HP-UX HB v13.00 Ch-17 - vPars

HP-UX Handbook – Rev 13.00 Page 24 (of 46)
Chapter 17 Virtual Partitions (vPars)
October 29, 2013
-D database_filename boots the virtual partitions using an alternate partition database file.
For more information, see “Using an Alternate Partition Database
File” at http://docs.hp.com. The default partition database file is
/stand/vpdb.
Note: Once the vpmon has been loaded, the EFI partition or LIF area is no longer accessible. vpm
http://docs.hp.com/en/7042/T1335-90041.pdfon looks into the vPars database to find the
hardware path and kernel path for each vPar.
vpmon does not give you an opportunity to interact with the boot of a vPar. Any boot options
must be specified either in the database or by the command used to manually boot a vPar.
The boot disk of every vPar will contain both vpmon and a copy of the vPars database. This
makes it possible to boot from any of the vPars boot disks.
A.03.xx and earlier: When the system monarch CPU is not owned by any virtual partition, you
will also see the monitor prompt MON> while toggling between the virtual consoles.
A monarch CPU exists in both non-vPars and vPars servers. After a server is powered on, the
monarch CPU determines what other CPUs are configured on the server and then launches these
other CPUs to create a multi-CPU server. Typically, the CPU with the lowest numbered
hardware path address (belonging to the core cell for nPar systems) is the monarch CPU. To see
the lowest numbered hardware path on a non-vPars server use ioscan; on a vPars server use the
Monitor command scan.
A.04: When any CPU is available, you will see the MON> prompt.
EFI Commands (Integrity only), vPar and nPar Modes
There is a variable in the EFI NVRAM of Integrity systems that is used to determine whether the
monitor will be allowed to boot. When the mode is set to nPar the monitor cannot boot. When
the mode is set to vPar, the nPar cannot be booted stand-alone; only the monitor can be booted.
The vparconfig command in the EFI shell is new to Integrity servers. It is used to switch
between nPar and vPar mode on a cell-based Integrity Server. Note, that the vparconfig
command is not a built-in command of the EFI shell. You will first have to select an EFI
partition of a boot disk that has the vPars software installed.
Examples:
Set the mode to vPars and then immediately reboot the nPartition into vPars mode:
Shell> fs0:
fs0:\> vparconfig reboot vPars