HP Integrity Virtual Machines Release Notes

6.11.1 Required HP Serviceguard Patches
To use Serviceguard to manage HP-UX guests, make sure the required patches are installed. For
more information, see Section 2.1.6 (page 18).
6.11.2 Reenter Command to Start Packages
The procedure for configuring and starting guest packages includes the cmrunpkg command.
This command does not always work the first time you enter it. If the command does not start
the package, re-enter the command.
6.11.3 Do not Use Integrity VM Commands to Manage Distributed Guests
Guests configured as Serviceguard packages should only be stopped and started using
Serviceguard package control commands. Do not use the Integrity VM commands (hpvmstart,
hpvmstop, and hpvmconsole) to start and stop these types of guests. For more information
about using Serviceguard to manage virtual machines, see the Integrity Virtual Machines Installation,
Configuration, and Administration manual.
6.11.4 Different Cluster Nodes Report Virtual Machine Status Differently
Integrity VM commands can receive different warnings and errors from guests running on
different Serviceguard nodes. For example, the Serviceguard node that is starting a guest as part
of a package knows that the guest is running before any other nodes know. (The delay is usually
less than 10 seconds.) Commands that are run on different servers report different errors or
warnings depending on whether the guest is running or not.
6.11.5 Syslog Entries for cmcld Can Be Ignored
With Serviceguard and Integrity VM running, you may see the following types of message in
the syslog file:
Syslog entries - cmcld[XXXX]: Warning: cmcld process was unable to run for the last X.XX seconds
These messages can be ignored.
6.11.6 Using Virtual Machines Manager (VM Manager) to Manage Distributed
Guests
The following situations might occur when you are using VSE to manage distributed guests
(guests that are configured as Serviceguard packages):
• There is a guest configuration file for each guest on each VM Host. Therefore, when you
modify a distributed guest you must modify the guest on each VM Host that is a cluster
node.
• Do not start and stop distributed guests using VM Manager menu items. Use Serviceguard
commands to start and stop distributed virtual machines. For more information, see the HP
Integrity Virtual Machines Installation, Configuration, and Administration manual.
• The VM Hosts field on the VM Properties page sometimes shows an incorrect list of hosts
in the cluster. If VM Manager is running on the VM Host that is actively managing the virtual
machine that is being viewed, the list is correct. In all other cases, the list is incorrect.
6.11.7 Polling Interval for Virtual Machine Serviceguard Nodes
Serviceguard failover in Integrity VM can take longer than expected with the default 5-second
network polling interval. To reduce the failover time, reduce the value of the HPVMNETINTVL
tunable to 2.
If your system has Serviceguard installed and you want to make sure that failover of their
vswitches used for Serviceguard fail over in less than 5 seconds, use a text editor to add or change
the following line in the /etc/rc.config.d/hpvmconf file:
40 Guest Administration