BootOnSAN with rpXXXX

[Benoît]

Hi,

Does anybody have a walkthrough for BootingOnSAN with an rpXXXX ?

Operation : Migrating an rpXXXX from a disk array to another.
LUN will be replicated thru hardware replication solution.

Can you help me to plan the operation?
What are the clues/tips/important steps to take into consideration?
I guess we'll have a mess in hardware path or something ...

Thanks

[Torsten.]

"LUN will be replicated thru hardware replication solution"
This information is not very helpful.

Based on this - locate the "new" hardware path and boot the system from. If needed, adjust the LVM configuration.

[Steven E. Protter]

Shalom,

Walkthrough #1. Very bad idea. If you san goes down so goes your system and any chance of diagnosing the problem.

rpxxxx systems have a boot interrupt at console. Use the sea command to find a bootable device if you must try this plan.

SEP

[Torsten.]

I assume your SAN is fully redundant, so there is no concern with booting from it (if all devices are supported for HP-UX boot).

Regarding the boot path:
Try to calculate it (I'm sure you know how to) or insert an installation CD and boot from this (of course do not install from it ;-))

The servers firmware will not show results from the search command while searching on SAN (it's not clever enough), but the install kernel will.

[Benoît]

Ok, time to give you more information :-)

Serveur is already booting on an ESS ... and it has to migrate on DS8k

I didn't install it and i'm not familiar with booting-from-san on those server.

What else can you tell me?

[Torsten.]

Check if the new device is supported for hp-ux boot.
Find out the boot path as adviced.
Stop the boot process, boot from that path (LVM maintenance mode). Adjust the hw path settings while doing a vgexport/vgimport of vg00.