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Foglight for VMware 5.6.15.1 - 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 VirtualCenters 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

Planning for Virtual Machine Migrations

The VMware Modeler dashboard provides a mechanism you can use to view the impact that migrating a virtual machine will have on a target ESX Host. This dashboard takes up the entire display area of the Foglight for VMware browser interface. It can be accessed in two different ways:
•
If you are in the VMware Explorer dashboard, you can access the VMware Modeler dashboard by using the Run Migration Modeler link under the Actions heading on the action panel to the right of the Foglight for VMware browser interface. For more information about the action panel with respect to Foglight for VMware tasks and actions, refer to Accessing VMware actions and tasks .
•
From within any dashboard, you can access the VMware Modeler dashboard by clicking the VMware Modeler link under Dashboards > Virtual > VMware in the navigation panel.
Figure 77. Migration Modeler
The VMware Modeler dashboard provides four graphs that show current and projected numbers, for CPU and memory utilization and network and disk activity, on the target ESX Host over the time range specified in the VMware Explorer dashboard.
The blue area on the graphs represents current consumption or activity on the target ESX Host. The orange area specifies projected worst case consumption or activity. The red dotted line specifies the target ESX Host capacity with respect to the corresponding metric. For reference information about the data appearing on this dashboard, see VMware Modeler Views .
To run the Migration Modeler:
1
From the VirtualCenter list, select the VirtualCenter within which the migration will take place.
2
From the Virtual Machine list, select the virtual machine that is to be migrated.
3
From the Target Host list, select the ESX Host that will be the target for the migration.
When using the VMware Modeler dashboard, you should extend the time range in order to better assess the long term impact of the potential migration. For specific information about adjusting dashboard time ranges, refer to the Foglight for VMware User Guide.

Creating OS Mapping Rules

OS mapping involves associating various versions and editions of a particular operating system with a common OS name. You configure OS mapping rules using the Administration tab on the VMware Environment dashboard. This helps Foglight for VMware map the OS names reported by Foglight for VMware to those reported by physical OS monitoring, so that you can view all Windows machines, all Linux machines, and so on.
For reference information about this view, see OS Mapping view .
To configure OS mapping rules:
•
On the VMware Environment dashboard, open the Administration tab and click Configure OS Mapping.
The OS Mapping view appears.
Figure 78. OS Mapping view
To add an OS mapping rule:
1
In the OS Mapping view, click Add.
The Add OS Mapping Rule dialog box appears.
Figure 79. Add OS Mapping Rule dialog box
2
In the Add OS Mapping Rule dialog box, in the Matching Text box, type the OS name with its edition and/or version number to help Foglight for VMware identify the operating system.
3
In the Common OS Name list, select the shorter common OS name.
4
Click Save.
Foglight for VMware matches the shorter common OS name with the text you provided in Step 2.
To delete an OS mapping rule:
1
In the OS Mapping view, select an OS mapping rule by clicking the associated check box in the left column.
2
Click Delete.
3
Click Save.
To configure the priority of an OS mapping rule:
•
In the OS Mapping view, move a rule one level up by clicking the up arrow in the rule’s row.
•
Move a rule one level down by clicking the down arrow in the rule’s row.

Reviewing object instances and limits and deleting expired data

Foglight collects data from monitored environments and creates a data model in real-time. The resulting topology model consists of nodes where each node is an object instance of a particular object type. Each type of monitoring environment can have a unique set of object types. Foglight for VMware includes a set of topology object types and their definitions. When Foglight collects data from your VMware environment, it builds the topology model that consists of the instances of the object types defined by Foglight for VMware. By default, a monitored environment can result in up to 50,000 object instances being created by a single object type. This value is controlled by the foglight.limit.instances registry variable.
Registry variables have a global default value and type-specific scoped values. This means that different object types can have different instance limits.
Explore the Instances and Limits view to see the existing VMware object types. To access this view, on the VMware Environment dashboard, open the Administration tab, and click Review Instances and Limits.
Figure 80. Instances and Limits
The Instances and Limits view displays the list of the existing VMware object types, and for each type it shows the type name, instance limit, instance count, instance limit utilization, and the current status given as a highest severity level associated with an instance of that type. This information can give you insight into the size of your database and whether additional adjustments are required to improve your system performance. For example, if an object type results in a high number of object instances, this may result in performance bottlenecks. To prevent them, check if any of these are updated recently and, if not, delete them from the database.
To view the list of existing registry variables or to edit them, click Edit Registry Variable in the top-left corner. For complete information about registry variables, see the Administration and Configuration Help.
For reference information about this view, see Instances and Limits view .
To review and delete expired data:
1
On the VMware Environment dashboard, open the Administration tab, and click Review Expired Data.
The Expired Data Removal Wizard appears with the Choose Type page open.
Figure 81. Expired Data Removal Wizard
2
Select a category of object type that you want to review, and type the number of days during which the object instances were not updated.
For example, to view the object instances that are not updated in 30 days and are created when monitoring virtual machines, select Virtual Machine, and in the Minimum days since last updated box, type 30.
3
Click Next.
The Expired Data Removal Wizard refreshes, showing the Review Expired Data Found page.
4
Observe the results.
•
If you want to delete all of the object instances, click Next.
•
If you want to modify your search, click Previous, make your changes, and observe your results again. For example, to show fewer instances, click Previous, and increase the time period. When satisfied, click Next.
•
If you do not want to delete any objects, click Next.
The Expired Data Removal Wizard refreshes, showing the Confirm Deletion page.
Figure 82. Confirm Deletion page
5
To delete the selected object instances, select the check box, and click Finish.

Managing chargeback

In an IT environment with a high number of physical and virtual machines, it is often important to determine the true cost of virtual machines in order to adequately plan resources for system utilization. The Chargeback tab available on the VMware Environment dashboard provides standard models, allowing you to get insight into host machine usage within a data center.
Figure 83. Chargeback tab
For complete information about this tab, see the Managing Chargeback User Guide.
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