HP-UX Virtual Partitions Administrator Guide (includes A.05.08) (5900-1312, March 2011)

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 vPars 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)” (page 124).
◦ using vparenv and granularity, see “Memory: Granularity Concepts” (page 211).
◦ using vparefiutil, see “EFI Boot Disk Paths, including Disk Mirrors, and vparefiutil
(Integrity Only)” (page 128).
• 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.
The default EFI settings in nPars mode will be inherited when switched to vPars mode. However,
when switching back to nPars mode, any EFI settings will be reset to the nPartition defaults,
unless otherwise noted (for example, memory granularity). This includes the primary and
alternate paths (HAA (High-Availability Alternate) is not supported). Even if you use parmodify
to change the paths, parstatus will show them as set; however, once the system is booted
into nPars mode, those changes by parmodify are not retained. For more information on
switching modes, see the manpage vparenv(1M).
Also, while running in vPars mode, the EFI device path of a boot device, specifically the vPars
Monitor boot device, can be changed when the boot device is reformatted due to an installation
(either cold or Ignite-UX). The associated EFI boot path is updated to use the new EFI device
path. However, firmware-saved EFI boot path options are not updated. If the nPartition or
vPars Monitor is rebooted, the new EFI boot path options are discarded and replaced with
the previously saved EFI boot path options, which contain now stale EFI device paths.
The EFI boot options can be updated manually by performing the following:
1. Switch to nPars mode via the vparenv or vparconfig command.
2. Reboot the nPartition to the EFI Boot Manager.
EFI and Integrity Notes 37