Good option for HPE ProLiant shops needing straightforward SSD caching with vendor support and integration — particularly when workloads are read-heavy. Evaluate total cost (licenses + SSDs + management), ensure controller/firmware compatibility, and verify write-cache protection options before purchase.
It unlocks the capability to scale cache pools to maximum controller capacity, enabling multi-terabyte SSD caching tiers. Hardware Compatibility and Prerequisites
This occurs if the FBWC supercapacitor fails or loses charge. The controller disables write-back caching immediately to protect data. Replace the battery module to restore caching functionality. hp smartcache license key top
When the SSD cache reaches capacity, the controller employs a modified Least Recently Used (LRU) algorithm to evict cold data blocks, ensuring optimal utilization of the flash space. HP SmartCache Licensing Mechanics
: Every physical host running SmartCache requires its own distinct license entitlement. Good option for HPE ProLiant shops needing straightforward
SmartCache acts as a bridge between high-capacity, lower-speed hard disk drives (HDDs) and high-performance solid-state drives (SSDs).
One license is required for every server where the feature is deployed. A single server license can cover multiple Smart Array controllers within that same physical chassis, but it cannot be shared across different servers. Hardware Compatibility and Prerequisites This occurs if the
For production environments, purchasing an official license is the only way to ensure software compliance and technical support.
[ HPE Smart Array Controller ] │ ├───► [ Standard Features ] ──► Basic RAID, Flash-Backed Write Cache (FBWC) │ └───► [ License Key Applied ] ──► Activates SmartCache Advanced Tier ├── SSD Read/Write Acceleration ├── Multi-Array Support └── High-Capacity Cache Pools Why a Premium License Key is Required
Standard commercial SKUs (such as D7S85A or D7S85AAE for electronic delivery) correspond to the HP SmartCache entitlement for secure, single-server deployment.
[ Applications / OS ] │ ▼ ┌────────────────────────────────────────┐ │ HPE Smart Array RAID Controller │ │ ┌──────────────────────────────────┐ │ │ │ Flash-Backed Write Cache (FBWC) │ │ │ └──────────────────────────────────┘ │ │ │ │ │ ┌────────┴────────┐ │ │ ▼ ▼ │ │ ┌───────────┐ ┌───────────┐ │ │ │ SSD Cache │ │ HDD Bulk │ │ │ │ ("Hot" Data)│ │ Storage │ │ │ └───────────┘ └───────────┘ │ └────────────────────────────────────────┘ Key Architecture Components