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18 Posts
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3539
January 20th, 2014 00:00
How to disable EMC Powerpath
Dears
Our Environment consist of 2 node Hyper-V Cluster with AX4 shared storage.
Presently we have enable EMC Powerpath(Free for AX4) and we are planning to connect the VNX 5300 to this cluster , Hence I believe the current EMC powerpath will not support VNX 5300 .
Hence How could I remove the EMC powerpath and enable MPIO
OR
Can I just leave the EMC powerpath and continue to work ( we will be discarding the AX4 after the data is migrated)
Kindly advice.
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Muraleedaran
18 Posts
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January 27th, 2014 21:00
Dears
Finally I removed the EMC Powerpath and enabled MPIO and tested the LUN it was working fine.
Thankyou for the valuable feedback.
dynamox
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20.4K Posts
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January 20th, 2014 05:00
what version of Powerpath are you running ? You have to be at specific version of PowerPath that support VNX series. If you already have the license why not upgrade to the latest version that does support VNX array ?
Muraleedaran
18 Posts
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January 27th, 2014 00:00
Dear Dynamox
Thanks for the reply.
Sorry I could not reply as I was engaged with another project.
the customer did not buy the EMC powerpath licnese also I connected one of the SPA port on the new storage to the server and I was able to see the lun's
THe Powerpath version is 5.2 (build 146)
WIll I have a problem if I leave the configuration as it is ?
dynamox
9 Legend
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20.4K Posts
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January 27th, 2014 03:00
you need to be at least on PowerPath 5.3 or higher. If you run "powermt display dev=all" , do you see VNX LUNs listed in the output ? Can you paste it here.
Muraleedaran
18 Posts
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January 27th, 2014 04:00
Dear
Yes I can see the LUN's ( THe powerpath state shows as "unlicensed"
Is it ok if I remove the EMC powerpath and stay on MPIO or do I need to update EMC powerpath to 5,3
if so what are the precautions or steps i should make
dynamox
9 Legend
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20.4K Posts
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January 27th, 2014 07:00
it's your (or your customer call). Right now you are running unsupported configuration because according to e-lab you need to be running PP 5.3 and higher. If your customer runs into any issues, EMC will refuse support until customer upgrades to supported version. MPIO is supported by EMC as well so if you want to go that route you can, you need to figure how to migrate from PowerPath to MPIO multipathing. If customer has paid for PowerPath license/support i would schedule a time and upgrade it, PowerPath is more sophisticated than MPIO when it comes to load-balancing and failover.
kelleg
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February 12th, 2014 14:00
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glen