On 31/01/2011 23:38, Phillip Susi wrote:

On 1/31/2011 5:08 PM, Jon Nelson wrote:

quoted

I operate (and have done so for a long time) a raid10,f2 on two drives.
What makes you think it wants at least 3?

Neat, I thought I tried that the other day and it complained that raid 5
and 6 ( sic ) need at least 3 drives.  Seemed like it was just a bug or
oversight.

raid5 needs at least 3 disks to make sense (raid5 with 2 disks is the 
same as raid1), while raid6 needs at least 4 disks.  But mdadm raid10 
needs only two disks.