Hypervisors page in the OpenStack view

Hypervisors are the hosts contained in Host Aggregates, and represent hosts as present in the virtualized environment on which OpenStack is built. This is a common entity between OpenStack ETL and TrueSight Capacity Optimization ETL. Hypervisors can be of type VMWare Cluster, VMWare Host, or KVM Host.

The Hypervisors page in the OpenStack view displays information for all the Hypervisors available on a host in the selected zones. 

You can access this page in the TrueSight console using one of the following ways:

  • Select Capacity > Views > Cloud > OpenStack and click the Hypervisors tab
  • In the OpenStack > Cloud page, navigate to the Related Information panel and click the Hypervisors link.

The following figure shows the Hypervisors view page displaying the hypervisor related information.

An example of the Hypervisors page

For more information, see:

Viewing the OpenStack Hypervisors table

The Hypervisors table lists the following information for each Hypervisor in the available zone in the selected cloud. By default, some columns are hidden. You can show or hide columns using the action menuthat is located next to the Host Aggregates table title. For more information, see Sorting a table in the TrueSight console.

Hypervisors table: Description of columns

Column
Description
Statistical Type Metrics 
NameName of the Hypervisor. Clicking on one of the hypervisors in this column takes you to the respective virtualization technology hypervisor details page. For more information, see host details.Last Value NAME
Host AggregatesName of the Host Aggregates that are associated to the Hypervisor.Last ValueRelationship HA_CONTAINS_HY is used to get the NAME of the host aggregate
System TypeDisplays the system type of Hypervisor.Last Value  
CPU [GHz]Total CPU capacity of the Hypervisor, measured in Gigahertz.Last Value  TOTAL_CPU_MHZ  
CPU Used [GHz]Total CPU used by the Hypervisor, measured in Gigahertz.95th PercentileCPU_UTILMHZ  
CPU Util [%]Percentage of total CPU utilized by the Hypervisor.95th PercentileCPU_UTIL 
CPU Trend [%]The daily growth rate of CPU utilization of the Hypervisor.TrendTrendbased on CPU_UTIL
Memory [GB]Total physical memory capacity of the Hypervisor, measured in Gigabytes.Last Value  TOTAL_REAL_MEM 
Memory Used [GB]Total physical memory used by the Hypervisor, measured in Gigabytes.95th Percentile MEM_CONSUMED 
Memory Util [%]Percentage of total physical memory utilized by the Hypervisor.95th Percentile MEM_UTIL  
Memory Trend [%]Daily growth rate of memory utilization of the Hypervisor.TrendTrendbased on MEM_UTIL
Ephemeral Storage Size [GB] Total capacity of ephemeral storage, measure in GigabytesLast ValueTOTAL_EPHEMERAL_DISK_SIZE
Ephemeral Provisioned Storage [GB] Total ephemeral storage provisioned to the VMs in openstack measured in Gigabytes95th PercentileTOTAL_EPHEMERAL_DISK_PROVISIONED
Datastore [GB]Total capacity of the datastore, measured in Gigabytes.Last Value  TOTAL_DSTORE_SIZE
Datastore Used [GB]Total used space in the datastore, measured in Gigabytes.95th Percentile TOTAL_DSTORE_USED 
DatastoreUtil[%]Percentage of total datastore capacity used by the Hypervisor.95th Percentile TOTAL_DSTORE_UTIL  
Datastore Trend [%]DailygrowthrateofdatastoreutilizationoftheHypervisor.TrendTrendbased on DSTORE_UTIL
CPU Overcommit Ratio

Ratio of memory allocated to the VMs to the total physical memory available in the hypervisor.

Computed based on last valuesSUM (VM.TOTAL_REAL_MEM), TOTAL_REAL_MEM 
Memory Overcommit Ratio

Ratio of memory allocated to the VMs to the total physical memory available in the hypervisor.

Computed based on last valuesSUM (VM.TOTAL_REAL_MEM), TOTAL_REAL_MEM  
Ephemeral Storage Overcommit Ratio Ratio of ephemeral storage provisioned to the total capacity of ephemeral storageComputed metricTOTAL_EPHEMERAL_DISK_SIZE, TOTAL_EPHEMERAL_DISK_PROVISIONED
Powered On VMsNumber of Virtual Machines that are powered on.95th Percentile GM_ON_NUM
Spare VMsEstimated number of additional virtual machines that can be placed in the hypervisor, calculated based on the remaining CPU, Memory and Storage capacity. For more information, see Spare VM calculation in Recalculating the spare VM basis.Computed by AFS using total capacity and 95th Utilizations of CPU, memory,  and storage   IND_SPARE_VM
Spare VM basis

Custom or Typical is displayed. An average VM for cluster based on the past 30 days is used for Typical, whereas Custom indicates that custom VM data (Average utilization of CPU, Memory, and Datastore ) is specified. To edit the value that has been set, click the value displayed in this column.

For more information, see Spare VM calculation in !in Recalculating the spare VM basis.

NATYPICAL or CUSTOM
Days To SaturationThe projected amount of time before one of the resources (CPU, MEMORY, STORAGE) in the hypervisor runs out of available capacity. Number of days to saturation for the least available resource is reported here.Computed by AFS using total capacity and 95th Utilizations of CPU, memory, and storage   IND_DAYS_TO_SATURATION 
Bottleneck ResourceName of the resource that has either saturated or will saturate in the next 30 days. Bottleneck resource can be CPU, MEMORY or STORAGE. The field is blank if none of the resources has saturated, or will saturate.Computed by AFS using total capacity and 95th utilization of CPU, Memory and StorageIND_BNECK_RESOURCE

For more information on the Days to Saturation and other indicator parameters used for metric computations in this view, see Indicators.

Using data filters and other controls in tables

You can sort and filter the information that is displayed in tables to suit your need. For instance, you can show or hide columns, export the data to Excel, select a different cloud and region, clear the selected cloud and region, and so on.

For more information, see Sorting a table in the TrueSight console and Using filtering options in views in the TrueSight console.

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