HP Integrity VM Manager

VM Properties General tab Meters Might Incorrectly Report No Data  The “VM CPU Utilization”, “Network I/O”, and “Storage I/O” meters on the VM Properties General tab might display No data while the corresponding meters on the VM Host Virtual Machines tab do display data. (The meter on the VM Host Virtual Machines tab that displays VM CPU Utilization is actually labeled as the “VM vCPU Utilization” meter.)

Workaround  The values shown by the meters on the VM Host Virtual Machines tab are correct.

VM Manager Screens Might Incorrectly Identify or Omit USB Backing Devices  Integrity VM 4.0 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 ModifyAdd 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 HP IT Resource Center website:

http://www.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 will be automatically included in all HP-UX 11i v3 OEUR releases after 0809.

For more information about HP-UX 11i v2 patches, see the following Update to USB Driver Support on HP-UX 11i v2 document:

http://www.docs.hp.com/en/13702/3-UpdatetoUSBDriverSupportonHPUX11iv2.pdf

As of the date of publication of this document, the update information for the HP-UX 11i v3 patches had not yet been posted at the HP Technical Documentation website (http://docs.hp.com).

Storage Tabs Might Display Duplicate Lines Between Agile and Legacy Physical Storage Device Representations  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.