Command powermt for EMC storage inside Linux
Lesson 1
# powermt display
Symmetrix logical device count=0
CLARiiON logical device count=14
=====================================================
—– Host Bus Adapters ——— —— I/O Paths —– —— Stats —–
### HW Path Summary Total Dead IO/Sec Q-IOs Errors
=====================================================
^^^ 1 lpfc ^^ optimal ^ 28 ^^ 0 ^^ - ^^^ 0 ^^^ 0
^^^ 2 lpfc ^^ optimal ^ 28 ^^ 0 ^^ - ^^^ 0 ^^^ 0
Symmetrix logical device count=0
CLARiiON logical device count=14
=====================================================
—– Host Bus Adapters ——— —— I/O Paths —– —— Stats —–
### HW Path Summary Total Dead IO/Sec Q-IOs Errors
=====================================================
^^^ 1 lpfc ^^ optimal ^ 28 ^^ 0 ^^ - ^^^ 0 ^^^ 0
^^^ 2 lpfc ^^ optimal ^ 28 ^^ 0 ^^ - ^^^ 0 ^^^ 0
-It shows 2 HBA card connected to this server from clarion with 14 LUN. If you can see there is 0 errors/dead, so means here each LUN is good connectivity condition to the array or switch.
Lesson 2
# powermt display dev=all
Pseudo name=XXXXXX
CLARiiON ID=APM00000000005 [XXXXX]
Logical device ID=600601607906DD7D5DDBD911 [XXXXX]
state=alive; policy=CLAROpt; priority=0; queued-IOs=0
Owner: default=SP A, current=SP A
===================================================
—————- Host ————— - Stor - — I/O Path - — Stats —
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
===================================================
^^^ 2 lpfc ^^ sdae ^ SP A3 active alive ^^ 0 ^^ 0
^^^ 2 lpfc ^^ sdak ^ SP B2 active alive ^^ 0 ^^ 0
^^^ 1 lpfc ^^ sdc ^ SP A0 active alive ^^ 0 ^^ 0
^^^ 1 lpfc ^^ sdi ^ SP B1 active alive ^^ 0 ^^ 0
Pseudo name=XXXXXX
CLARiiON ID=APM00000000005 [XXXXX]
Logical device ID=600601607906DD7D5DDBD911 [XXXXX]
state=alive; policy=CLAROpt; priority=0; queued-IOs=0
Owner: default=SP A, current=SP A
===================================================
—————- Host ————— - Stor - — I/O Path - — Stats —
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
===================================================
^^^ 2 lpfc ^^ sdae ^ SP A3 active alive ^^ 0 ^^ 0
^^^ 2 lpfc ^^ sdak ^ SP B2 active alive ^^ 0 ^^ 0
^^^ 1 lpfc ^^ sdc ^ SP A0 active alive ^^ 0 ^^ 0
^^^ 1 lpfc ^^ sdi ^ SP B1 active alive ^^ 0 ^^ 0
-It shows more details of the HBA card and LUN (4 path), all working fine without no errors.
