HP Integrity Virtual Machines Manager 4.1.1 Software: Release Notes

VM Manager screens might incorrectly identify or omit USB backing devices
Applies to usage with: Both Insight Dynamics and HP SMH Standalone
Integrity VM 4.x allows a USB DVD or CD drive to be used as the backing devices for a virtual
DVD or CD in a virtual machine. However, in the HP-UX 11i v3 September 2008 Operating
Environment Update Release (OEUR) and earlier, the drivers for the USB devices are not completely
integrated into the HP-UX 11i v3 agile mass storage stack. They have neither a persistent device
special file nor a LUN hardware path. In addition, they have an ioscan description that might
not correctly indicate the type of device. For example, ioscan might report "USB SCSI Stack
Adaptor" as the description of a USB DVD drive. If a USB device is used as the backing device
for a virtual DVD, it appears on the VM Host Storage or VM Properties Storage tab with the same
description given it by ioscan. Although that description might not indicate that the device is a
DVD drive, the device is tagged with a DVD icon to indicate that it is a CD or DVD drive.
Additionally, because the device has no agile address, in the Add Storage Device dialog used
with the Modify→Add Storage Device menu item and in the Create Virtual Machine wizard, a USB
DVD or CD drive is displayed in the list of potential backing devices only when the "legacy
addressing" radio button is selected. It does not appear when the "agile addressing" radio button
is selected (the default value on first entry to the dialog).
Workaround
You can remove this limitation by installing new USB drivers and additional patches available at
the following IT Resource Center (ITRC) website:
http://itrc.hp.com/
For HP-UX 11i v3, install patch PHKL_37815 and its co-requisite patches on HP-UX 11i v3 OEUR
0809. For HP-UX 11i v2, install patch PHKL_37814 and its co-requisite patches. These patches
collectively integrate USB into the mass storage stack for HP-UX 11i v3 and v2 respectively, and
they add additional functionality such as support for USB 2.0.
The USB change is automatically included in all HP-UX 11i v3 OEUR releases after 0809.
For information about updating to the new USB driver on HP-UX 11i v3, see the Update to USB
Driver Support on HP-UX 11i v3 manual.
For more information about HP-UX 11i v2 patches, see the Update to USB Driver Support on HP-UX
11i v2 manual.
Storage tabs might display duplicate lines between agile and legacy physical storage
device representations
Applies to usage with: Both Insight Dynamics and HP SMH Standalone
For a VM Host with Integrity VM Version 4.0, if the VM Manager VM Host Storage or VM Properties
Storage tab has the Show physical host bus adapters checkbox selected, the right-hand side of the
display includes lines associating two boxes representing the same physical storage device, one
with the agile persistent device special file (DSF), such as /dev/rdisk/disk4, and the other
with the legacy DSF, such as /dev/rdsk/c2t0d0.
If a virtual machine contains a virtual storage device that uses the persistent DSF, while another
virtual machine on the same VM Host uses the legacy DSF for a virtual storage device using the
same physical backing store, either virtual storage device might be displayed in the VM Host
Storage or VM Properties Storage tab with duplicate lines between the two box representations of
the physical storage device.
Workaround
When configuring virtual storage devices, consistently use either the persistent DSF or the legacy
DSF for any physical device in all its uses as a backing device. HP recommends using the persistent
DSF. Its path independence automatically expedites load balancing and failover.
8 VM Manager limitations and known issues