xiii
Restoring a VM to its previous state ..................................................................................... 129
Deleting a snapshot .................................................................................................. 129
Snapshot Templates ........................................................................................................ 130
Creating a template from a snapshot ............................................................................ 130
Exporting a snapshot to a template .............................................................................. 131
Advanced Notes for Quiesced Snapshots ...................................................................... 131
Coping with machine failures ...................................................................................................... 133
Member failures ............................................................................................................... 133
Master failures ................................................................................................................. 133
Pool failures .................................................................................................................... 134
Coping with Failure due to Configuration Errors ....................................................................... 134
Physical Machine failure ..................................................................................................... 134
Monitoring and managing XenServer .................................................... 136
Alerts ..................................................................................................................................... 136
Customizing Alerts ............................................................................................................ 137
Configuring Email Alerts ..................................................................................................... 138
Custom Fields and Tags ............................................................................................................ 139
Custom Searches ..................................................................................................................... 139
Determining throughput of physical bus adapters ............................................................................ 139
Troubleshooting ........................................................................................ 140
XenServer host logs .................................................................................................................. 140
Sending host log messages to a central server ....................................................................... 140
XenCenter logs ........................................................................................................................ 141
Troubleshooting connections between XenCenter and the XenServer host ............................................. 141
A. Command line interface ..................................................................... 142
Basic xe syntax ....................................................................................................................... 142
Special characters and syntax ..................................................................................................... 143
