HP-UX vPars and Integrity VM V6.3 Administrator Guide

Table 12 Virtual DVD-ROM types
Backing storage deviceVirtual DVD type
Disk in a VSP physical DVD driveVirtual DVD
ISO file on a VSP VxFS file systemVirtual FileDVD
VSP physical DVD drive or VxFS directoryVirtual NullDVD (empty)
6.3.2.2 Attached devices
vPars and Integrity VM supports a suite of attached devices on HP-UX 11i v2 and HP-UX 11i v3
guests to complete data backups from a vPar or VM guest. vPars and Integrity VM attaches these
devices using a special pass-through capability built into the AVIO storage driver on the host. With
this pass-through mechanism, vPar or VM I/O requests are sent through the virtual storage subsystem
to the physical device. The device responses are sent to the AVIO storage driver, which sends the
responses to the vPar or VM. The vPar or VM guest has visibility to all the data and responses.
Hence, support for the attached physical device must be provided by the guest OS.
Attached devices include:
• CD/DVD burners
• Media changers
• Tape devices
Attached devices allow sharing of tapes, changers, and burners among multiple guests and the
host. Attached I/O supports USB 2.0 DVD burners.
6.3.2.3 NPIV devices
For more information about NPIV devices, see Chapter 7 (page 101).
6.4 Configuring vPar and VM guest storage
This section explains how to plan and set up vPar and VM guest storage.
6.4.1 Storage considerations
When you configure storage for a vPar or VM guest, consider the following:
• Storage supportability
• Storage performance
• Storage multipath solutions
• Storage management
• Storage changes
• Virtual storage setup time
6.4.1.1 Storage supportability
Before you configure vPar or VM guest storage, ensure that the VSP storage can be supported by
the vPar or VM guest by ensuring the following:
66 Storage devices