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
Reference Guide
78 VMware, Inc.
Application Slowdown
Operationsperformedbytheapplicationcantakelongertocomplete,andinturn,canaffectthetimerequired
tologintoaremoteclient,ortoopenorsaveafile.ThisistrueforbothserversrunningvCenterServer
Heartbeatandforserversrunninganyotherapplication.vCenterServer
Heartbeatcanmonitorsystem
performancecountersanddisplaywarningswhenpredefinedthresholdsareexceeded,butitdoesnotactively
managesystemresourcesforotherapplications.Likeanyotherapplication,italsorequiresafiniteamountof
resourcesforitsownoperationsinadditiontotheresourcesusedbytheoperating
systemandtheprotected
application.
ThemachineshostingvCenterServerHeartbeatmustmeetrecommendedhardwarerequirementsandmust
bepowerfulenoughtosupporttheload,theprotectedapplications,andanyothercriticalapplications
runningonthesameserverpair.
Poor Application Performance
Whenapplicationsarecompetingforresources,oneormoreapplicationscanperformpoorly.
Symptom
Neitherserverinthepaircanaccommodatetheloadplaceduponitduringnormaloperation.
Cause
ThePrimaryserverʹsresourceusageinoneormoreareasreachedclosetothemaximumbeforevCenterServer
Heartbeatwasinstalled.
Resolution
HeartbeatDiagnosticscanreporttheseconditionsandissueswarningsifCPUusageormemoryusageexceed
acertainpercentageoftheavailableresource.InformationprovidedbyHeartbeatDiagnosticscanminimize
theriskofapplicationslowdownbyidentifyingneededhardwareupgradesonthePrimaryserver.
Both Servers Can Accommodate the Initial Load but the Load Has Increased
Anysoftwareinstalledonaserverorworkstationconsumesafiniteamountofsystemresourceswhenitruns
anditmustsharetheresourcesituseswithanyotherapplicationsrunningatthesametime.Increaseddemand
causedbyadditionaluseractivitycanhaveanimpactontheserverperformance.
Symptom
Increaseduseractivityslowsapplicationresponsetime.
Causes
TheserverpairoperatesnormallywhenvCenterServerHeartbeatisfirstinstalled,butperformancedecreases
duetoincreaseduseractivity.Forexample,usersontheSQLServersystemincreaseorthetypicalusage
patternbecomesmoreintense.Thiscanbeagradualandsustainedincreaseovertime,ortransientifa
specific
eventtriggersatemporarysurgeinuseractivity.
Resolution
Ifthesituationissporadic,itcancorrectitselfwhentheloaddecreases.Iftheincreaseissustainedand
permanent,upgradetheserverhardware.
One Server Can Provide Adequate Resource Support, but the Other Cannot
Ifthetotalresourcerequirementsoftheapplicationsexceedtheavailablephysicalresources,theoperating
systemattemptstoprovideresources,butleavessomeapplicationsunderresourced.Whenthissituation
occurs,anapplicationcannotobtainenoughmemorytooperatenormally,oraprocessmustwaitbefore
accessingtheharddisk