HP Integrity Virtual Machines 4.2: Installation, Configuration, and Administration
9.7.3 Troubleshooting Dynamic Memory Problems......................................................................156
9.7.3.1 Dynamic Memory Restrictions......................................................................................157
9.7.3.2 VM Host Resource Considerations...............................................................................157
9.7.3.3 Guest Resource Considerations.....................................................................................157
9.7.3.4 Specify Sufficient Guest Memory..................................................................................157
9.7.3.5 Actual Memory Allocations Might Differ.....................................................................158
9.7.3.6 Enable Dynamic Memory on the Guest and on the VM Host......................................158
9.7.3.7 Upgrade the Guest Kit When Upgrading Integrity VM...............................................159
9.7.4 Automatic Memory Reallocation..........................................................................................159
9.7.4.1 Enabling Automatic Memory Reallocation on the VM Host........................................159
9.7.4.2 Managing Automatic Memory Reallocation from the VM Host..................................159
9.7.4.2.1 Enabling Automatic Memory Reallocation on a VM............................................160
9.7.4.2.2 Managing Automatic Memory Reallocation on a VM..........................................160
9.7.4.3 Viewing Automatic Memory Reallocation....................................................................160
9.8 Integrity VM Log Files...................................................................................................................161
9.9 Managing the Device Database.....................................................................................................161
9.9.1 The Device Database File.......................................................................................................161
9.9.2 Using the hpvmdevmgmt Command...................................................................................162
9.9.2.1 Sharing Devices.............................................................................................................162
9.9.2.2 Replacing Devices.........................................................................................................163
9.9.2.3 Deleting Devices............................................................................................................163
9.9.2.4 Restricting VM Host Devices........................................................................................163
9.9.3 Inspect and Edit the Repair Script.........................................................................................164
9.10 HP AVIO Stor EFI Driver Enumeration Policy............................................................................164
10 Migrating Virtual Machines....................................................................................165
10.1 Introduction to Virtual Machine Migration.................................................................................165
10.1.1 Reasons for Migrating an Online Guest..............................................................................167
10.1.2 Reasons for Migrating Virtual Machines Offline................................................................168
10.2 Command Line Interface for Online and Offline Migration.......................................................168
10.2.1 Using the hpvmmigrate Command...................................................................................169
10.2.2 Examples of the hpvmmigrate Command........................................................................172
10.2.3 Using the hpvmstatus Command to See Migration Details............................................173
10.2.4 Options to hpvmmodify Command for Online Migration.................................................173
10.2.5 Using the hpvminfo Command in the Guest.....................................................................174
10.3 VM Host and Virtual Machine Configuration Considerations...................................................174
10.3.1 VM Host Requirements and Setup......................................................................................175
10.3.1.1 VM Host Processors for Online Migration..................................................................175
10.3.1.2 Private Network Setup................................................................................................176
10.3.1.3 Conventions for Using target-hpvm-migr Names for Private Networks.............177
10.3.1.4 Using NTP on VM Hosts.............................................................................................178
10.3.2 SSH Setup Between the VM Hosts......................................................................................178
10.3.2.1 Troubleshooting SSH Key Setup.................................................................................178
10.3.2.2 Using a Third-Party SSH.............................................................................................179
10.3.3 Virtual Machine Requirements and Setup..........................................................................179
10.3.3.1 Setting Online Migration Phase Time-Out Values......................................................179
10.3.3.2 Migrations Might Time Out and Need to be Restarted..............................................180
10.3.3.3 Guest Storage Device Shareable Attribute not Propagated During Online
Migration..................................................................................................................................180
10.3.3.4 Using NTP on the VM Guests.....................................................................................180
10.3.3.5 Marking a Guest Not Runnable...................................................................................181
10.3.4 Restrictions and Limitations of Online VM Migration........................................................181
10.4 Migrating Serviceguard Packaged Guests and Serviceguard Cluster Nodes.............................181
10.5 Migrating Guests from Physical to Virtual Machines.................................................................182
Table of Contents 7