VMware VCENTER SERVER 4.0 - GETTING STARTED UPDATE 1 Specifications Page 181
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This chapter includes the following topics:
“Troubleshooting Unexpected Behaviors” on page 181
“Two Active Servers” on page 181
“Two Passive Servers” on page 183
“Synchronization Failures” on page 184
“Registry Status is Out of Sync” on page 186
“Channel Drops” on page 186
“Subnet or Routing Issues ” on page 190
“MaxDiskUsage Errors” on page 190
“MaxDiskUsage Error Messages” on page 191
Troubleshooting Unexpected Behaviors
The following unexpected behaviors illustrate symptoms, causes and resolution for a given scenario.
Two Active Servers
When two identical active servers are live on the same network, vCenter Server Heartbeat refers to the
condition as split-brain syndrome. Two active servers do not occur by design and when detected, must be
resolved immediately.
Symptoms
Split-brain syndrome is identified by the following symptoms:
Both servers in the pair are running and in an active state. The task bar icons display P / A (Primary and
active) and S / A (Secondary and active).
An IP address conflict occurs on a server pair running vCenter Server Heartbeat on the Principal (Public)
IP address.
A name conflict occurs on a server pair running vCenter Server Heartbeat. In a WAN environment the
Primary and Secondary servers connect to the network using different IP addresses. However, if the
servers are running with the same name and are visible to each other across the WAN, a name conflict
occurs.
Clients (for example, Outlook) cannot connect to the server running vCenter Server Heartbeat.
Troubleshooting
13
- Reference Guide 1
- 2 VMware, Inc 2
- Contents 3
- 6 Server Protection 123 4
- 7 Network Protection 131 4
- 8 Application Protection 135 5
- 9 Status and Control 153 5
- 10 Performance Protection 159 5
- 11 Data Protection 163 5
- 13 Troubleshooting 181 6
- About This Book 7
- Support Offerings 8
- VMware Professional Services 8
- Getting Started 9
- 10 VMware, Inc 10
- Introduction 11
- Server Protection 12
- Network Protection 12
- Application Protection 12
- Performance Protection 13
- Data Protection 14
- Communications 14
- Switchover Process 15
- Auto Switchovers 16
- Failover Process 17
- 18 VMware, Inc 18
- Installation 19
- 20 VMware, Inc 20
- Implementation 21
- Common Requirements 22
- Server Architecture Options 22
- Physical to Virtual (P2V) 23
- Physical to Physical (P2P) 23
- Cloning Technology Options 24
- Application Component Options 25
- Network Options 25
- Primary Server 26
- Secondary Server 26
- Antivirus Recommendations 27
- Deployment Options Summary 28
- VMware, Inc. 29 29
- 30 VMware, Inc 30
- Overview 31
- Installation Process 31
- VMware, Inc. 33 33
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- VMware, Inc. 35 35
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- VMware, Inc. 105 105
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- VMware, Inc. 107 107
- 108 VMware, Inc 108
- Add the VMware License 109
- 110 VMware, Inc 110
- VMware, Inc. 111 111
- 112 VMware, Inc 112
- VMware, Inc. 113 113
- Server Configuration Wizard 114
- Configuring the Server Role 115
- 116 VMware, Inc 116
- Enabling Network Monitoring 117
- 118 VMware, Inc 118
- VMware, Inc. 119 119
- 120 VMware, Inc 120
- VMware, Inc. 121 121
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- VMware, Inc. 125 125
- Chapter 6 Server Protection 125
- Start Replicating 126
- Stop Replicating 126
- Forcing a Switchover 127
- Recovering From a Failover 128
- VMware, Inc. 129 129
- 130 VMware, Inc 130
- 132 VMware, Inc 132
- VMware, Inc. 133 133
- Chapter 7 Network Protection 133
- 134 VMware, Inc 134
- 136 VMware, Inc 136
- Configuring Applications 137
- Reviewing the Application Log 138
- VMware, Inc. 139 139
- Removing an Application 140
- Services Tab 141
- Adding a Service 142
- Editing a Service 143
- 144 VMware, Inc 144
- Removing a Service 145
- Tasks Tab 146
- Editing a Task 147
- Removing a Task 148
- Starting a Task Manually 148
- Plugins Tab 149
- Installing a Plug-In 150
- Editing a Plug-in 151
- Uninstalling a Plug-in 152
- Status and Control 153
- 154 VMware, Inc 154
- VMware, Inc. 155 155
- Chapter 9 Status and Control 155
- 156 VMware, Inc 156
- VMware, Inc. 157 157
- 158 VMware, Inc 158
- Editing a Rule 160
- VMware, Inc. 161 161
- Checking a Rule Condition 162
- Data Protection Overview 164
- Automatic Filter Discovery 164
- VMware, Inc. 165 165
- Chapter 11 Data Protection 165
- 166 VMware, Inc 166
- Configuring Max Disk Usage 167
- Determining Effective Filters 168
- VMware, Inc. 169 169
- 170 VMware, Inc 170
- VMware, Inc. 171 171
- 2Click Full Registry Check 172
- Other Administrative Tasks 173
- Configuring Alert Reporting 174
- VMware, Inc. 175 175
- Test Alert Reporting 176
- Configuring Event Log Files 177
- Reviewing Event Logs 178
- VMware, Inc. 179 179
- Icon Purpose 180
- Troubleshooting 181
- Resolution 182
- Two Passive Servers 183
- Synchronization Failures 184
- VMware, Inc. 185 185
- Chapter 13 Troubleshooting 185
- Channel Drops 186
- VMware, Inc. 187 187
- Firewall Connection 188
- Resolutions 189
- Subnet or Routing Issues 190
- MaxDiskUsage Errors 190
- MaxDiskUsage Error Messages 191
- 192 VMware, Inc 192
- Application Slowdown 193
- Poor Application Performance 193
- 194 VMware, Inc 194
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- VMware, Inc. 197 197
- 198 VMware, Inc 198
- Glossary 199
- D Data Replication 200
- F Failover 200
- G Graceful (Clean) Shutdown 200
- VMware, Inc. 201 201
- Q Quality of Service (QoS) 202
- S Security Identifier (SID) 202
- V VMware Channel 203
- 204 VMware, Inc 204
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