Quote:
As you can see my root file system is pointing to /dev/md/dsk/d0 and I think this is a mirror device (to /dev/rdsk/c0t0d0s0).
There is nothing suggesting that it is a mirror device to c0t0d0s0 - you need to use the metastat command or look at the config files to find out what mirrors are involved.
/usr/sbin/metastat (see the man page for options)