to upgrade emc power path from 5.1 to 5.5

Posted on 2014-02-18
Last Modified: 2014-03-17
Hi All,

I need to know the best way to upgrade the emc powerpath from 5.1 to 5.5  on RHEL 5.5 and pwerpath 5.3 to 5.5 on rhel 5.5  - as thats a production server having oracle volumes on it ....please advice asap.
Question by:apunkabollywood
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LVL 20

Expert Comment

by:Daniel McAllister
ID: 39868933
PowerPath software is "rented" (with a subscription price that is far from small) from EMC.

EMC Customer Support is somewhat well regarded...

Have you considered their support number? 1 (888) 544 4445

LVL 30

Expert Comment

by:Duncan Meyers
ID: 39869391
Should be relatively straghtforward - you need to check kernel revisions. You might find the simplest approach is to de-install 5.1 and install 5.5 cleanly. IIRC, the biggest change is the move to a centralised licensing server.

Latest for Linux is 5.7 SP01 P02 - I'd recommend going to the current version.

Author Comment

ID: 39913056
Okay thanks - one last query - Which version of Powerpath would be okay for RHEL 5.5 - i am thinking of Powerpath 5.6 is it okay?
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LVL 20

Assisted Solution

by:Daniel McAllister
Daniel McAllister earned 250 total points
ID: 39913140
EMC is exceptionally careful with their drivers -- matching them specifically to kernel releases.

To maintain your EMC support and warranty contracts, you must (repeat: MUST) ensure that your server is running the supported Linux kernel revision for the version of PowerPath you want to upgrade to.

Mis-matching your kernel and PowerPath drivers will void your support with EMC... and while you may not have any trouble with mixing PowerPath and a newer (or even slightly older) kernel release, why risk it?

IF IT WERE ME -- and I was taking the opportunity to reboot & upgrade a server (which I do RARELY ... if it works, DON'T FIX IT!... then I would go as far forward as I could.

LVL 30

Accepted Solution

Duncan Meyers earned 250 total points
ID: 39913209
>Mis-matching your kernel and PowerPath drivers will void your support with EMC.
Sorry - that's just wrong. If there are version mismatches, support will tell you that you need to fix it and *then* they can look at the problem if it still exists. The only time I've ever seen an issue was with Oracle Non-Stop Linux 5.0 - because changing the drivers meant support issues with Oracle. Bit of a problem when only one version of PowerPath is supported and it's got  a bug...
LVL 30

Expert Comment

by:Duncan Meyers
ID: 39913212
>Okay thanks - one last query - Which version of Powerpath would be okay for RHEL 5.5 - i am thinking of Powerpath 5.6 is it okay?
Check the PP release notes, especially the Known Issues section. Also check e-Lab Navigator from But PP 5.6 should be fine.

Author Closing Comment

ID: 39934905
Thank you for your supprt :)

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