Identifying the bottleneck in E2E view

Analyze the configuration of the infrastructure components in the E2E topology view.

1. Navigate to the E2E view in one of the following ways:
   • On the Analytics tab, perform a search for the target resources, and from the returned search results, select the target resource for analysis and click Show E2E View.
   • On the dashboard, the report widgets display the number of affected resources that exceeded the threshold values. For example, the VMs/Host report displays the number of affected VMs, and when you click the number link, a new window displays a list of monitored VMs. Select the resources to analyze and click Show E2E View.
2. In the E2E View, analyze the server-related and storage-related components to identify the resources causing performance problems.
   • Click Server View to get a server-oriented view of the business system configuration. The key components to monitor while analyzing the server performance are:
     • CPU
     • Memory
     • NIC
     • HBA
     • Disk
   • Click Storage View to get a storage-oriented view of the business system configuration. The key components to monitor while analyzing the storage performance are:
     • Port
     • Processor
     • Cache
     • Pool
     • Parity Group
   In the following example, the alert indicators display on the VMs. When you analyze the VMs in the Server View, you can view alerts associated with the CPU server components.
   
   Note: The E2E View does not show component information such as CPU, memory, and disk space for Windows and Linux hosts.
3. To analyze the resource associated with an alert, click the resource icon and select Verify Bottleneck.
   For example, to check whether CPU is the bottleneck candidate, click the CPU icon and select Verify Bottleneck.
4. The Analyze Bottleneck window displays the performance trend reports of the bottleneck candidate and the resource used as the base point of analysis. If the performance charts display similar trend patterns in the same time period, you can assume that the selected resource is the bottleneck candidate. If not, repeat the analysis for other resources with alerts in the Verify Bottleneck window.
   For example, in the Verify Bottleneck window, the bottleneck candidate (CPU) appears in a graph in the upper pane, and the VM where the problem occurred appears in a graph in the lower pane. The performance charts display similar trend patterns in the same time period, which confirms that the CPU is the bottleneck candidate.
   
5. You can also use the resource sharing percentage to identify the bottleneck in the shared infrastructure. On the E2E view tool bar, from the Configuration Information menu, select an option that displays the highest resource sharing percentage. Hover over the icons in the E2E view to see the shared percentage of each resource. Resources with a high sharing rate are the potential bottleneck candidates.
   For example, when no alerts display on the dashboard, or in the E2E view, and when you cannot identify the bottleneck candidate using the Analyze Bottleneck window, use the resource sharing percentage to identify the affected resources in the shared infrastructure.
   Select Configuration Status from the Configuration Information menu, to see information about the drives in the parity group, such as Drive Status and Used Spare Count. This tool is useful for parity groups with flash drives. Click on the Parity Group resource icon from the E2E View and select Show Detail to see details for the SSD Used Endurance Indicator and the FMD Battery Life Indicator.