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ColdDoT 29th October 2006 19:06

Raid rebuilding
 
Hello again (after big server crash)

i have taken a relook to my raid system.

this is in fstab
Code:

proc            /proc          proc    defaults        0      0
/dev/hde1      /              ext3    defaults,errors=remount-ro,usrquota,grpquota 0      1
/dev/hdc2      /boot          ext3    defaults        0      2
/dev/md0        /var            ext3    defaults        0      2
/dev/hdc3      none            swap    sw              0      0
/dev/hda        /media/cdrom0  iso9660 ro,user,noauto  0      0

this is when i run mdam
Code:

server:~# mdadm /dev/md1
/dev/md1: 72.64GiB raid1 2 devices, 1 spare. Use mdadm --detail for more detail.
server:~# mdadm /dev/md0
/dev/md0: 64.50GiB raid1 2 devices, 0 spares. Use mdadm --detail for more detail.

The /proc/mdstat file currently contains the following
Code:

Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 ide/host1/bus0/target0/lun0/part4[0]
      67633536 blocks [2/1] [U_]
     
md1 : active raid1 ide/host1/bus1/target0/lun0/part2[0]
      76172096 blocks [2/1] [U_]
     
unused devices: <none>

Detaild output
Code:

/dev/md0:
        Version : 00.90.02
  Creation Time : Wed Jan 18 15:50:39 2006
    Raid Level : raid1
    Array Size : 67633536 (64.50 GiB 69.26 GB)
    Device Size : 67633536 (64.50 GiB 69.26 GB)
  Raid Devices : 2
  Total Devices : 1
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Sun Oct 29 14:38:43 2006
          State : active, degraded
 Active Devices : 1
Working Devices : 1
 Failed Devices : 0
  Spare Devices : 0

          UUID : 9ac9b941:4446a4fa:03a7860f:ebd53b67
        Events : 0.138577

    Number  Major  Minor  RaidDevice State
      0      22        4        0      active sync  /dev/hdc4
      1      0        0        1      removed

Code:

/dev/md1:
        Version : 00.90.00
  Creation Time : Mon Jan 30 16:17:10 2006
    Raid Level : raid1
    Array Size : 76172096 (72.64 GiB 78.00 GB)
    Device Size : 76172096 (72.64 GiB 78.00 GB)
  Raid Devices : 2
  Total Devices : 3
Preferred Minor : 1
    Persistence : Superblock is persistent

    Update Time : Sun Oct 29 14:38:43 2006
          State : active, degraded
 Active Devices : 1
Working Devices : 1
 Failed Devices : 2
  Spare Devices : 1

          UUID : d4d9da1f:2c766230:e2b77d58:31c0828a
        Events : 0.267

    Number  Major  Minor  RaidDevice State
      0      33        2        0      active sync  /dev/hde2
      1      0        0        1      removed

What the hell? now it is sure none of my hardisk are broken right?

Can some 1 help me

Greets ColdDoT

falko 30th October 2006 15:11

Have a look here: http://aplawrence.com/Linux/rebuildraid.html
http://aplawrence.com/Linux/rebuildraid.html
http://www.cyberciti.biz/faq/howto-r...-a-disk-fails/
http://www.howtoforge.com/forums/sho...t=rebuild+raid

ColdDoT 30th October 2006 15:25

WoW my server is more f*cked up then i tought :s

it isn't that big deal because over about 3 weeks i'm gonna redo the whole system

thx for all

ghys 30th October 2006 16:25

thanks for the great links. Very good info in them.
I am still looking for the best all around solution for the system i have to setup.

Either Raid 1 with a spare drive to backup or Raid 5.
I will not duplicate posts since i already asked something in here(another thread).
I will continue looking for the right answer.

thanks again.


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