For servers still under warranty or support contract:
HP SmartCache is not free. While the RAID controller supports it natively in firmware, the feature is locked behind a license key. Without the key, the "Create SmartCache" option in the BIOS or HP SSA (Smart Storage Administrator) remains greyed out.
The HP SmartCache License Key is a 20-25 character alphanumeric string tied to the specific serial number of your server (or the Controller’s Serial Number). hp smartcache license key
Instead of dedicating SSDs solely to read-cache (like older models) or spending a fortune on a full all-flash array, SmartCache clones the most frequently accessed "hot" data from the HDD array onto a reserved partition of an SSD.
The result? Near-SSD performance for your active workloads while maintaining the bulk storage capacity of spinning disks. For servers still under warranty or support contract:
Compatible Controllers (Legacy & Current):
If you are remote, use the command line. The result
After purchase, HP/HPE will email you a license entitlement. You will need to visit the HPE Licensing Portal (HPE.com > Support > Licensing) .
You will enter:
The portal generates a digital file (.XML or .BIN) or a text string. This is your unique HP SmartCache license key.