## Topology Maintenance

The Storage Automated Diagnostic Environment's graphical storage area network (SAN) interface displays all fabric components and the state of those components. Fabric components include switch ports, storage controllers, and disks, along with more specialized components such as fans, batteries, power, and volumes.

SAN agents collect counter information based on error messages and telemetry information. This information is then used in the topology drawing to indicate link failures.

Note -

Brocade switch configurations using segmented loop (SL) zones can be monitored and diagnosed, but the topology views do not show connections between devices.

To view a topology, you must first execute the ras_install command to start the Storage Automated Diagnostic Environment services, then run the `config_solution` command to create the topology, find the devices, and run the agents.

### Displaying the Topology Maintenance window

1. Click the Administration link in the Storage Automated Diagnostic Environment main window.

Administration is divided into four sections: Notification, General Maintenance, Topology Maintenance, and System Utilities.

2. Click Topology Maintenance.

The Topology Maintenance window is displayed.

### Displaying a Topology

- To view a topology, you must first execute the ras_install command to start the Storage Automated Diagnostic Environment services, then run the `config_solution` command to create the topology, find the devices, and run the agents.