Here’s a professional, clear, and legally mindful draft for requesting or documenting an HPE Smart Cache License Key. You can adapt it depending on whether you're writing to a vendor, internal IT team, or filling out a procurement form.
Subject: Request / Provision of HPE Smart Cache License Key – [Insert PO/System/Serial Number]
To: [HPE Licensing Support / Reseller / Internal IT Procurement]
Background & Need
We require a valid HPE Smart Cache License Key to activate the Smart Cache feature on [insert HPE server model and serial number, e.g., HPE ProLiant DL380 Gen10, S/N: XXXXXX]. This license is essential for enabling intelligent I/O caching to improve storage performance and reduce latency for our production workloads.
License Details Required
Action Requested
Please generate and provide the corresponding activation key(s). The key must be compatible with [OS & HPE Smart Array Controller firmware version, if known].
License Key Format (expected)
Typically, HPE Smart Cache license keys are alphanumeric (e.g., 5×5 character groups). Please send the key(s) with explicit instructions for installation via:
ssacli or hpssacli)Confirmation & Compliance
By issuing this license key, you confirm that our organization holds a valid entitlement or purchase order [Insert PO #]. We will use the key solely on the designated hardware in accordance with HPE’s standard license terms.
Contact & System Info
Please reply with the license key or advise of any additional requirements (e.g., proof of purchase, re-host request).
Short version (e.g., for a ticket or internal memo):
Request: HPE Smart Cache License Key for [Server Serial #].
Entitlement: [PO # or Entitlement ID].
Need: Activate Smart Cache on HPE ProLiant [model] running [OS].
Please provide: License key in 5×5 alphanumeric format and activation instructions for iLO/SSA.
Compliance: Key will be used only on licensed hardware per HPE terms.
HPE Smart Array SR SmartCache is a controller-based caching solution that uses SSDs to accelerate application workloads
. While older controllers required a purchased license key, newer Gen10 Plus and later models include this feature as standard. Hewlett Packard Enterprise License Acquisition and SKU Numbers
To use SmartCache on supported Gen8, Gen9, or standard Gen10 controllers, you must purchase a license. A license is required for every server deployed. Hewlett Packard Enterprise License Type Description SKU / Part Number Single-Server LTU One license for one server, physical shipment. Flexible-Quantity LTU
Multiple licenses with a single activation key, physical shipment. Flexible-Quantity E-LTU
Multiple licenses with a single activation key, delivered via email. How to Activate Your Key
Once you have purchased a license, you will receive an entitlement certificate that must be redeemed online at the HPE My Software Center to obtain the actual 25-character activation key. Hewlett Packard Enterprise Open HPE SSA : Launch the HPE Smart Storage Administrator (SSA) utility on your server. Select Controller
: Choose the specific Smart Array controller you wish to activate. Manage License : Navigate to Manage License Keys Add License Key Hpe Smart Cache License Key
: Type or paste your 25-character alphanumeric key and click to activate. Google Groups HPE Smart Array SR SmartCache QuickSpecs | HPE
The HPE Smart Array SR SmartCache License activates a controller-based caching feature that uses low-latency Solid State Drives (SSDs) to accelerate application performance by storing frequently accessed "hot" data. It is a cost-effective alternative to all-SSD configurations, bridging the gap between high-capacity Hard Disk Drives (HDDs) and high-performance flash storage. Core Functionality
Workload Acceleration: Intelligently identifies and caches "hot" data, potentially accelerating application performance by up to four times. Caching Methods:
Write-Through: Data is written to both the cache and the primary storage simultaneously.
Write-Back: Data is written only to the cache and flushed to the primary storage later, providing higher performance but requiring an energy pack for data protection.
Seamless Integration: Operates at the controller level, requiring no changes to the operating system or applications. Licensing & Compatibility HPE Smart Array SR SmartCache QuickSpecs | HPE
The HPE Smart Array SR SmartCache License is a software entitlement required to unlock SSD-based caching on select HPE ProLiant Gen8, Gen9, and Gen10 servers. This technology bridges the performance gap by utilizing low-latency Solid State Drives (SSDs) as a cache for frequently accessed "hot" data stored on slower Hard Disk Drives (HDDs), potentially accelerating application performance by up to 4x. Core Functionality
The license enables the HPE SR SmartCache feature (also known as Microchip maxCache 4.0) within the Smart Array controller firmware. It works through three primary elements: Bulk Storage: Standard HDDs where the primary data resides.
Accelerator: High-speed SSDs used to store copies of frequently accessed data.
Metadata: Information stored in the controller's Flash-Backed Write Cache (FBWC) module that tracks data locations across the accelerator and bulk storage. Licensing and Availability
A separate license is generally required for every server where SmartCache is deployed.
HPE Smart Array SR SmartCache License is a controller-based software activation that enables SSD caching on HPE Smart Array P-series controllers. It is designed to accelerate application workloads by caching "hot" (frequently accessed) data onto low-latency SSDs while maintaining high-capacity HDD storage for the rest of your data. Hewlett Packard Enterprise Performance Review & Value Workload Acceleration
: Users report significant performance gains in environments with repetitive I/O, such as SQL databases Virtual Desktops (VDI)
. It effectively bridges the performance gap between spinning disks and all-flash arrays. Efficiency
: By using a small number of SSDs to accelerate a large RAID array of HDDs, it provides a more cost-effective alternative to full SSD deployments for large datasets. Write Policy Support : The license supports both Write-through (safe, read-only acceleration) and Write-back
(high performance, riskier without a battery-backed cache) policies. Limitations not beneficial
for non-repetitive I/O like routine backups or one-time file access, where data isn't "hot" enough to justify being cached. Additionally, most controllers only support one cache array per controller. Hewlett Packard Enterprise Community Licensing & Compatibility Per-Server Licensing : A separate license key is required for every server where the feature is deployed. Hardware Compatibility Gen10 Servers
: Optional for P408 and P416 controllers; standard on the P816-a. Gen9 Servers : Required for P44x series; standard on P840/P841. Gen8 Servers : Available for P420 and P430 series controllers. Nontransferable Here’s a professional, clear, and legally mindful draft
: Once activated, the license is tied to that specific hardware and cannot be moved to another server. Hewlett Packard Enterprise Deployment & Installation SSD SmartCache on multiple Logical drives - HPE Community 12 Aug 2020 —
HPE Smart Array SR SmartCache License Key is a specialized software enablement for HPE ProLiant servers that allows you to use high-speed SSDs as a caching layer for traditional hard disk drives (HDDs). It is designed for IT environments that need a performance boost for specific applications without the high cost of a full SSD array. Core Functionality
SmartCache identifies "hot data" (frequently accessed information) and moves it from your slower HDD-based bulk storage to lower-latency SSDs. Workload Acceleration: Can improve application performance by up to Write Policies: Write-Through (accelerates reads by writing to both cache and disk) and Write-Back
(accelerates both reads and writes by caching data and writing to the disk later). RAID Support:
Allows RAID 0, 1, 10, and 5 on the SSD cache volumes for data protection (availability depends on server generation). Pros and Cons Seamless Integration:
Works with existing OS and applications with no changes required. License Cost:
Requires a paid license per server, which some users find expensive relative to just buying more SSDs. Unified Management: Managed through the standard HPE Smart Storage Administrator (SSA) Performance Variance:
Not beneficial for sequential workloads like routine backups or non-repetitive I/O. Efficiency:
Bridges the gap between high-capacity HDDs and low-latency SSDs. Hardware Lock: Highly recommended to use HPE-branded SSDs to avoid stability issues. Who is it for? SmartCache is most effective for Read-Intensive workloads. Ideal use cases include: Databases & Analytics: Where specific tables are accessed repeatedly. Virtual Desktop Infrastructure (VDI): Helps manage "boot storms" and high user concurrency. Legacy Systems:
Environments with large HDD pools that cannot be easily migrated to all-flash storage. Buying & Compatibility Supported Platforms: Available for HPE ProLiant Gen8, Gen9, and Gen10 servers with P-series Smart Array controllers. License Types: You can purchase a Physical Entitlement Certificate Electronic License (E-LTU) for faster deployment. HPE often offers a 60-day evaluation to test performance improvements before purchasing. Recommendation:
If your server is currently bottle-necked by HDD latency and a full SSD migration is over-budget, this license is a cost-effective performance bridge. However, for new builds, you might find better value in a RAID 5/6 all-SSD configuration. controller requirements for your specific server generation? HPE Smart Array SR SmartCache QuickSpecs | HPE
The HPE Smart Cache (now HPE SR SmartCache) license key is a 25-character alphanumeric code used to activate SSD caching features on HPE Smart Array P-class controllers. Format and Example Key
A typical license key follows this format: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. Example (Evaluation Key): 34T62-N84MB-7DQGY-G7XGT-YTQ63.
Note: This specific key is widely cited as a 60-day trial key and will expire after the evaluation period. Licensing Details
Usage Requirement: One license is required for every server deployed.
Entitlement: Permanent licenses are delivered as a License Entitlement Certificate, which must be redeemed online at the HPE Software Center to generate the actual activation key.
Non-Transferable: Once activated, licenses are generally tied to the server or controller hardware and cannot be transferred. How to Retrieve an Existing Key
If you have already purchased and registered a license, you can find your key through these steps on the HPE Support Portal: Sign in to the My HPE Software Center. Navigate to Manage > Activation History. Subject: Request / Provision of HPE Smart Cache
Locate your license and click the Entitlement Order Number (EON) to view or download the license key text file. Pre-Installed Licenses
Newer hardware often includes the license by default. The HPE SR SmartCache license is pre-installed on: HPE Smart Array P816i-a SR Gen10. All Gen10 Plus or later controller models.
Are you looking to activate a trial on an older Gen8/Gen9 server, or do you need help redeeming a certificate you already purchased?
HP Smart Array Advanced Pack Evaluation License Key · GitHub
HPE Smart Array SR SmartCache feature uses Solid State Drives (SSDs) to cache frequently accessed data from Hard Disk Drives (HDDs), significantly improving application performance. To unlock this feature on most supported HPE ProLiant controllers, a license key must be purchased and activated through the HPE Smart Storage Administrator (SSA) Licensing Requirements Inclusions
: A license is typically required for every server deployed. However, the license is preinstalled and included on certain high-end models, such as the HPE Smart Array P816i-a SR Gen10 Gen10 Plus or later controller models. Acquisition
: Customers receive a License Entitlement Certificate that must be redeemed online or via fax to obtain the actual 25-character alphanumeric activation key.
: Each permanent license includes one year of 24x7 HPE Software Technical Support Services. www.hpe.com Activation Process : Launch the HPE Smart Storage Administrator Select Controller
: Choose the specific Smart Array controller from the device list. Manage Licenses : Navigate to the tab and select Manage License Keys
: Enter the 25-character activation key to unlock the SmartCache features. Enable Caching : Once activated, use the Cache Manager
tool within SSA to assign SSDs as a cache volume for your data volumes. groups.google.com Supported Controllers by Generation Generation Supported Controllers
P408i-a, P408i-p, P408e-p, P408e-m, P416ie-m, P816i-a (Included) P440, P440ar, P441, P542D, P741m, P840, P840ar, P841 P420, P421, P430, P431, P721m, P731m, P822, P830
: For older Gen8 controllers like the P420i, some users report that later firmware versions may bypass the license requirement, though this is not officially documented as a standard practice for all models. community.hpe.com HP Smartcache license key for Smart Array P420i controller
Title: Architecture, Functionality, and Management of the HPE Smart Cache License Key
Abstract
This paper provides a technical overview of the HPE Smart Cache technology, focusing on the role, mechanism, and lifecycle of the license key required for its activation. HPE Smart Cache is a controller-based caching software solution that accelerates storage performance by using solid-state drives (SSDs) as a cache for mechanical hard disk drives (HDDs). This document explores the licensing models, the deployment architecture, the process of key installation, and the implications for enterprise data management.
The HPE Smart Cache functionality is not "free-to-use" on all controllers; it requires a specific entitlement. HPE employs a "Right to Use" (RTU) licensing model.
The license key can be installed using several management interfaces:
ssacli or RESTful API calls to inject the license key during server provisioning.Here is the critical distinction: While HPE Smart Array controllers support hardware RAID, the Smart Cache feature is locked by default. You cannot enable it without purchasing and installing a specific HPE Smart Cache License Key.
This is a software-enforced tiering feature. Without the key, the SSDs connected to your controller will function only as standard standalone drives or part of a traditional RAID volume. They will not act as a cache for other drives.