If you are looking to enable this feature:
Note: "HP" split into HP Inc. and Hewlett Packard Enterprise (HPE). SmartCache is an enterprise server product, so it is officially branded as HPE SmartCache.
HP (HPE) SmartCache is a controller-based caching solution for ProLiant servers that optimizes performance by caching frequently accessed data onto low-latency SSDs. While some high-end controllers include this feature by default, most standard P-series controllers require a license key for activation. HP SmartCache License Options
Licenses are typically per-server and non-transferable. They are available in the following formats:
Single-Server License (LTU): A physical shipment containing a license entitlement certificate, EULA, and installation card for one server.
Flexible-Quantity License (LTU): Allows the purchase of multiple licenses with a single activation key, delivered via physical shipment.
Electronic License (E-LTU): Same as flexible-quantity but delivered via email for faster deployment.
Evaluation License: A 60-day free trial key is often available to test features before purchasing a permanent license. Compatibility & Requirements hp smartcache license key top
Supported Servers: HPE ProLiant Gen8, Gen9, and Gen10 servers, as well as Synergy compute modules.
Controllers: Supported on P-series controllers such as the P420, P421, P440ar, P822, and P721m.
Hardware Prerequisite: Requires a minimum of 1 GB Flash-Backed Write Cache (FBWC) to enable SmartCache.
Management Tool: Configuration is performed via the HPE Smart Storage Administrator (SSA) or UEFI System Utilities. How to Install a License Key
HP Smart Array Advanced Pack Evaluation License Key · GitHub
For detailed information on HP (now HPE) SmartCache licensing, the most comprehensive technical resource is the HP SmartCache Technology White Paper
, which explains the architecture, performance benefits, and licensing requirements. Licensing Overview If you are looking to enable this feature:
HPE SmartCache is a controller-based caching solution that requires a license key for activation on many Smart Array P-class controllers. Hewlett Packard Enterprise Requirements
: One license is needed for every server deployed. Licenses are non-transferable. Included Models : For newer hardware, such as the HPE Smart Array P816i-a SR Gen10 Gen10 Plus
or later models, the SmartCache license is often included and pre-installed. License Types Single-Server License (LTU)
: A physical shipment containing a license entitlement certificate and a key installation card. Flexible-Quantity (LTU/E-LTU)
: Allows purchasing multiple licenses with a single activation key for mass deployment, available in both physical and electronic formats. Hewlett Packard Enterprise Key Retrieval and Activation
If you have purchased a license, you must redeem the entitlement certificate to receive the actual activation key. Redemption
: Certificates must be redeemed online or via fax to obtain the 25-digit license activation key. : Registered keys can be managed and downloaded from the My HPE Software Center Note: "HP" split into HP Inc
by signing in with an HPE account and checking the "Activation History" tab. Installation : Keys are typically entered via the HPE Smart Storage Administrator (SSA) or the older Array Configuration Utility (ACU) Hewlett Packard Enterprise Trial Licenses
HPE historically offered a 60-day trial version of SmartCache available for download on their website, allowing users to test performance gains (up to 4x faster for "hot" data) before purchasing a permanent key. www.bitcon.be HP SmartCache technology - Lanclan
For out-of-warranty servers (e.g., Gen8 or Gen9), buying from a verified HPE parts reseller is often cheaper. Search for Part Number 704213-B21 (HP SmartCache SAAP License). Legitimate resellers will ask for your server's serial number to generate a valid key.
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.
(If you want, I can check compatibility for a specific HPE controller model and firmware.)
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SmartCache automatically migrates your "hot data" (most frequently accessed data) to the SSD tier. To the operating system, the entire logical drive appears to run at SSD speeds, even though 80-90% of the data resides on cheap HDDs.
However, this feature is not activated by default. You must purchase and install an HP SmartCache License Key to unlock the feature. The "Top" designation in our keyword refers to acquiring the correct, full-featured license that unlocks maximum read/write acceleration without artificial software limitations.