Activating the license unlocks different caching policies based on the server generation:

SmartCache identifies "hot data" (frequently accessed information) and moves it from your slower HDD-based bulk storage to lower-latency SSDs. Workload Acceleration: Can improve application performance by up to Write Policies: Write-Through (accelerates reads by writing to both cache and disk) and Write-Back

Your server reads data directly from the spinning drives, resulting in high latency and slower application response times. With Smart Cache: Frequently accessed ("hot") data is copied to the fast SSD. The system reads from the SSD, drastically reducing latency and increasing IOPS (Input/Output Operations Per Second).

High-speed SSDs used to store copies of frequently accessed data.

He watched the performance monitor. The latency lines, which had been spiked in a jagged red mess, suddenly plummeted. The IOPS (Input/Output Operations Per Second) surged. "Check it now," Elias messaged the CTO.