Reserving VM Host Devices

You can protect the storage and network resources used by the VM Host against usage and corruption by virtual machines by marking the VM Host devices as restricted devices. For example, you can reserve the disk storage on which the VM Host operating system and swap space reside, which prevents guests from being able to access the same disk storage devices. The hpvmdevmgmt command allows you to establish restricted devices.

For example, to restrict the /dev/rscsi/c2t0d0 device, enter the following command:

# hpvmdevmgmt –a rdev:/dev/rscsi/c2t0d0

To complete the restriction of volumes, each device included in the volume must also be restricted. For more information about using the hpvmdevmgmt command, see “Managing the Device Database”.