The Dashboard displays resource data for compute nodes, networks and block storage. You can see a visual representation of the state of each resource. An explanation of the resource data is provided below to help you interpret the Dashboard data.
Dashboard information for both the top and bottom graphs is refreshed every 30 seconds. The top graphs display resource usage.
The graphs along the bottom of the Dashboard represent dynamically refreshed data presented in two ways:
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Just-in-time data: Every 30 seconds, the data point on the right side of the graph (labeled now) is updated, representing the resources that have been successfully created or deleted since the top of the current hour. For example, at 1:15pm, the now indicator shows the resources created or deleted in the 15 minutes since 1:00pm.
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Historical data: The remainder of the graph shows the hourly totals for the 23 hours prior to the current hour. At the top of each hour, the oldest data point is dropped and the remaining data points shift to the left. A new now indicator is started with a value of zero. This shift provides a consistent view of historical activity.
Compute nodes host virtual machine instances, providing the CPU, memory and storage resources that instances require. The Dashboard displays horizontal graphs that indicate the amount of compute resources consumed by all instances across all compute nodes. A green graph indicates that there are compute nodes available for instance consumption.
When a resource enters a critical state, then 90% or more of the resource has been consumed. The horizontal usage graph color changes from green to red when a critical state is reached. You should plan to add additional compute nodes when a usage graph enters a critical state.
Compute node storage differs from the other Storage type shown on the Dashboard. Compute node storage is the amount of space an instance consumes when it is created. Compute node storage cannot be added from the Storage section of the CloudSystem Console. You must add additional compute nodes to provide additional compute node storage.
The Compute graph on the bottom portion of the screen tracks the number of instances created or deleted during a 24-hour period. These instances could be created in Foundation, Enterprise or from REST APIs. The graph shows the total number of all instances created or deleted, regardless of their point of origin. You can use this information to track activity and use the results to plan for additional resource needs.
See also About Dashboard
The Dashboard displays information about the availability of provider and private network IP addresses. Provider networks enable you to provision existing data center networks to the cloud. Private networks enable groups of end-users to exclusively share virtual machine instances provisioned inside the cloud using VLANs that you select for that purpose.
The Provider ports horizontal graph shows the amount of Provider Network IP addresses that are assigned to instances. A port is defined as a specific IP address, created from the subnet allocation pool on the Provider Network screen.
The Private network horizontal graph shows the number of Private network IP addresses that are assigned to instances. Private network VLAN IDs and ranges are defined on the Private Network screen of the CloudSystem Console. The OpenStack Networking service assigns VLANs from this pool to Private Networks when they are created by end users using the CloudSystem Portal.
A green graph indicates that network IP addresses are available to attach to instances. When network availability reaches a critical state (90% or more of the available network IP addresses are consumed), then the graph changes to red. You should plan to add additional networks when a usage graph enters a critical state. See Add Provider Network and Add VLAN IDs (for Private Network assignments).
The Network graph at the bottom of the screen tracks the number of provider and private networks created or deleted over a 24–hour period. You can use this information to track activity and use the results to plan for additional resource needs.
See also About Dashboard.
The Storage section of the Dashboard shows the overall capacity and usage of the storage systems registered for block storage use. Block storage is the storage used for the data disks attached to instances.
The usage graph reflects the consumption of block storage by all sources. When the block storage consumption enters a critical state (90% or more of the available capacity), then the graph changes to red. You should plan to add additional storage resources, if block storage resources enter a critical state. See Add Block Storage Drivers.
You can use the volume create and delete activity graphs at the bottom of the screen to help plan for additional resource requirements.