6.5

Table Of Contents
Monitoring ESXi Hosts 10
Starting with the vSphere 4.0 release, vCenter Server makes performance charts for CPU, memory, disk I/O,
networking, and storage available.
You can view performance charts by using the vSphere Web Client and read about them in the vSphere
Monitoring documentation. You can also perform some monitoring of your ESXi system by using vCLI
commands.
This chapter includes the following topics:
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“Using resxtop for Performance Monitoring,” on page 161
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“Managing Diagnostic Partitions,” on page 161
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“Managing Core Dumps,” on page 162
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“Conguring ESXi Syslog Services,” on page 164
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“Managing ESXi SNMP Agents,” on page 166
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“Retrieving Hardware Information,” on page 169
Using resxtop for Performance Monitoring
You can use the resxtop vCLI command to examine how ESXi systems use resources.
You can use the command in the default interactive mode or in batch mode. The Resource Management
documentation explains how to use resxtop and provides information about available commands and
display statistics.
If you cannot reach the host with the resxtop vCLI command, you might be able to use the esxtop command
in the ESXi Shell instead. See Geing Started with vSphere Command-Line Interfaces for information on
accessing the shell.
I resxtop and esxtop are supported only on Linux.
Managing Diagnostic Partitions
Your host must have a diagnostic partition, also referred to as dump partition, to store core dumps for
debugging and for use by VMware technical support.
A diagnostic partition is on the local disk where the ESXi software is installed by default. You can also use a
diagnostic partition on a remote disk shared between multiple hosts. If you want to use a network
diagnostic partition, you can install ESXi Dump Collector and congure the networked partition. See
“Manage Core Dumps with ESXi Dump Collector,” on page 163.
VMware, Inc.
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