topic Re: Moving from EMC PowerPath to MPIO on HP-UX 11.31 in Operating System - HP-UX

Moving from EMC PowerPath to MPIO on HP-UX 11.31

Kennedy G. Doss — Tue, 08 Nov 2011 16:18:00 GMT

HP-UX Admins,

If I have to eliminate PowerPath and make use of native MPIO, are there any documents, pointers, technical instructions somewhere which you can send me? Any input would be most appreciated.( I am familiar with the steps needed to move from EMC PowerPath to native MPIO/Multipathing in the RHEL world. I've never done that before in the HP-UX environment)

Regards,

-Kennedy

Re: Moving from EMC PowerPath to MPIO on HP-UX 11.31

Jeff_Traigle — Tue, 08 Nov 2011 21:04:59 GMT

You're going to want EMC Host Connectivity Guide for HP-UX to cover the details. It's available on EMC PowerLink. The current version is September 2011.

Re: Moving from EMC PowerPath to MPIO on HP-UX 11.31

malai2000 — Wed, 09 Nov 2011 13:44:18 GMT

Hi Kennedy,

Just follow these two attached docs which explains step by step instruction on how to configure Native MPIO in HP-UX to work with Storage Array. I was successfully configured three of our RX6600 IA64/HP-UX 11.31 server with EMC Clariion array.

Regards,

Thirumalai Ulaganathan

Re: Moving from EMC PowerPath to MPIO on HP-UX 11.31

f. halili — Thu, 10 Nov 2011 16:45:39 GMT

If you have PowerPath you would have to export the VG, remove powerpath & then import the VG. Note that the export will remove the VG so do this with caution. I would try on a test environment first.

# vgexport -m /tmp/vgev01.mapfile -s -v /dev/vgev01

Here's how to remove PowerPath:

# swremove -x autoreboot=true -x mount_all_filesystems=false EMCpower

Re-create and it will use the persistent names of the disk devices.

# mkdir /dev/vgev01
# mknod /dev/vgev01/group c 64 0x200000
# vgimport -m /tmp/vgev01.mapfile -s -N -v /dev/vgev01

thanks,

f. halili

Re: Moving from EMC PowerPath to MPIO on HP-UX 11.31

Kennedy G. Doss — Thu, 10 Nov 2011 18:34:58 GMT

Ulaganatha-Saar.

(Rombo Nandri.) Thank you very much for the timely help :)

Re: Moving from EMC PowerPath to MPIO on HP-UX 11.31

Kennedy G. Doss — Thu, 10 Nov 2011 18:35:22 GMT

Thanks you very much