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

Virtual NullDVDs require no additional management beyond that required for the Virtual DVD
(see Section 7.2.2.3.4 (page 114)) or Virtual FileDVD (see Section 7.2.2.3.5 (page 115)) types they
become.
7.2.2.3.7 Attachable Devices
Integrity VM allows you to attach physical VM Host backup device types to virtual machines.
The VM Host backup device types are tapes, media changers, and CD/DVD burners. These
devices are specified on the VM Host using HP-UX agile esctl or legacy sctl device files.
Use of the agile esctl device files are recommended, because they are per physical device not
per path, as legacy sctl device files are. When using legacy sctl device files, do not specify
a physical device more than once to a virtual machine through different hardware paths.
Information about the use of legacy sctl device files cane be found throughout this manual.
The guest OS running on the virtual machine has full control over an attached physical device.
Therefore, the guest OS must support the device being attached. For a list of supported guest
OS drivers, see the device's product documentation.
The resource statements for attached devices take the following forms depending upon device
type:
• For magnetic tape:
tape:scsi::attach:/dev/pt/pt_tape#
• For media changers:
changer:scsi::attach:/dev/pt/pt_autoch#
• For CD/DVD burners:
burner:scsi::attach:/dev/pt/pt_disk#
where /dev/pt/pt_* files are HP-UX esctl device files.
Attachable devices can be specified as scsi or avio_stor.
To create an HP-UX esctl device file, follow these steps:
1. Run ioscan to pick up any new devices that were connected:
# ioscan
2. Locate the device designated for attachment.
a. Install any device special files for these new devices:
# insf -e
b. Verify whether the new devices were claimed by VM Host:
# ioscan -Nfun
The following is an example of a claimed tape device:
tape 1 64000/0xfa00/0x19 estape CLAIMED DEVICE HP Ultrium 1-SCSI
/dev/rtape/tape1_BEST /dev/rtape/tape1_BESTn
/dev/rtape/BESTb /dev/rtape/tape1_BESTnb
If the device is not seen in ioscan -fun, proceed to step 2c. Otherwise, go to step 3.
c. If the device is not claimed, make sure the device is seen:
# ioscan -fk
The following is an example of an unclaimed media changer device:
Class I H/W Path Driver S/W State H/W Type Description
==============================================================================
ext_bus 6 0/2/1/0 c8xx CLAIMED INTERFACE SCSI C1010
Ultra160 Wide LVD A6828-60101
target 35 0/2/1/0.0 tgt CLAIMED DEVICE
unknown -1 0/2/1/0.0.0 UNCLAIMED UNKNOWN HP ThinStor
AutoLdr
7.2 Configuring Integrity VM Storage 117