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

The Integrity VM toolkit script, hpvmsg_package, is used to create Serviceguard package
configuration file and control script templates for the VMs to be protected by Serviceguard
packages. This script is designed to determine the cluster-shared backing store and application
data storage used by the VM guest to be packaged and adds the appropriate logical volume and
mount point entries into the package control script for guest failover.
11.3.5 Limitations Associated with These Configurations
The following limitations are associated with Serviceguard configurations:
• The only backing-store types permitted with Online VM Migrations are:
— Whole disk
— Shared LVM logical volumes
If you plan to use Online VM Migration with VMs as Serviceguard Packages, you must
limit your VM configuration to one of these backing-store types.
• The VM Host presents devices to the virtual machines as virtual devices. Attached I/O
devices; such as tape, DVD, burner, and changed, are not presented as virtual devices; but
instead, they are presented as direct I/O devices. In a typical Serviceguard configuration,
these devices are ignored and are not expected to be present on more than one Serviceguard
node. The hpvmsg_package script does not insert information about these devices into the
package configuration file. For information about excluding a device from probing, see the
Managing Serviceguard manual.
There is no limitation associated with the use of AVIO functionality with VMs as Serviceguard
Packages configurations.
11.3.6 Operating System and Software Requirements
The following software is assumed to be properly installed and configured:
• Appropriate HP-UX version and the Data Center OE
• HP-UX patches
• Serviceguard Depots, if not included in the OE
• Serviceguard Patches
• Integrity VM Depot, if not included in the OS and OE
• Integrity VM Patches
Additionally, depending on your particular requirements, the following optional products might
also need to be installed and configured:
• APA (HP-UX 11i v2 only)
• SecurePath (HP-UX 11i v2 only)
• SMS 5.0 Depots (provides CFS/CVM)
• SGeRAC Depot (provides SLVM) — T1907BA A.11.19.00 Serviceguard Extension for RAC
11.3.7 Creating the Package Configuration
The interrelated configuration of the Serviceguard cluster, VM Host, virtual machine, guest, and
Serviceguard package dictates that all components be configured and created in a particular
sequence. The following steps provide a sequence of activities, which is one of many ways to
create a VMs as Serviceguard Packages configuration. Virtualization and Serviceguard Managers
might be used as alternatives when appropriate. Note, some steps are performed on all nodes,
the primary node, or the secondary nodes.
1. On all nodes, perform the following steps:
a. Configure networks (IP address, APA, VLANS).
b. Run the hpvmnet command to configure the vswitch for guest access.
c. Configure the MSE using the hpvndevmgmt command.
11.3 VMs as Serviceguard Packages 197