I have always really liked the AIX sddpcm mulitpathing software. It is easy to use, and easy to gather information from. However, one thing I have wanted to do in the past is run a command that just shows the hdisk device and the corresponding SAN serial number.
The closest thing SDDPCM has to this is the "pcmpath query device" command which shows a bunch of information for each SAN LUN:
DEV#: 0 DEVICE NAME: hdisk1 TYPE: 2145 ALGORITHM: ... [More]