CHAPTER4.3 Flashcards
Monitoring is essential for
Optimizing network infrastructure server performance
* Troubleshooting servers
- Accessibility
- To identify failure of any component that may lead to service
unavailability or degraded performance
Capacity
To ensure availability of adequate amount of resources and
prevent service unavailability or degraded performance
Performance
To evaluate efficiency and utilization of components and identify
bottlenecks
Security
- To ensure confidentiality, integrity, and availability of
infrastructure
Reasons for
Performance
Monitoring
Reasons for
Performance
Monitoring
Reasons for
Performance
Monitoring
Identifying issues
The following causes may cause performance bottlenecks
- Subsystems are insufficient
- Subsystems are not sharing workloads evenly and need to be
balanced
- Subsystem is malfunctioning and needs to be replaced.
A program is monopolizing a particular resource.
* A subsystem is incorrectly configured.
improve system and application performance by finetuning the way a system uses resources. Such as
Tuning Windows operating system performance by disabling
unnecessary features
* Tuning processor scheduling to be optimised for background
services
Performance data are used to
Understand server workload characteristics
* Observe changes and trends to help plan for upgrades.
* Monitor the effects of changes or other performance
tuning efforts.
Performance baseline
a measure of specified resource
behavior during normal activity.
Performance baseline
Helps to identify and resolve system bottlenecks.
* Used to watch for long-term changes in usage patterns.
When collecting data for baselining,
Determine type and timing of system load.
* Collect data over extended period of low, average and peak
usage.
Monitoring Methods and Tools
Historical:
* Event Viewer
* Performance logs
Monitoring Methods and Tools
Real time:
* Task Manager
* Performance Monitor
*Resource Monitor
Resource monitor
provides
an in-depth look at the realtime performance of server
how is Resource monitor
used
Used to monitor
performance of CPU, disk,
network and memory
how is Resource monitor
used
Help to identify and resolve
resource conflicts and
bottlenecks.
Performance
Monitor
Used to examine how
active programs affect a
server’s performance
Performance
Monitor enable viewing of
Real-time or current
performance statistics
* historical data gathered
through the use of Data
Collector Sets
Data Collector Sets
enable collection of performancerelated and other system statistics for analysis
Types of data collectors
Performance counters
* Event trace data
* System configuration information
Alerts
An alert notifies the administrator of events that have
occurred or performance thresholds that have been
reached
When creating an alert, configure the following settings:
Alert when
* Alert Action
* Alert Task
