RAID reconstruction

[Phil Bettinson]

Romeo Theriault wrote:
> On Dec 6, 2006, at 1:04 AM, Mathew Snyder wrote:
> 
>> It has become necessary to reconstruct a hardware RAID from level 0 to 
>> level 1.
>>  This is attached to an Intel RAID card.  If I run the reconstruction 
>> will Linux
>> automatically recognize the resized partition or will I completely 
>> bork things.

If you simply do it straight, I would guess that it would horribly bork 
your settings... having said that..... I've managed (by accident, using 
the Megaraid tools on RHEL3 64bit (don't do it, they don't work!))to 
reconfigure a RAID5 array of 6 250GB disks to a RAID 1 Array, and to 
find that Linux was quite happy, and even dealt with the new size. I was 
a little shocked as my main server all of a sudden gained a large amount 
of diskspace, but no redundancy, however.

I don't think I would ADVISE doing it straight. I think if you are going 
to be using a partition that is going to be growing in size you probably 
want to look at creating logical volumes, so you can grow and shrink 
them. Perhaps there's another way to achieve what you need doing?


Thanks,

Phil

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			Phil Bettinson

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Swyddog Gweinyddu Systemau	Systems Administrator

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