Data is written to the SSD first. Highly accelerates writes, but requires a battery-backed controller cache (FBWC) to safeguard data in flight. Troubleshooting Common License Key Issues
Activating your license key is a two-stage process: generating the key on the HPE portal, and then applying it to the physical server controller. Phase 1: Generating the License Key via the HPE Portal
If the controller's FBWC capacitor is charging, degraded, or dead, SmartCache may automatically disable itself to prevent data loss. Check the battery health status inside HPE iLO or SSA.
The Complete Guide to HPE SmartCache: Architecture, Benefits, and License Key Management
ssacli ctrl slot=0 set licensekey=XXXXX-XXXXX-XXXXX-XXXXX-XXXXX hpe smartcache license key
Ensure you have unassigned enterprise SSDs installed in the server drive bays.
The utility will not let you configure caching if it cannot detect unassigned, compatible SSDs attached to the controller.
In many data center environments, a significant performance bottleneck lies not with the CPU or memory, but with storage. Traditional hard disk drives (HDDs) provide vast capacity but lag in access speed, slowing down critical business applications. is a controller-based caching solution designed to solve this problem within a Direct Attached Storage (DAS) environment.
Typing errors or applying a key meant for a different controller generation (e.g., trying to use a Gen8 SmartCache key on a Gen10 SmartArray controller). Data is written to the SSD first
This is the easiest method for local administration within an operating system or via the Intelligent Provisioning boot menu. Launch .
What (e.g., Gen9, Gen10) and Smart Array model are you using? Which Operating System is running on the server?
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If an SSD in the SmartCache pool fails or exhibits predictive failure warnings, the controller will halt caching operations to protect primary data. Phase 1: Generating the License Key via the
You must buy an HPE SmartCache entitlement tracking number or Electronic License To Use (E-LTU) from an authorized HPE reseller.
ssacli ctrl slot=1 add licensekey=XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Use code with caution. Verify that the license was successfully accepted: ssacli ctrl slot=1 show license Use code with caution. Configuring SmartCache Post-License Activation
Licensing issues can disrupt caching operations. Below are common errors and their solutions. Invalid License Key Error