[CentOS] Re: Major problem with software raid

Scott Silva ssilva at sgvwater.com
Fri Jul 27 03:41:57 UTC 2007

ajulvestad spake the following on 7/26/2007 8:32 PM:
> Steven Haigh writes:
>> Quoting ajulvestad <ajulvestad at n4f.no>:
>>> Johnny Hughes writes:
>>>> ajulvestad wrote:
>>>>> Ok, this is the case: I've got two raid-5 arrays with software  
>>>>> raid, both with three disks.
>>>>> Setup:
>>>>> md0 has hdb2, hdd1 and sda1
>>>>> md1 has hdb5, hdd3 and sda3
>> *snip*
>>> Thank you for the URL, but I have already seen the howto. Running
>>> mdadm --assemble --force only provides the message that there is only
>>> one disk available. So what I'm looking for is a way to tell mdadm
>>> exactly what devices to use for the array.
>> Silly question, but can the system see sda, hdb & hdd?
>> can you see anything from "fdisk -l /dev/sda" - the same for hdb and hdd?
> Yes, the partitions are all there. The files on the URL are all from the
> system at the moment. And fdisk is listing all the partitions as well.
Try something like mdadm --assemble --run --force --update=summaries
/dev/raidarray /dev/firstpart /dev/2ndpart /dev/3rdpart
Substitute your actual parameters

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