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is it possible to disable paths from a particular HBA
RHEL AS 3 update
I have erros reporting from one of the two HBA(two paths). which is causing performance issues. can i disable two paths from that particular HBA?? Need to disable A4&b4 paths only.
I dont know if it is possible to disabled card? and hot it impacts if done online??
#powermt display ports
Storage class = Symmetrix
==============================================================================
----------- Storage System --------------- -- I/O Paths -- --- Stats ---
ID Interface Wt_Q Total Dead Q-IOs Errors
==============================================================================
Storage class = CLARiiON
==============================================================================
----------- Storage System --------------- -- I/O Paths -- --- Stats ---
ID Interface Wt_Q Total Dead Q-IOs Errors
==============================================================================
APM00084701833 SP B5 256 2 0 0 0
APM00084701833 SP A5 256 2 0 0 0
APM00084701833 SP A4 256 2 0 1 4
APM00084701833 SP B4 256 2 1 0 2
powermt display dev=all
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
==============================================================================
1 QLogic Fibre Channel 2300 sdd SP B5 active alive 0 0
1 QLogic Fibre Channel 2300 sdf SP A5 active alive 0 0
2 QLogic Fibre Channel 2300 sdh SP A4 active alive 0 3
2 QLogic Fibre Channel 2300 sdj SP B4 active alive 0 1
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
==============================================================================
1 QLogic Fibre Channel 2300 sdc SP B5 active alive 0 0
1 QLogic Fibre Channel 2300 sde SP A5 active alive 0 0
2 QLogic Fibre Channel 2300 sdg SP A4 active alive 0 3
2 QLogic Fibre Channel 2300 sdi SP B4 active dead 0 1
I have erros reporting from one of the two HBA(two paths). which is causing performance issues. can i disable two paths from that particular HBA?? Need to disable A4&b4 paths only.
I dont know if it is possible to disabled card? and hot it impacts if done online??
#powermt display ports
Storage class = Symmetrix
==============================================================================
----------- Storage System --------------- -- I/O Paths -- --- Stats ---
ID Interface Wt_Q Total Dead Q-IOs Errors
==============================================================================
Storage class = CLARiiON
==============================================================================
----------- Storage System --------------- -- I/O Paths -- --- Stats ---
ID Interface Wt_Q Total Dead Q-IOs Errors
==============================================================================
APM00084701833 SP B5 256 2 0 0 0
APM00084701833 SP A5 256 2 0 0 0
APM00084701833 SP A4 256 2 0 1 4
APM00084701833 SP B4 256 2 1 0 2
powermt display dev=all
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
==============================================================================
1 QLogic Fibre Channel 2300 sdd SP B5 active alive 0 0
1 QLogic Fibre Channel 2300 sdf SP A5 active alive 0 0
2 QLogic Fibre Channel 2300 sdh SP A4 active alive 0 3
2 QLogic Fibre Channel 2300 sdj SP B4 active alive 0 1
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
==============================================================================
1 QLogic Fibre Channel 2300 sdc SP B5 active alive 0 0
1 QLogic Fibre Channel 2300 sde SP A5 active alive 0 0
2 QLogic Fibre Channel 2300 sdg SP A4 active alive 0 3
2 QLogic Fibre Channel 2300 sdi SP B4 active dead 0 1
RRR
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August 11th, 2009 01:00
In the "PowerPath Family CLI and System Messages Reference Guide 5.2 and 5.3 A03" on page 16 I found 2 commands to disble ports:
- powermt disable hba
- powermt set port_disable
I suggest you read through this manual, since it's explained very well
RobertDudley
448 Posts
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August 10th, 2009 06:00
RRR
5.7K Posts
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August 10th, 2009 07:00
SKT2
1.3K Posts
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August 10th, 2009 08:00
Message was edited by:
SKT
RRR
5.7K Posts
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August 11th, 2009 01:00