[TriLUG] upgrading a software (md) RAID

[Ronald Kelley]

Honestly, I would install the new drives, build the new array, create  
your partitions/filesystems, then rsync the data over.  Let it run for  
a few days before removing the 500G drives just to make sure you don't  
have any hardware problems with the new drives.

Doing the one-by-one approach is time consuming and be fatal if one of  
the new drives is bad.

Hope this helps...


-Ron



On Oct 5, 2009, at 4:06 PM, Charles Mangin wrote:

> i've currently got my home network server running a three drive RAID  
> system. it's running md (software RAID) under Fedora 11.
>
> the drives in there are 500 gigs, and with the prices of 1+ Tb  
> drives coming down so low, i'd like to increase capacity. ideally,  
> i'd like to do it without having to migrate my data to some  
> intermediary device while i build a whole new RAID.
>
> is there a good tutorial (that i've yet to find by googling) that  
> has a good step-by-step on how to do this? the process, as i  
> understand it, is to replace one drive at a time, rebuilding the  
> array each time. once all the larger drives are in place, the final  
> rebuild will show the new capacity. there's bound to be some mdadm  
> fiddling necessary as well...
>
>
>
>
>
> Charles Mangin
> Option8, LLC - Making Macs happy since 1999.
> option8 at option8.com | http://www.option8consulting.com
> mobile: 919.368.7167
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>
>
>
>
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Thanks,

-Ron
rkelleyrtp at gmail.com