HP Integrity Virtual Machines Installation, Configuration, and Administration Version A.03.50

Where component parts of the minor number are constructed as follows:
ConstructionMinor Number
Two hexadecimal digits, identifying the controlling interface card by its instance
number. The instance value is displayed in ioscan output, under column I for the
interface hardware type.
CC
One hexadecimal digit identifying the drive (target) address.T
One hexadecimal digit identifying the LUN within the deviceL
Hexadecimal digit zero, for reserved portion of the minor number.0
The following is an example of the tape device:
# /usr/sbin/mknod /dev/rscsi/c6t5d0 c 203 0x065002
5. Use the located or created sctl device file in specifying the attached device.
Use this resource statementFor this attached device
tape:scsi::attach:/dev/rscsi/c6t5d0
Tape
changer:scsi::attach:/dev/rscsi/c6t0d0
Media changer
burner:scsi::attach:/dev/rscsi/c4t3d0
CD/DVD burner
Attached devices cannot be shared simultaneously across active virtual machines. Only one
active virtual machine can be given a particular attached device at a time. However, like virtual
devices, attached devices can be attached and detached dynamically across active virtual machines
(see Section 7.3 (page 102)). Also, as the device is being attached to a virtual machine, it cannot
be opened by the VM Host at the time of or during attachment.
Because tapes, media changers, and CD/DVD burners are not virtualized, media changes with
them must be done physically. Therefore, all media changes with attached devices must be done
by individuals with access to that physical storage. Changes to attached devices might require
the device to be unlocked from an active guest OS. Attached devices remain in the last lock state
the guest OS put it in when the device is detached or the virtual machine is shut down. Empty
devices are attached and are not locked.
No multipath solutions are available for attached devices on the VM Host. No multipath products
are supported in the virtual machine.
Manage attached devices to prevent the wrong virtual machines from viewing sensitive
information. You can display which virtual machines are currently using attached devices using
the hpvmstatus command.
7.3 Using Integrity VM Storage
The following sections describe the roles of individuals accessing virtual storage, the commands
they use, and some examples of using Integrity VM storage.
7.3.1 Integrity VM Storage Roles
This section describes the roles that individuals play in working with Integrity VM storage. Each
role has different responsibilities in using Integrity VM storage. The roles might be played by
one or more individuals depending on security requirements and skill sets. The three roles are:
• Section 7.3.1.1: “VM Host Administrator” (page 103)
• Section 7.3.1.2: “Guest Administrator” (page 103)
• Section 7.3.1.3: “Guest User” (page 103)
102 Creating Virtual Storage Devices