On Mon, Dec 20, 1999 at 08:49:42AM +0900, Makoto Kurokawa wrote:
>
>
> Hello, All.
>
> I have a trouble of HDD fail of raid-5,raid-0.90 on Redhat 6.0.
>
> Raid-5 is now working on degrade mode.
> Exactly, Iacan't repair or replace the failed HDD (to new HDD).
> Woule you tell me how to do recovery it?
>
> "/proc/mdstat" is as follows:
>
> [root@oem /root]# cat /proc/mdstat
> Personalities : [raid5]
> read_ahead 1024 sectors
> md0 : active raid5 sdm1[11] sdl1[10] sdk1[9] sdj1[8] sdi1[7] sdh1[6] sdg1[5]
> sdf1[4] sde1[3] sdd1[2] sdc1[1] 97192128 blocks level 5, 4k chunk, algorithm 2
> [12/11] [_UUUUUUUUUUU]
> unused devices: <none>
> First, I restarted the PC and tryed "raidhotadd" and "raidhotremove" ,the
> result is as fllows:
>
> [root@oem /root]# raidhotadd /dev/md0 /dev/sdb1
> /dev/md0: can not hot-add disk: disk busy!
>
> [root@oem /root]# raidhotremove /dev/md0 /dev/sdb1
> /dev/md0: can not hot-remove disk: disk not in array!
>
Ok, so it's /dev/sdb1 allright.
>
> Next, I replaced HDD,/dev/sdb to new HDD, the result, system hung-up on boot
> time.
Are you *SURE* that you assigned the same SCSI ID to the new disk ?
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