6.3
Table Of Contents
- Administrator Guide
- Contents
- About This Book
- Getting Started
- Introduction
- Configuring vCenter Server Heartbeat
- Server Configuration Wizard
- Configuring the Machine Identity
- Configuring the Server Role
- Configuring the Client Connection Port
- Configuring Channel Routing
- Configuring the Default Channel Port
- Configuring Low Bandwidth Module
- Configuring Public IP Addressing
- Configuring for Identical Nodes
- Configuring for Non-Identical Nodes
- Managing vCenter Server Heartbeat License Keys
- Configuring Message Queue Logs
- Configuring the Maximum Disk Usage
- System Administration and Management
- Server Protection
- Network Protection
- Application Protection
- Status and Control
- vCenter Server Heartbeat Console
- About vCenter Server Heartbeat Console
- Work with Groups and Pairs
- Add, Edit, Move, and Remove Pairs in VCenter Server Heartbeat Groups
- Review the Status of vCenter Server Heartbeat Groups and Pairs
- Exit vCenter Server Heartbeat Console
- Shut Down Windows Without Stopping vCenter Server Heartbeat
- Performance Protection
- Data Protection
- Data Protection Overview
- Other Administrative Tasks
- Troubleshooting
- Troubleshooting Unexpected Behaviors
- Two Active Servers
- Two Passive Servers
- Synchronization Failures
- Registry Status is Out of Sync
- Channel Drops
- Subnet or Routing Issues
- MaxDiskUsage Errors
- MaxDiskUsage Error Messages
- [L9]Exceeded the Maximum Disk Usage (VCChannelExceededMaxDiskUsageException)
- [L9]Exceeded the Maximum Disk Usage on the ACTIVE Server
- [L9]Exceeded the Maximum Disk Usage on the PASSIVE Server
- [L20]Out of Disk Space (VCChannelOutOfDiskSpaceException)
- Application Slowdown
- Poor Application Performance
- Both Servers Can Accommodate the Initial Load but the Load Has Increased
- One Server Can Provide Adequate Resource Support, but the Other Cannot
- Scheduled Resource Intensive Tasks
- Glossary
VMware, Inc. 67
Chapter 10 Troubleshooting
Two Passive Servers
PrimaryandSecondaryserversarebothpassiveatthesametime.Thissituationisseriousandmustbe
resolvedimmediately.
Symptom
Youareunabletoconnecttoprotectedapplications,andifyouconfiguredalerts,youreceivenotificationthat
replicationisnotfunctioningproperly.
Causes
Theconditionoftwopassiveserversresultsfromasuddenfailureontheactiveserver.Examples:
AnunexpectedterminationoftheNeverfailServerR2service
Atransientpowerfailure
AserverresettriggeredfromthePowerorResetbutton
Anuncleanshutdown.Followinganuncleanshutdown,anactiveserverassumesthepassiveroleto
isolateitselffromthenetworkuntilthefailureisinvestigated.
TheactiveserverfailsbeforethehandshakethatestablishestheVMwareChannelconnection.Thepassive
servercannotdetectthattheactiveserverisnotrespondingwhenthefailureoccursandcannotdetermine
theconditionoftheactiveserver.Theactiveserversuffersatransientfailureandthepassiveservercannot
respond
byfailingoverintotheactiverole,leavingbothserversinthepassiverole.
BothPrimaryandSecondaryserversexperienceapoweroutagesimultaneously,forexample,theyusethe
samepowersourceandneitherisattachedtoaUPS.Afailovercannotoccurandwhentheserversare
restarted,eachdisplaysthefollowingerrormessage:
Cannot start replication because previous run did not shutdown properly. Check configuration.
Resolution
Twopassiveserverspreventusersfromaccessingtheprotectedapplicationandshouldberesolved
immediately.
To resolve two passive servers
1 Determinetheactiveserver.
2ShutdownvCenterServerHeartbeatonbothservers.Leaveanyprotectedapplicationsrunningonthe
servertomakeactive.
3Ontheservertomakeactive,starttheServerConfigurationwizard,andselectthe
activerole.Donot
changetheidentity(PrimaryorSecondary).
4Ontheservertomakepassive,starttheServerConfigurationwizard,andconfirmthepassiveserver.Do
notchangetheidentity(PrimaryorSecondary).
5Restartthepassiveserver.Allprotectedapplicationservicesstop.
6StartvCenterServerHeartbeatonbothservers.
N
OTEIfyouattempttostartvCenterServerHeartbeatwithoutreconfiguringoneserverinthepairasactive,
vCenterServerHeartbeatrespondswiththefollowingwarning:
[U16] Serious configuration mismatch between the two servers. Please reconfigure so there is one
and only one Primary, and one and only one Active.