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

AVIO backing store. HP recommends the use of AVIO for the supported guest operating systems,
guest devices and host backing stores. See the HP Integrity Virtual Machines 4.2: Release Notes and
AVIO documentation for details.
7.1.4.2 Integrity VM Storage Devices
Integrity VM supports a variety of virtual and attachable devices. Disk and DVD-ROM devices
support several virtual media types (see Section 7.1.4.2.1 (page 102)). Physical tapes, media
changers, and CD/DVD burners are attachable; they can be used to perform data backups directly
from a virtual machine (see Section 7.1.4.2.2 (page 102)).
7.1.4.2.1 Virtual Devices
Integrity VM supports the following virtual disk types:
For more information, see...Backing Storage DeviceVirtual Disk Type
“Virtual Disks” (page 110)VM Host diskVirtual Disk
Section 7.2.2.3.2 (page 111)VM Host LVM or VxVM logical
volume.
Virtual LvDisk
Section 7.2.2.3.3 (page 113)VM Host VxFS fileVirtual FileDisk
The following virtual DVD-ROM types are supported:
Described in ...Backing Storage DeviceVirtual DVD Type
Section 7.2.2.3.4 (page 114)Disk in a VM Host physical DVD
drive
Virtual DVD
Section 7.2.2.3.6 (page 115)ISO file on a VM Host VxFS file
system
Virtual FileDVD
Section 7.2.2.3.3 (page 113)VM Host physical DVD drive or
VxFS directory
Virtual NullDVD
(empty)
7.1.4.2.2 Attached Devices
Integrity VM supports a suite of attached devices to complete data backups from a virtual
machine. Integrity VM attaches these devices using a special Integrity VM pass-through driver.
With this pass-through driver, virtual machine I/O requests are interpreted by Integrity VM and
sent through the virtual storage subsystem to the physical device. The virtual storage subsystem
sends device responses to the Integrity VM pass-through driver, which sends the responses to
the virtual machine. Because the virtual machine can see all the data and responses, support for
the attached physical device must be provided by the guest OS. An attached device can be
attached to only one virtual machine at a time.
Attached devices include:
• CD/DVD burners
• Media changers
• Tape devices
The maximum transfer size can be 1 MB for any guest operating system.
7.2 Configuring Integrity VM Storage
This section describes how to plan and set up Integrity VM storage, including the following
topics:
• “Integrity VM Storage Considerations”
• “Setting Up Virtual Storage”
102 Creating Virtual Storage Devices