6.5
Table Of Contents
- Administrator Guide
- Contents
- About This Book
- Introduction
- Configuring vCenter Server Heartbeat
- Server Protection
- Checking the Server Pair Status
- Monitoring the Status of Servers
- Configuring Heartbeat Settings
- Network Protection
- Application Protection
- Applications: Summary Tab
- Resetting the Application Health Status
- Viewing Application Status
- Setting the Application Timeout Exception
- Remove an Application
- Manually Stop and Start Applications
- Configuring Applications
- Application Maintenance Mode
- Reviewing the State of an Application
- Reviewing the Applications Log
- Filtering Application Log Entries
- Applications: Services Tab
- Applications: Tasks Tab
- Applications: Plug-ins Tab
- Applications: Summary Tab
- Status and Control
- About vCenter Server Heartbeat Console
- Working with Groups
- Working with Pairs in vCenter Server Heartbeat Groups
- Reviewing the Status of vCenter Server Heartbeat Groups and Pairs
- Exiting vCenter Server Heartbeat Console
- Shutting Down Windows Without Stopping vCenter Server Heartbeat
- Controlled Shutdown
- vSphere Web Client Plug-in
- Uninstalling vCenter Server Heartbeat
- Performance Protection
- Data Protection
- Alerts and Events
- Troubleshooting
- Two Active or Two Passive Servers
- Synchronization Failures
- Registry Status is Out-of-Sync
- Channel Drops
- Performance Issues
- Passive Server Does Not Meet Minimum Hardware Requirements
- Hardware or Driver Issues on VMware Channel NICs
- Firewall Connection
- Channel Fails to Connect After Configuring Firewall Ports
- Incorrect VMware Channel Configuration
- VMware vCenter Server Heartbeat Packet Filter Is Enabled on the Channel NIC(s)
- Subnet or Routing Issues
- MaxDiskUsage Errors
- Application Slowdown
- Glossary
The machines hosting vCenter Server Heartbeat must meet recommended hardware requirements and must
be powerful enough to support the load, the protected applications, and any other critical applications running
on the same server pair.
Poor Application Performance
When applications are competing for resources, one or more applications can perform poorly.
Problem
Neither server in the pair can accommodate the load placed upon it during normal operation.
Cause
The Primary server's resource usage in one or more areas reached close to the maximum before vCenter Server
Heartbeat was installed.
Solution
◆
Heartbeat Diagnostics can report these conditions and issues warnings if CPU usage or memory usage
exceed a certain percentage of the available resource. Information provided by Heartbeat Diagnostics can
minimize the risk of application slowdown by identifying needed hardware upgrades on the Primary
server.
Both Servers Can Accommodate the Initial Load but the Load Has Increased
Any software installed on a server or workstation consumes a nite amount of system resources when it runs
and it must share the resources it uses with any other applications running at the same time. Increased demand
caused by additional user activity can have an impact on the server performance.
Problem
Increased user activity slows application response time.
Cause
The server pair operates normally when vCenter Server Heartbeat is rst installed, but performance decreases
due to increased user activity. For example, users on the SQL Server system increase or the typical usage pattern
becomes more intense. This can be a gradual and sustained increase over time, or transient if a specic event
triggers a temporary surge in user activity.
Solution
◆
If the situation is sporadic, it can correct itself when the load decreases. If the increase is sustained and
permanent, upgrade the server hardware.
One Server Can Provide Adequate Resource Support, but the Other Cannot
If the total resource requirements of the applications exceed the available physical resources, the operating
system attempts to provide resources, but leaves some applications under-resourced. When this situation
occurs, an application cannot obtain enough memory to operate normally, or a process must wait before
accessing the hard disk.
Problem
Applications operate normally when the Primary server is active but operate slowly when the Secondary server
is active (or the reverse).
98 VMware, Inc.
Administrator Guide