Getting Serial Number of HP-UX (works on RP5470 - HP11i PA-RISC)

HP-UX 11i is now pretty old but it is surprised that there are still a lot of companies using it. Though it is stable but hardware failure is something unpreventable. Once you found hardware fault, you probably need to call vendors (HP or others) to diagnostics.

A typical question will be "what is your server model? OS? Serial number?" Here is the quick answer:

OS Version: uname -a
Model: model (yes, simple?)
Serial Number: no single command to get it. but the information can be retrieved in cstm:
echo "sel path system\ninfolog\nexit"|cstm|grep "System Serial Number"

eg.
# uname -a
HP-UX zzzzzzzzz B.11.11 U 9000/800 106424635 unlimited-user license
# model
9000/800/L3000-8x
# echo "sel path system\ninfolog\nexit"|cstm|grep "System Serial Number"
   System Serial Number...: xxxxxxxxxx