HP-UX Virtual Partitions Administrator's Guide (includes A.05.02)

How vPars and its Components Work

EFI and Integrity Notes

Chapter 2

EFI and Integrity Notes

• EFI Shell Accessibility

After the vPars Monitor (/stand/vpmon) is booted, the EFI shell will not be accessible. This includes

using hpux.efi and other EFI commands.

If you need to perform any EFI functions, you will need to shut down all the virtual partitions and reboot

the nPartition to access the EFI shell.

• New vPars Commands

The vPars commands introduced in vPars A.04.01 for use on only Integrity systems are vparenv,

vparconfig, and vparefiutil:

vparenv HP-UX shell command that allows you to set the mode (vPars or nPars) for the next

reboot of the nPartition or to set the memory granularity unit size in ﬁrmware.

vparconfig EFI command that allows you to set the mode (vPars or nPars) and forces a reboot of

the nPartition.

Note that vparconfig is not a built-in EFI command; you will need to go to the

fsN:\> disk prompt to execute this command.

vparconfig is installed in the EFI partition of the root disk when vPars is installed.

Speciﬁcally, the ﬁle is vparconfig.efi and is installed in \efi\hpux.

vparefiutil HP-UX shell command to display or manage the HP-UX hardware path to EFI

path mappings of bootable disks within the vPars database.

When booting the Monitor from EFI (boot /stand/vpmon), the backspace key sometimes is not parsed

correctly; if the command fails, try again without backspacing.

For more information on:

— using vparenv or vparconfig to switch modes, see “Modes: Switching between nPars and vPars

Modes (Integrity only)” on page 121.

— using vparenv and granularity, see “Memory: Granularity Concepts” on page 249.

— using vparefiutil, see “EFI Boot Disk Paths, including Disk Mirrors, and vpareﬁutil (Integrity

only)” on page 126.

• CPUs and Deconﬁguration

If a CPU is marked for deconﬁguration using an EFI command and the nPartition is not rebooted (for

example, the vPars Monitor is immediately booted), the vPars Monitor will not know or indicate

(including with vparstatus) that the CPU has been marked for deconﬁguration and will use the CPU

like any other working CPU.

• EFI Variables and Switching Modes

NOTE The following EFI settings behavior does not occur when using vPars A.05.01 or later,

vPars A.04.04 or later, and the system ﬁrmware required for those vPars releases. See the

HP-UX Virtual Partitions Ordering and Conﬁguration Guide for minimum ﬁrmware

version details.