[WBEL-users] RAID problem - Solved

[Simone]

Well, I was able to mount /dev/hda2 and save data. Then I had to mkraid 
/dev/md2, run mke2fs, remount raid, copy data back and it worked. The 
server is up and running.
I am still wondering however, if there's a way to trick the system and 
specify to start raid considering one dev the fresher one even if it was 
marked faulty. Mean, hda2 fails and it is marked faulty, but I still 
want to run raid considering hda2 the disk with the good data and start 
reconstructing the raid from hda2 to the other member.

I don´t think I´ve expressed myself clearly (enough), but I tried my best :)

Have a great weekend


Simone wrote:

> Simone wrote:
> Just for you to know, it didn't work. dd if=/dev/hda2 of=/dev/hdc2, 
> then tried to raidstart /dev/md2, it won't start.
>
> Cheers
>
>> Hi list, I am having the following problem on one of the servers. Due 
>> to a IDE controller malfunctioning on the mobo, my partition 
>> /dev/hdc2 part of a software raid 1, disappeared. Went down in the 
>> server room, rebooted, readded the hdc2 to the array, started rebuild 
>> process, but when it was almost done the /dev/hda2 partition 
>> disappeared from the system. So now I probably have usable data on 
>> the hda2 partition, but this is set as the faulty one of the raid, so 
>> I cannot run a raidhotadd otherwise the useless data on hdc2 will 
>> overwrite the hopefully good ones on hda2. This is the situation if I 
>> start the raid:
>>
>> md2 : active raid1 hdc2[1]
>>      4915776 blocks [2/1] [_U]
>>
>> Tried to raidhotremove hdc but it won't let me, tried to 
>> raidsetfaulty hdc, no success. The only thing I can think of right 
>> now is to stop md2, then dd all the datas from hda to hdc restart md2 
>> and see if it works. I thought perhaps there's a way to tell raid to 
>> start md2 using just hda2.
>>
>> I will be looking for an answer on the net, meanwhile if you have any 
>> suggestion to get the server up and running I would be very grateful.
>>
>> Thanks, Simone
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>
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