HP Integrity Virtual Machines 4.3: Installation, Configuration, Administration

9.3.2.4 Using NTP on VM Hosts...............................................................................................190
9.3.3 SSH Setup Between the VM Hosts........................................................................................190
9.3.3.1 Troubleshooting SSH Key Setup...................................................................................190
9.3.3.2 Using a Third-Party SSH...............................................................................................191
9.3.4 Virtual Machine Requirements and Setup............................................................................191
9.3.4.1 Setting Online Migration Phase Time-Out Values........................................................191
9.3.4.2 Migrations Might Time Out and Need to be Restarted................................................192
9.3.4.3 Guest Storage Device Shareable Attribute not Propagated During Online
Migration..................................................................................................................................192
9.3.4.4 Using NTP on the VM Guests.......................................................................................193
9.3.4.5 Marking a Guest Not Runnable....................................................................................193
9.3.5 Restrictions and Limitations of Online VM Migration.........................................................193
9.4 Migrating Serviceguard Packaged Guests and Serviceguard Cluster Nodes...............................194
9.5 Migrating Guests from Physical to Virtual Machines...................................................................194
9.5.1 Requirements for Migrating a Workload..............................................................................194
9.5.2 Using the p2vassist Utility.....................................................................................................195
9.5.3 Troubleshooting P2V Problems.............................................................................................198
10 Using HP Serviceguard with Integrity VM............................................................201
10.1 Introduction to HP Serviceguard................................................................................................201
10.2 VMs as Serviceguard Nodes........................................................................................................201
10.2.1 VMs on Separate VM Hosts.................................................................................................202
10.2.2 VMs on the Same VM Host.................................................................................................202
10.2.3 VMs and Separate Physical Nodes......................................................................................203
10.2.4 Usage Considerations..........................................................................................................204
10.2.5 Cluster Reformation............................................................................................................204
10.2.6 Availability...........................................................................................................................205
10.2.7 Storage Considerations........................................................................................................205
10.2.8 Limitations Associated with These Configurations............................................................205
10.2.9 Additional Considerations for VMs as Serviceguard Nodes Configurations.....................206
10.2.10 Creating the VMs as Serviceguard Nodes Configuration.................................................206
10.2.11 Modifying and Managing the Virtual Machine and the Cluster.......................................207
10.3 VMs as Serviceguard Packages....................................................................................................208
10.3.1 Cluster Components............................................................................................................208
10.3.2 VM Hosts as Serviceguard Nodes.......................................................................................209
10.3.3 Network Components.........................................................................................................210
10.3.4 Storage Considerations........................................................................................................210
10.3.5 Limitations Associated with These Configurations............................................................211
10.3.6 Operating System and Software Requirements..................................................................212
10.3.7 Creating the Package Configuration...................................................................................212
10.3.8 Managing the Package with Serviceguard Commands......................................................213
10.3.9 Online VM Migration..........................................................................................................214
10.3.10 Maintenance Mode............................................................................................................215
10.3.11 Serviceguard Virtual Machine Application Monitoring...................................................215
10.4 Combining the VMs as Serviceguard Package and Node Models..............................................215
10.5 Migrating VMs That are Using Logical Volume Backing Stores.................................................216
10.5.1 Creating and Configuring VMs as Serviceguard Nodes Having SLVM Backing Storage...219
10.5.2 Creating and Configuring VMs as Serviceguard Packages Having SLVM Backing
Storage...........................................................................................................................................220
10.5.3 Online Migration of VMs with SLVM Virtual Disks in VM as Serviceguard Package
Configurations Requires Manual Reconfiguration.......................................................................221
10.6 Troubleshooting Network Problems When Using Serviceguard................................................222
8 Table of Contents