WipeOut wrote: > Hi, > > Since the data is available in two places on a RAID1 array does the > code in any way make use of that for improved performance by reading > (different) data form both disks at the same time? Or is the one disk > simply a slave that just receives copies of the data and is never > really read from at all? reads are distributed to both drives. the kernel raid implementation is considerably more sophisticated about this than the typical bios/driver based fake raid.