RAID1 and data safety?

[Molle Bestefich <molle.bestefich@gmail.com>]

Just wondering;

Is there any way to tell MD to do verify-on-write and
read-from-all-disks on a RAID1 array?

I was thinking of setting up a couple of RAID1s with maximum data safety.
I'd like to verify after each write to a disk plus I'd like to read
from all disks and perform data comparison whenever something is read.
 I'd then run a RAID0 over the RAID1 arrays, to regain some of the
speed lost from all of the excessive checking.

Just wondering if it could be done :-).

Apologies if the answer is in the docs.