luxadm - administration program for the Sun Enterprise Network Array (SENA), RSM, SPARCstorage Array (SSA) subsystems, and individual Fiber Channel Arbitrated Loop (FC_AL) devices
luxadm probe
... and take the devices, e.g. /dev/rdsk/c4t600A0B800048F380000003DD4BB1FE0Fd0s2, and do
luxadm display /dev/rdsk/c4t600A0B800048F380000003DD4BB1FE0Fd0s2
Other handy commands:
luxadm -e port
Check read access:
dd if=/dev/dsk/c4t600A0B800048F380000003EC4BB30476d0s0 of=/dev/null bs=1024k count=100000
There is an "undocumented" utility: /usr/cluster/lib/sc/scsi
scsi -c inkeys -d /dev/rdsk/<device>
(check keys)
scsi -c scrub -d /dev/rdsk/<device>