RSYNC Fedora

Scott Burns scott at
Wed Nov 26 06:11:36 UTC 2003

Eric J. Feldhusen wrote:

> On Nov 25, 2003, at 9:40 PM, Scott Burns wrote:
>> Eric J. Feldhusen wrote:
>>> A computer with 4 - 100GB hard drives in a RAID 5 (parity) set up, 3 
>>> drives are active in the RAID 5, 1 hot spare drive, Total storage 
>>> 200GB, actually a little less due to overhead. In this 
>>> configuration, one of the drives in the raid fails, the hot spare 
>>> becomes active, the raid rebuilds, and you replace the dead drive 
>>> with a fresh drive and this drive becomes the hot spare.  In this 
>>> case, you can have 2 drives fail and the system can keep going.
>> Same deal as above, what happens if a second drive fails during rebuild?
> I haven't had it happen yet, but "in theory", with the setup above, it 
> "should" continue to work, but you're really want to get another 
> couple drives in that machine fast.
You might want to give this a try if you have a spare machine available. 
 Fedora + software raid to make a 5 odd partition RAID5 set and then 
kill one partition.  Midway through the rebuild with a hot spare, kill 
another partition.  I'm certain that if RAID5 loses two of it's disks at 
the same time, it's gone.

Scott Burns
Mirrabooka Systems

Tel +61 7 3857 7899
Fax +61 7 3857 1368 

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