SHO enables you to compare different optimization scenarios. You can create multiple scenarios and compare them to decide the best optimization solution for your infrastructure. The Scenario Comparison page displays the following information:
This section compares the scenarios based on:
Field | Description |
---|---|
Scenario Type | The type of Group used for optimization analysis. |
SPECint used for CPU Normalization | Indicates whether SPECint has been used for CPU normalization. |
Workloads placed based on: | The type of VM placement methodology used (Peak utilization, 95th percentile utilization, or configured capacity). |
Number of VMs | The number of VMs present. |
Number of vDisks | The number of vDisks present. |
Number of Constraints | The total number of constraints defined in each of the scenario. |
CPU Headroom (%) | The percentage of CPU headroom. |
Memory Headroom (%) | The percentage of memory headroom. |
Days to Threshold | The number of days before the first resource (CPU or memory) will run out of capacity. |
CPU Subscription (%) |
The percentage of CPU subscription. Subscription of resources is the percentage of capacity allocated to a VM out of the total capacity reserved for the VM. |
Memory Subscription (%) |
The percentage of memory oversubscription. Subscription of resources is the percentage of capacity allocated to a VM out of the total capacity reserved for the VM. |
Storage Subscription (%) |
The percentage of storage oversubscription. Subscription of resources is the percentage of capacity allocated to a VM out of the total capacity reserved for the VM. |
Cluster Constraints | The number of Cluster constraints defined in each of the scenario. |
This section displays the performance of the selected Group before optimization. This section compares the scenarios based on:
Field | Description |
---|---|
Average CPU Utilization (%) | The average CPU utilization percentage in each scenario. |
Average Memory Utilization (%) | The average memory utilization percentage in each scenario. |
Average Network Utilization (%) | The average network utilization percentage in each scenario. |
Number of Hosts | The total number of hosts that are available in each scenario. |
Number of Datastores | The total number of Datastores that are available in each scenario. |
This section displays the performance of the selected Group after optimization. This section compares the scenarios based on:
Field | Description |
---|---|
Average CPU Utilization (%) | The average CPU utilization percentage in each scenario. |
Average Memory Utilization (%) | The average memory utilization percentage in each scenario. |
Average Network Utilization (%) | The average network utilization percentage in each scenario. |
Number of Hosts | The total number of hosts that are available in each scenario. |
Number of Datastores | The total number of Datastores that are available in each scenario. |
This section displays the changes in the resource utilization after optimization. It compares the scenarios based on:
Field | Description |
---|---|
Change in CPU Utilization | The percentage change in CPU utilization. |
Change in Memory Utilization | The percentage change in memory utilization. |
Change in Network Utilization | The percentage change in network utilization. |
Change in Server Count | The percentage change in the server count. |
Change in Datastore Count | The percentage change in the Datastore count. |