topic Re: Pseudo name in EMCPP in Operating System - HP-UX

Pseudo name in EMCPP

Bedare Nikhil — Thu, 23 Jul 2009 08:20:48 GMT

Hello everyone,
I have a HP 11.31 machine with emcpp installed.
I have external disks from clariion array.
When i do powermt display dev=all,it shows me the disks without any pseudo name.
This means that the disks are not properly under emcpp control.
Am I missing something here ?

Thanks in advance.

Re: Pseudo name in EMCPP

Michal Kapalka (mikap) — Thu, 23 Jul 2009 08:43:14 GMT

hi,

at first hp in version 11.31 have his own multipathing inside the os.

could you please send the

powermt config

powermt display dev=all

mikap

Re: Pseudo name in EMCPP

Bedare Nikhil — Thu, 23 Jul 2009 09:11:44 GMT

bash-2.02# powermt config
bash-2.02# powermt save
bash-2.02# powermt display dev=all
CLARiiON ID=CK200080300686 [labshpia03]
Logical device ID=60060160D3011F008249BD40766CDE11 [LUN 202]
state=alive; policy=BasicFailover; priority=0; queued-IOs=0
Owner: default=SP A, current=SP B Array failover mode: 1
==============================================================================
---------------- Host --------------- - Stor - -- I/O Path - -- Stats ---
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
==============================================================================
3 0/4/1/1.1.23.255.0.0.0 c3t0d0 SP B1 active alive 0 0
4 0/4/1/1.1.22.255.0.0.0 c4t0d0 SP A1 active alive 0 0

CLARiiON ID=CK200080300686 [hostname]
Logical device ID=60060160D3011F008349BD40766CDE11 [LUN 203]
state=alive; policy=BasicFailover; priority=0; queued-IOs=0
Owner: default=SP A, current=SP B Array failover mode: 1
==============================================================================
---------------- Host --------------- - Stor - -- I/O Path - -- Stats ---
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
==============================================================================
3 0/4/1/1.1.23.255.0.0.1 c3t0d1 SP B1 active alive 0 0
4 0/4/1/1.1.22.255.0.0.1 c4t0d1 SP A1 active alive 0 0
===============================================

If you see the above output,there is no pseudo name.

Thanks.

Re: Pseudo name in EMCPP

Michal Kapalka (mikap) — Thu, 23 Jul 2009 09:29:09 GMT

hi,

check this link from HP :

http://docs.hp.com/en/MassStorageStack/The_Next_Generation_Mass_Storage_Stack.pdf

it about multipath operation on HP-UX 11.31

mikap

Re: Pseudo name in EMCPP

Michal Kapalka (mikap) — Thu, 23 Jul 2009 09:47:22 GMT

hi

check this section in the document :

Disabling Multi-Pathing on Legacy DSFs

mikap