Upgrade from hpux v2 to v3

[mrmo07]

Hi,

i have rx6600 with hpux 11iv2(MCOE). storage is EMC. power path is installed on hpux box. now i like to upgrade v2 to v3 (DC-OE). concern is EMC power path. should i remove EMC power path or i can continue power path with hpux 11iv3?? is there any problem is both are exists. please advise little details.

Regards,
mrmo07.

[Ismail Azad]

Hey Mrm07,

Well there is always a talk about EMC clarion arrays and the most amusing feature of 11.31 which could be an area that you should consider. You can consult HP StorageWorks SPOCK and you will also see as mentioned before that the EMC disk storage is only qualified as interoperable which does not constitute full support {well there could be one keyword native multipathing}.

Here is the matrix for third party mass storage interoperability with HPUX 11i.

http://www.hp.com/products1/serverconnectivity/mass_storage_devices.html#EMCiSCSI




Regards
Ismail Azad

[maslo64]

Yes, remove powerpath before upgrade.
Check with Storage team about correct settings of SPC-2 and OSO7.

[Tim Nelson]

beware that the "upgrade" process is only 50% successfull.

best to do cold install and migrate apps.

[maslo64]

I've upgraded 12 systems without problem. And this is fastes way to do migration now.
It's safe compared to 11.11 -> 11.23 update-ux

Don't forget upgrade SYMCLI.

Laco

[Scott Lindstrom_2]

All of our 11.31 upgrades were done as upgrades w/o any problems.

[Steven E. Protter]

Shalom,

You should not use update-ux to do a major version OS upgrade. It does not work very well.

It works fine for updating the OE within an OS. It works very poorly for taking a system from 11.23 to 11.31.

I recommend you do a cold install to 11.31 followed by reinstallation of your apps. Also note, native multipathing is often good enough in 1131, negating the need for POWERPATH.

I manage 60 11.31 servers, mostly rx8640 and none of them use POWERPATH, in spite if SAN storage all being EMC.

SEP

[mrmo07]

Hi SEP,

problem is customer don't agree with fresh installation. as now power path is installed. if i removed power path and upgrade OE, will it make problem to access LUNS. one more thing can we use power path with v3??? i mean both simultaneously. please advise


Mrmo07

[g3jza]

Hi,
regarding the powerpath in 11.31:

In the doc "The Next Generation Mass Storage Stack - HP-UX 11iv3" is stated:

"Third-Party Multi-Pathing Products: Native multi-pathing affects the following third-party multi-pathing products:
SecurePath is not supported on HP-UX 11i v3.
PowerPath does not manage multi-pathing on HP-UX 11i v3.
VERITAS Dynamic Multipathing (DMP) does not support the agile view."

So according to this, there's no use of having powerpath in 11.31.