How to switch boot from vpar to npar?

[Peter Peizhong Li]

I have a nPar server with one vPar on it only. I'm going to add cell board and additional CPU/Memory to it.
My plan is:
1. modefy boot kernel from vPar mode to nPar mode (for next reboot),
2. shutdown system and add cell board
3. reboot system up (it should be in nPar mode)
4. use vparmodify command to add resource to the vpar
5. modify boot kernel to vPar mode
6. reboot system

Can anybody review if my steps are correct? Or since this is single vPar server, I even don't need to switch boot kernel? If I have to switch, how to switch the boot kernel?

Thank you in advance.

[Torsten.]

Is this a HP9000 or Integrity server?

# model

Steps are different!

[Peter Peizhong Li]

# model
ia64 hp server rx8640

[Torsten.]

... regarding the steps - I suggest something different (depending on server model):

1) add cell and verify firmware
2) add cell to nPar
3) reboot for reconfig (RR)

... now it is platform dependent ...

[Torsten.]

Ok, it is an Integrity, so switch to nPar mode

# vparenv -m nPars

# shutdown -R
(capital letter!)

- stop at boot menu and boot vmunix instead of vpmon

- add resources to your vPar

# vparenv -m vPars

# shutdown -r

- let the system boot into the vPar

[Peter Peizhong Li]

Instead of use shtdown -R, should I use shutdown -FH to power down the server, let HP engineer to install the cell board, then let him to power on the server to nPar mode?

[Torsten.]

Well, the "-R" (reconfiguration reset) is needed to activate the new nPar configuration with the new cell included.

See

man shutdown

[Peter Peizhong Li]

Your explanation is very clear and helpful. My problem is resolved. Thank you!