‎Powerpath vs MPIO | DELL Technologies

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Consty

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15 years ago

Consty

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October 7th, 2011 11:00

Powerpath vs MPIO

Hello,

I am connecting AIX (Version 6.1) servers to an EMC CX4-120 array using Powerpath 5.5.02, when I create a LUN it becomes an MPIO device by default

instead of Powerpath as expected. Powerpath commands (options disply or check) does not show any device.

What could be the problem ? How can I go about that ?

Thanks

Regards

Jean

D
dynamox
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Posted October 7th, 2011 11:00
you should have either PowerPath or MPIO ..not both.
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Consty
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Posted October 7th, 2011 12:00
Sorry, I meant should I remove MPIO first ?
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Consty
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Posted October 7th, 2011 12:00
Thanks

I understand, but I did the same on previous versions of AIX and PP and it took Powerpath by default without removing Mpio.

Do you mean that I should remove PP first ? I don't know if you or someone else did that and how ?

Regards
D
dynamox
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Posted October 7th, 2011 12:00
I don’t think it matters
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dynamox
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Posted October 7th, 2011 14:00
also take a look at this solution: emc207898
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dynamox
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Posted October 7th, 2011 14:00
from ODM README file

CLARiiON Support:

----------------

Only one of the following EMC CLARiiON FCP filesets can be installed at

any specific time. (e.g) EMC CLARiiON FCP MPIO Support Software can't be

installed when EMC CLARiiON FCP Support Software is installed.

EMC CLARiiON FCP Support Software; IBM Fibre Channel driver support.

EMC CLARiiON FCP MPIO Support Software; IBM default PCM MPIO support.