> 2) in the mirror case the write speed is cut by half, and the read > speed is the same as a single disk. I'd expect about twice the > performance for both reading and writing, maybe a bit less, but > definitely more than measured.
I wouldn't expect mirrored read to be faster than single-disk read, because the individual disks would need to read small chunks of data with holes in-between. Regardless of the holes being read or not, the disk will spin at the same speed. _______________________________________________ zfs-discuss mailing list firstname.lastname@example.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss