You can use System Manager to manage Hardware Cache modules.
Note: Flash Cache is known as Hardware Cache in System Manager.
More information
Enabling or disabling Flash Cache modules
You can enable or disable the external cache functionality for a storage system that has a Flash Cache module installed by using System Manager. You can enable Flash Cache modules based on the workload requirements of your storage system.
How Flash Cache modules work
Using Flash Cache modules improves the performance of a storage system. The impact of using Flash Cache modules is displayed on the Hardware Cache window.
Hardware Cache window
You can use the Hardware Cache window to enable or disable Flash Cache modules for a storage system that has a Flash Cache module installed. You can also view the read-workload statistics.