Couple of nice commands, hope this helps someone.
root@vps2:/# /usr/sbin/cfgadm -al -s "select=type(disk),cols=ap_id:info"
Ap_Id Information
c0::dsk/c0t8d0 LSILOGIC Logical Volume
c0::dsk/c0t15d0 SEAGATE ST914602SSUN146G
c0::dsk/c0t16d0 SEAGATE ST914602SSUN146G
c0::dsk/c0t18d0 HITACHI H101414SCSUN146G
c0::dsk/c0t19d0 HITACHI H101414SCSUN146G
root@vps2:/#
OR
root@vps1:~# /usr/sbin/raidctl -l
Controller: 7
Disk: 0.0.0
Disk: 0.1.0
Disk: 0.2.0
Disk: 0.3.0
Disk: 0.4.0
Disk: 0.5.0
root@vps1:~# raidctl -l -g 0.2.0 7
Disk Vendor Product Firmware Capacity Status HSP
----------------------------------------------------------------------------
0.2.0 SEAGATE ST973401LSUN72G 0556 68.3G GOOD N/A
root@vps1:~#
You can of course get all of this using prtconf -v as well.