[BlueOnyx:14243] Re: Making a single disk install into a RAID1 pair

Michael Stauber mstauber at blueonyx.it
Wed Jan 8 12:32:22 PET 2014


Hi Neil,

> When I installed BO on my machine (5107), I only had one disk to hand (I 
> thought I had 2, but couldn't find the second one!!) so did an install to 
> the single disk...    
> 
> Subsequently I've obtained a second disk of the same type/model and would like     
> to make the disks into a RAID-1 (mirrored) pair.    
> 
> What's the best way to do this? 

Best way is to not do it - unless you're prepared to do a reinstall.

As was already pointed out: If it's a production server, then even if
all goes well you're looking at this: You need physical access to the
server, need half a day downtime, multiple reboots with and without a
rescue CD and all things considered the procedure would require fairly
solid Linux knowledge.

I wouldn't trust "a script that you can download somewhere" to do the
job. Maybe it works, maybe not. If it doesn't, you're in a world of pain
and most likely have to reinstall off the CD anyway.

So yeah, it *can* be done, but I wouldn't touch it with a pitchfork. :-)

-- 
With best regards

Michael Stauber



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