Even without a license, a minimum of 512MB Flash Backed Write Cache (FBWC) is required to enable RAID 5, 50, 6, and 60. How to Install a License Key
This feature accelerates application workloads by caching "hot" data onto lower-latency SSDs. hp smart array p420i license key
It is important to note that licensing requirements for the P420i have evolved through firmware updates: Even without a license, a minimum of 512MB
The is an enterprise-class RAID controller integrated into many HPE ProLiant Gen8 servers. While it offers robust standard performance, certain high-end features like RAID 6 , RAID 60 , and HP SmartCache historically required a specific license key for activation . Unlocking Advanced Features While it offers robust standard performance
If you are using an older firmware or need to activate , you can manage licenses through the following tools: HPE Smart array P420i controller specification
Advanced Data Mirroring for enhanced redundancy. Changes in Licensing Requirements