are made to coexist with the origin VG(s) and PV(s). vgimportclone renames the VG associated with the specified PV(s) and changes the associ- ated VG and PV UUIDs. OPTIONS
See lvm for common options. -n|--basevgname VolumeGroupName By default the snapshot VG will be renamed to the original name plus a numeric suffix to avoid duplicate naming (e.g. 'test_vg' would be renamed to 'test_vg1'). This option will override the base VG name that is used for all VG renames. If a VG already exists with the specified name a numeric suffix will be added (like the previous example) to make it unique. -i|--import Import exported Volume Groups. Otherwise VGs that have been exported will not be changed (nor will their associated PVs). ENVIRONMENT VARIABLES
LVM_BINARY The LVM2 binary to use. Defaults to "lvm". EXAMPLES
The origin VG vg00 has origin PVs /dev/sda and /dev/sdb and the respective snapshot PVs are /dev/sdc and /dev/sdd. To rename the VG asso- ciated with /dev/sdc and /dev/sdd from vg00 to vg00_snap (and to change associated VG and PV UUIDs) do: vgimportclone --basevgname vg00_snap /dev/sdc /dev/sdd SEE ALSO
lvm(8) Red Hat, Inc. LVM TOOLS 2.02.95(2) (2012-03-06) VGIMPORTCLONE(8)
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