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17. Working with System Virtual Machines 229
17.1. The System VM Template ....................................................................................... 229
17.2. Multiple System VM Support for VMware ................................................................. 229
17.3. Console Proxy ........................................................................................................ 229
17.3.1. Changing the Console Proxy SSL Certificate and Domain ............................... 230
17.4. Virtual Router ......................................................................................................... 231
17.4.1. Configuring the Virtual Router ....................................................................... 231
17.4.2. Upgrading a Virtual Router with System Service Offerings .............................. 232
17.4.3. Best Practices for Virtual Routers ................................................................. 232
17.5. Secondary Storage VM ........................................................................................... 232
18. System Reliability and High Availability 233
18.1. HA for Management Server ..................................................................................... 233
18.2. HA-Enabled Virtual Machines .................................................................................. 233
18.3. Dedicated HA Hosts ............................................................................................... 233
18.4. Primary Storage Outage and Data Loss ................................................................... 234
18.5. Secondary Storage Outage and Data Loss .............................................................. 234
18.6. Limiting the Rate of API Requests ........................................................................... 234
18.6.1. Configuring the API Request Rate ................................................................ 234
18.6.2. Limitations on API Throttling ......................................................................... 235
19. Managing the Cloud 237
19.1. Using Tags to Organize Resources in the Cloud ....................................................... 237
19.2. Setting Configuration Parameters ............................................................................ 238
19.2.1. About Configuration Parameters ................................................................... 238
19.2.2. Setting Global Configuration Parameters ....................................................... 239
19.2.3. Setting Local Configuration Parameters ......................................................... 239
19.2.4. Granular Global Configuration Parameters ..................................................... 240
19.3. Changing the Database Configuration ...................................................................... 242
19.4. Administrator Alerts ................................................................................................. 242
19.4.1. Customizing Alerts with Global Configuration Settings .................................... 243
19.4.2. Sending Alerts to External SNMP and Syslog Managers ................................. 243
19.5. Customizing the Network Domain Name .................................................................. 245
19.6. Stopping and Restarting the Management Server ..................................................... 246
20. CloudPlatform API 247
20.1. Provisioning and Authentication API ........................................................................ 247
20.2. Allocators ............................................................................................................... 247
20.3. User Data and Meta Data ....................................................................................... 247
21. Tuning 249
21.1. Performance Monitoring .......................................................................................... 249
21.2. Increase Management Server Maximum Memory ..................................................... 249
21.3. Set Database Buffer Pool Size ................................................................................ 249
21.4. Set and Monitor Total VM Limits per Host ................................................................ 250
21.5. Configure XenServer dom0 Memory ........................................................................ 250
22. Troubleshooting 251
22.1. Events .................................................................................................................... 251
22.1.1. Event Logs .................................................................................................. 251
22.1.2. Event Notification ......................................................................................... 251
22.1.3. Standard Events .......................................................................................... 252
22.1.4. Long Running Job Events ............................................................................ 252
22.1.5. Event Log Queries ....................................................................................... 253
22.1.6. Deleting and Archiving Events and Alerts ...................................................... 253
22.2. Working with Server Logs ....................................................................................... 254