[linux] Chybny disk v RAID - ako najst pricinu resp. chybny sektor

[patrik na foral.sk]

Ahoj,
Mam problem s diskom v RAID1, padol mi do degradovaneho rezimu, no 
neviem ako overit ci je to zrele na reklamaciu disku. Nasiel som, ze 
by to malo ist prikazom fschk alebo e2fsck, no chce to single user 
mod. Neda sa to spravit za chodu systemu? Predpokladam, ze bude treba 
particiu odstranit z diskoveho pola, primontovat len na citanie a 
spustit kontrolu.

Zalohu a nahradny disk samozrejme mam, no neviem posudit, ci je disk 
naozaj chybny a teda zrely na reklamaciu (vymenu). Pri znovupridani 
disku do pola sa to zosynchronizovalo a frci to zda sa bezproblemovo 
- vid vypis nizsie. Dik za info.

---------------------8<------------------
 > mdadm --detail /dev/md0
/dev/md0:
         Version : 00.90.03
   Creation Time : Tue Dec  2 11:20:35 2008
      Raid Level : raid1
      Array Size : 4192832 (4.00 GiB 4.29 GB)
     Device Size : 4192832 (4.00 GiB 4.29 GB)
    Raid Devices : 2
   Total Devices : 2
Preferred Minor : 0
     Persistence : Superblock is persistent

     Update Time : Thu May  7 10:15:39 2009
           State : active, degraded
  Active Devices : 1
Working Devices : 1
  Failed Devices : 1
   Spare Devices : 0

            UUID : 7e264bc6:cbd39c1f:c230666b:5103eba0
          Events : 0.521971

     Number   Major   Minor   RaidDevice State
        0       0        0        0      removed
        1       8        1        1      active sync   /dev/sda1

        2       8       17        -      faulty spare   /dev/sdb1
 > mdadm /dev/md0 -f /dev/sdb1
mdadm: set /dev/sdb1 faulty in /dev/md0
 > mdadm --detail /dev/md0
/dev/md0:
         Version : 00.90.03
   Creation Time : Tue Dec  2 11:20:35 2008
      Raid Level : raid1
      Array Size : 4192832 (4.00 GiB 4.29 GB)
     Device Size : 4192832 (4.00 GiB 4.29 GB)
    Raid Devices : 2
   Total Devices : 2
Preferred Minor : 0
     Persistence : Superblock is persistent

     Update Time : Thu May  7 10:31:32 2009
           State : clean, degraded
  Active Devices : 1
Working Devices : 1
  Failed Devices : 1
   Spare Devices : 0

            UUID : 7e264bc6:cbd39c1f:c230666b:5103eba0
          Events : 0.522314

     Number   Major   Minor   RaidDevice State
        0       0        0        0      removed
        1       8        1        1      active sync   /dev/sda1

        2       8       17        -      faulty spare   /dev/sdb1
 > mdadm /dev/md0 -r /dev/sdb1
mdadm: hot removed /dev/sdb1
 > mdadm --detail /dev/md0
/dev/md0:
         Version : 00.90.03
   Creation Time : Tue Dec  2 11:20:35 2008
      Raid Level : raid1
      Array Size : 4192832 (4.00 GiB 4.29 GB)
     Device Size : 4192832 (4.00 GiB 4.29 GB)
    Raid Devices : 2
   Total Devices : 1
Preferred Minor : 0
     Persistence : Superblock is persistent

     Update Time : Thu May  7 10:32:23 2009
           State : active, degraded
  Active Devices : 1
Working Devices : 1
  Failed Devices : 0
   Spare Devices : 0

            UUID : 7e264bc6:cbd39c1f:c230666b:5103eba0
          Events : 0.522341

     Number   Major   Minor   RaidDevice State
        0       0        0        0      removed
        1       8        1        1      active sync   /dev/sda1
 > mdadm /dev/md0 -a /dev/sdb1
mdadm: re-added /dev/sdb1
 > mdadm --detail /dev/md0
/dev/md0:
         Version : 00.90.03
   Creation Time : Tue Dec  2 11:20:35 2008
      Raid Level : raid1
      Array Size : 4192832 (4.00 GiB 4.29 GB)
     Device Size : 4192832 (4.00 GiB 4.29 GB)
    Raid Devices : 2
   Total Devices : 2
Preferred Minor : 0
     Persistence : Superblock is persistent

     Update Time : Thu May  7 10:34:23 2009
           State : active
  Active Devices : 2
Working Devices : 2
  Failed Devices : 0
   Spare Devices : 0

            UUID : 7e264bc6:cbd39c1f:c230666b:5103eba0
          Events : 0.522393

     Number   Major   Minor   RaidDevice State
        0       8       17        0      active sync   /dev/sdb1
        1       8        1        1      active sync   /dev/sda1


-- 
Patrik Jan (pa3k)