6.0.1
Table Of Contents
- vSphere Monitoring and Performance
- Contents
- About vSphere Monitoring and Performance
- Updated Information
- Monitoring Inventory Objects with Performance Charts
- Performance Chart Types
- Data Counters
- Metric Groups in vSphere
- Data Collection Intervals
- Data Collection Levels
- View Performance Charts
- Performance Charts Options Available Under the View Menu
- Overview Performance Charts
- Clusters
- Datacenters
- Datastores
- Disk Space (Data Counters)
- Disk Space (File Types)
- Disk Space (Virtual Machines)
- Storage I/O Control Normalized Latency
- Storage I/O Control Aggregate IOPs
- Storage I/O Control Activity
- Average Device Latency per Host
- Maximum Queue Depth per Host
- Read IOPs per Host
- Write IOPs per Host
- Average Read Latency per Virtual Machine Disk
- Average Write Latency per Virtual Machine Disk
- Read IOPs per Virtual Machine Disk
- Write IOPs per Virtual Machine Disk
- Virtual Machine Observed Latency per Datastore
- Hosts
- Resource Pools
- vApps
- Virtual Machines
- CPU (%)
- CPU Usage (MHz)
- Disk (Average)
- Disk (Rate)
- Disk (Number)
- Virtual Disk Requests (Number)
- Virtual Disk Rate (KBps)
- Memory (Usage)
- Memory (Balloon)
- Memory (Swap Rate)
- Memory (Data Counters)
- Network (Usage)
- Network (Rate)
- Network (Packets)
- Disk Space (Data Counters)
- Disk Space (Datastores)
- Disk Space (File Types)
- Fault Tolerance Performance Counters
- Working with Advanced and Custom Charts
- Troubleshoot and Enhance Performance
- Monitoring Guest Operating System Performance
- Monitoring Host Health Status
- Monitoring Events, Alarms, and Automated Actions
- View Events
- View System Logs
- Export Events Data
- View Triggered Alarms and Alarm Definitions
- Live Refresh of Recent Tasks and Alarms
- Set an Alarm
- Acknowledge Triggered Alarms
- Reset Triggered Event Alarms
- Preconfigured vSphere Alarms
- Monitoring Solutions with the vCenter Solutions Manager
- Monitoring the Health of Services and Nodes
- Performance Monitoring Utilities: resxtop and esxtop
- Using the vimtop Plug-In to Monitor the Resource Usage of Services
- Monitoring Networked Devices with SNMP and vSphere
- Using SNMP Traps with vCenter Server
- Configure SNMP for ESXi
- SNMP Diagnostics
- Monitor Guest Operating Systems with SNMP
- VMware MIB Files
- SNMPv2 Diagnostic Counters
- System Log Files
- Index
Monitoring Inventory Objects with
Performance Charts 1
The vSphere statistics subsystem collects data on the resource usage of inventory objects. Data on a wide
range of metrics is collected at frequent intervals, processed, and archived in the vCenter Server database.
You can access statistical information through command-line monitoring utilities or by viewing
performance charts in the vSphere Web Client.
Counters and Metric Groups
vCenter Server systems and hosts use data counters to query for statistics. A data counter is a unit of
information relevant to a given inventory object or device. Each counter collects data for a different statistic
in a metric group. For example, the disk metric group includes separate data counters to collect data for disk
read rate, disk write rate, and disk usage. Statistics for each counter are rolled up after a specified collection
interval. Each data counter consists of several attributes that are used to determine the statistical value
collected.
For a complete list and description of performance metrics, see the vSphere API Reference.
NOTE Counters that are introduced in later versions might not contain data from hosts of earlier versions.
For details, see the VMware Knowledge Base.
Collection Levels and Collection Intervals
Collection levels determine the number of counters for which data is gathered during each collection
interval. Collection intervals determine the time period during which statistics are aggregated, calculated,
rolled up, and archived in the vCenter Server database. Together, the collection interval and collection level
determine how much statistical data is collected and stored in your vCenter Server database.
Data Availability
Real-time data appears in the performance charts only for hosts and virtual machines that are powered on.
Historical data appears for all supported inventory objects, but might be unavailable during certain
circumstances.
This chapter includes the following topics:
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“Performance Chart Types,” on page 10
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“Data Counters,” on page 10
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“Metric Groups in vSphere,” on page 11
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“Data Collection Intervals,” on page 12
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“Data Collection Levels,” on page 13
VMware, Inc.
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