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Foglight for VMware 5.8.2 - User and Reference Guide

Using Foglight for VMware
Introducing the virtual infrastructure Navigation basics Interacting with Foglight for VMware VMware Performance Agent configuration
Reference
Views
VMware Alarms views VMware Explorer views VMware Modeler views VMware VirtualCenter views VMware Environment views Other views
Rules
Agent Rules Cluster Rules Datacenter Rules Datastore Rules Resource Pool Rules ESX Server Rules VirtualCenter Rules Virtual Machine Rules VMW Stale Data Management Rule Virtual Switch Rules
Appendix: Alarm Messages Appendix: Metrics

VMW Cluster Network IO

Purpose

This rule monitors for spikes and dramatic drops in network IO for a cluster. This rule is disabled by default, and can be enabled as required.

Scope

VMWCluster

 
Table 200. Rule Definition
Conditions
State
Action

The network usage is no more than 2.2 standard deviations (NumSTDevs) from the mean network usage.

Normal

None

The network usage is more than 2.2 but no more than 2.8 standard deviations from the mean network usage.

Warning

None

The network usage is more than 2.8 standard deviations from the mean network usage.

Critical

None

VMW Cluster Percent Ready

Purpose

This rule fires an alarm to report that when a virtual machine within the cluster is requesting CPU cycles from the ESX Server on which it is running, it is not receiving them some percentage of the time. This impacts the performance on the virtual machine.

This rule is disabled by default, and can be enabled, as required.

Scope

VMWCluster

 
Table 201. Rule Definition
Conditions
State
Action

When the virtual machine requests CPU cycles, it is only not receiving them 2 percent or less of the time.

Normal

None

When the virtual machine requests CPU cycles, it is not receiving them greater than 2 percent but no greater than 8 percent of the time.

Warning

None

When the virtual machine requests CPU cycles, it is not receiving them greater than 8 percent but no greater than 12 percent of the time.

Critical

Send email to VMware administrator

When the virtual machine requests CPU cycles, it is not receiving them greater than 12 percent of the time.

Fatal

Send email to VMware administrator

VMW Cluster Redundancy Verification

Purpose

This rule fires an alarm to report that if an ESX Server within the cluster fails, the remaining servers in the cluster may not or do not have enough available CPU and/or memory to handle the increased workload.

Scope

VMWCluster

 
Table 202. Rule Definition
Conditions
State
Action

The cluster has sufficient redundant CPU and memory capacity to handle the failure of a single ESX Server.

Normal

None

Although the cluster can handle the failure of a single ESX Server, either the resulting combined CPU utilization or the resulting combined memory utilization on the remaining servers, or both, would be beyond the warning threshold. The resulting alarm message will indicate the values of both of the new combined utilizations.

Warning

None

If an ESX Server within the cluster fails, the remaining servers do not have the capacity to handle the increased workload. The resulting alarm message will indicate the values of both of the new combined utilizations.

Critical

None

Datacenter Rules

This section lists and describes the datacenter rules. These rules are disabled by default, and can be enabled as required.

Rule in this section:

•
VMW Datacenter CPU Utilization
•
VMW Datacenter Disk IO
•
VMW Datacenter Memory Utilization
•
VMW Datacenter Network IO
•
VMW Datacenter Percent Ready
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