To start Extended Adaptive Cache and increase your system's performance, purchase the Read Cache Device.
Once the Read Cache Device has been inserted into a disk slot on the subsystem, Extended Adaptive Cache will be activated. There is no user-controlled on or off switch. It takes approximately an hour for Extended Adaptive Cache to monitor the data flow and populate the Read Cache Device. After an hour of running Extended Adaptive Cache, your system should show improved performance (depending on your current workload) and increased I/O throughput.