HP Integrity Virtual Machines 4.2: Installation, Configuration, and Administration

hpvmhostrdev(1M)
NAME
hpvmhostrdev -- Manages virtual machine access to devices used by the Integrity VM Host
system.
SYNOPSIS
hpvmhostrdev [-D | -E | -d | -h | -r | -u]
DESCRIPTION
The hpvmhostrdev command manages virtual machine access to devices — disks and volumes
— used by the VM host system. The Integrity VM device-management database (hpvmdevmgmt
(1M) provides the capability to restrict virtual machine access to devices used by the VM Host.
The hpvmhostrdev command can automatically identify storage used by the VM Host physical
system and restrict that storage from being used by virtual machines. This identification is
consistent with that of system management tools such as the HP System Management Homepage
(HP SMH) and the HP System Administration Manager (HP SAM).
When executed without any options or with the -u option, the hpvmhostrdev command
operates as follows:
• Any devices previously identified and restricted by the hpvmhostrdev command are
removed from the Integrity VM device database if they are no longer used by the VM Host
system. Subsequently, such devices become available for use by virtual machines. All device
currently used by the VM Host system are identified and restricted by the hpvmhostrdev
command.
• To restrict a device from use by virtual machines, hpvmhostrdev inserts an entry for that
device into the Integrity VM device database as a restricted device with the attribute
AUTODEV set to YES (see the hpvmdevmgmt (1M) command).
• By default, hpvmhostrdev -u is executed during startup of the Integrity VM software.
This startup execution can be enabled or disabled with the -E or -D options, respectively.
• Execution of the hpvmhostrdev command without any option causes the VM Host system
to rescan its storage devices and might take some time to execute.
NOTE: Do not use the -u option immediately after hardware has been added online (that
is, without rebooting the VM Host system to add the hardware).
• The hpvmhostrdev command restricts only the user of disks and logical volumes used by
the VM Host system for its swap space, file systems, or (in the case of disks), logical volume
groups. Any unused devices are ignored (that is, not restricted) by hpvmhostrdev.
• When hpvmhostrdev is executed with the -u, the -d, or without any options, it creaets a
backup copy of the Integrity VM Host device database. This copy can be recovered using
the -r option.
NOTE: Only a superuser may execute the hpvmhostrdev command.
Options
The hpvmhostrdev command recognizes the following command-line options:
-D Disables execution of hpvmhostrdev during startup of the Integrity VM software.
Subsequent startup of the Integrity VM system (that is, /sbin/init.d/hpvm start),
does not automatically identify, update, and restrict use of the VM Host system's storage
devices. Note that this option does not remove restricted device entries form the Integrity
VM device database.
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