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Foglight Capacity Manager 5.7.1 - User Guide

Recalculating Results

Foglight Capacity Manager allows you to get the latest analytical results for the Current Capacity view and the Resource Utilization view, based on the data collected by the VMware Performance Agents. To get the latest analytic results, click the Recalculate menu on the actions bar.
 
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NOTE: Results populated in Current Capacity > Clusters, Resource Utilization > Clusters, and Resource Utilization > Hosts and Workload are impacted if the High Availability (HA) policy is enabled in the vCenter®.
The Recalculation Results dialog includes the following recalculating results:
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Current Capacity: Capacity of the vCenter® or datacenter, average/maximum slot size for clusters, available slots, and constraint.
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Resource Utilization: History data and forecasting data
 
 

Current Capacity Tab

The Current Capacity view displays information about the current capacity of a selected virtual center or datacenter. It includes the following three panes:
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VirtualCenter/Hosts Overview pane: Provides details about Current Capacity and Constraint, and allows you to select the Datastore information and Slot Size.
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Clusters/Hosts pane: Consists of two tabs:
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Clusters: Provides detailed information about clusters that are available in the selected virtual center or datacenter.
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Hosts: Provides detailed information about hosts that are available in the selected cluster.
To access the Current Capacity view:
1
On the navigation panel, under Dashboards, click VMware > VMware Environment.
The VMware Environment dashboard opens.
2
Use the Group selector located at the top of the dashboard to select the virtual environment that you want to monitor.
3
On the Menu bar, click the Current Management tab, and click the Current Capacity tab.
The Current Capacity view appears at the bottom of the VMware Environment dashboard.
 
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NOTE: Enabling or disabling the HA policy, which is configured in vCenter®, is only applicable for the Clusters tab in the Current Capacity view. If the HA policy is enabled for a cluster, Foglight Capacity Manager calculates the cluster resources and reserve the cluster resources that are required to satisfy the HA policy. A green check mark appears in the HA column when the HA policy is enabled.

VirtualCenter/Hosts Overview pane

After selecting a virtual center or datacenter by using the Group selector located at the top of the dashboard, Foglight Capacity Manager calculates the capacity of selected center in the background and displays the following information on the VirtualCenter/Hosts Overview pane:
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Current Capacity: Include information about the following metrics: Running VMs, Available VMs, and Total VMs.
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Constraint: Include information about the following metrics: Cluster Name and Time to Full.
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Datastore(s) Included: Allows you to select from the drop-down list the datastores.
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NOTE: The Clusters/Hosts pane is automatically updated to reflect the selection made.
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Slot Size: Allows you to select from the drop-down list the size of the virtual machine (the slot size).
The following options are available: Based on VM, Cluster Average (default option), Cluster Maximum, and Custom Size.
For details, see “Calculating Slot Size Based on VM” and “Calculating Slot Size Using Custom Size”.
 
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NOTE: The Clusters/Hosts pane is automatically updated to reflect the selection made.

Calculating Slot Size Based on VM

After selecting Based on VM from the Slot Size list menu, the button next to the list menu will be changed to Select a VM.
To recalculate the slot size Based on VM:
1
In the Overview pane, select Based on VM from the Slot Size drop-down list.
The Select a VM button appears on the right side of the Slot Size drop-down list.
2
Click Select a VM.
The VM Selection Dialog box appears.
3
Select a virtual machine from the table, or by typing its name in the Search box.
4
Click OK.
The VM Selection Dialog box closes and the Clusters/Hosts pane is updated to reflect this change.
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