HPE Smart Array P816i-a SR Gen10 RAID SAS 12Gb/s 16-Port Controller 836261-004
HPE P816i-a SR Gen10 RAID SAS 12Gb/s 16-Port
Here is the complete, professional English product datasheet and technical profile for the HPE Smart Array controller.
HPE Smart Array P816i-a SR Gen10 12Gbps 16-Port SAS/SATA Modular Controller
Product Overview:
The 836261-004 (with Option Part Number 804338-B21) is an enterprise-class, high-performance Smart Array Gen10 storage controller. It features 16 internal SAS/SATA lanes across 4×4 internal ports, an integrated 4GB Flash-Backed Write Cache (FBWC), and is bundled with the HPE Smart Array SR Secure Encryption license. Built in the “a” (Flexible/Modular Slot) form factor, this controller provides maximum storage scalability, advanced RAID capabilities, and premium performance features without consuming a standard PCIe expansion slot.
Key Technical Specifications
| Parameter | Specification Details |
| HPE Option Part Number | 804338-B21 |
| HPE Spare Part Number | 836261-004 |
| Assembly Part Number | 804335-001 |
| Interface Speed | 12Gb/s SAS per lane / 6Gb/s SATA per lane |
| Number of Ports/Lanes | 16 Internal SAS/SATA physical lanes across 4 x4 internal ports |
| Cache Memory | 4 GB Flash-Backed Write Cache (FBWC) |
| Form Factor | Type-a Flexible/Modular Smart Array Controller (Does not occupy a PCIe slot) |
| RAID Levels Supported | RAID 0, 1, 5, 6, 10, 50, 60, 1 ADM, 10 ADM (Advanced Data Mirroring) |
| Drive Types Supported | 12G SAS, 6G SATA (HDD, SSD, and Dual-Port) |
| PCIe Interface | PCIe 3.0 x8 host interface |
Performance & Security Features
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Premium Data Security: Includes the HPE Smart Array SR Secure Encryption enterprise-class license, providing a controller-based data-at-rest encryption solution for all drives connected to the controller.
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4GB FBWC: Uses flash memory instead of older battery-backed cache systems. In the event of a sudden power loss, data cached in the 4GB buffer is instantly written to non-volatile flash memory via a supercapacitor unit (HPE Smart Storage Battery, sold separately).
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HPE Smart Array SR SmartCache: Includes a built-in caching license that allows high-speed SSDs to act as a cache pool for slower HDD volumes, significantly boosting read/write IOPS for hot data workloads.
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Mixed Mode Operation: Simultaneously supports RAID logical drives and HBA (Host Bus Adapter) pass-through mode on a single controller, allowing flexible deployment options.
Server Architecture Compatibility
The Type-a modular form factor is custom-tailored for HPE ProLiant Gen10 Rack and Tower Servers with designated modular array slots:
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HPE ProLiant DL Series: DL360 Gen10, DL380 Gen10, DL385 Gen10, DL560 Gen10
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HPE ProLiant ML Series: ML350 Gen10
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HPE Apollo Systems: XL450 Gen10
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