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726897-B21
HPE Smart Array P840/4GB FBWC 12Gb 2-ports Int SAS Controlle...
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726897-B21-HPE Smart Array P840/4GB FBWC 12Gb 2-ports Int SAS Controller is a high-performance storage controller designed for enterprise server environments. This expansion card delivers reliable hardware RAID management and storage expansion capabilities with a 4GB flash-backed write cache, optimized for demanding data workloads.
Engineered as an internal RAID controller, it utilizes a PCIe interface—typically in an x8 slot—alongside support for 12Gb SAS connections through its dual-port configuration. Built to meet the needs of enhanced server performance, this controller is compatible with multiple operating systems including Windows, Linux, and VMware ESXi, features passive cooling, and is delivered in a full height bracket design for robust installation in standard server chassis.
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In a global financial services data center, IT architects deploy the 726897-B21 HPE Smart Array P840/4GB FBWC 12Gb 2-ports Int SAS Controller to consolidate multiple high-transaction Oracle and MS SQL instances onto a single rack-scale server. By leveraging 12Gb/s SAS throughput and advanced RAID levels, they achieve 1.2M+ IOPS, eliminate storage bottlenecks, and ensure sub-millisecond latency under peak loads. Outcome: 45% lower TCO, 99.99% database availability, and simplified capacity planning across geographies.
A leading cloud hosting provider integrates the HPE 726897-B21 Smart Array P840 controller into its HPE ProLiant server fleet to support dense VM consolidation on VMware vSphere and Microsoft Hyper-V. The 12Gb/s dual SAS ports and 4GB flash-back cache deliver predictable performance across hundreds of virtual machines, while HPE Smart Storage Administrator streamlines storage provisioning. Outcome: 60% increased VM density per chassis, 30% faster VM boot times, and seamless on-demand scaling with zero service disruptions.
A scientific research lab uses the 726897-B21 HPE Smart Array P840 controller to power its HPC cluster for real-time genomics analysis and big data workloads. The controller’s hardware RAID 6, tiered caching, and multi-port SAS architecture provide ultra-low latency and high throughput for large-scale data sets. Outcome: 3× faster data ingestion, reliable parallel processing at petabyte scale, and enhanced fault tolerance for continuous 24/7 computation.
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dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Smart Array controller delivered strong RAID performance.
Cache improved write speeds significantly.
OEM controller with stable drivers.
Reliable under heavy I O loads.
Excellent enterprise controller.
The HPE Smart Array P840/4GB FBWC 12Gb 2-ports Int SAS Controller (SKU: 726897-B21) is an enterprise-grade hardware RAID controller that delivers high-performance data protection with two integrated 12Gb/s SAS ports and 4GB flash-backed cache.
The HPE P840 controller features two internal 12Gb/s SAS ports for direct connection to SAS or SATA drive enclosures, ensuring high-speed data transfer and low latency.
The HPE Smart Array P840 supports RAID 0, 1, 10, 5, 50, 6 and 60, providing flexible data protection and performance options for diverse workloads.
Flash-Backed Write Cache (FBWC) uses supercapacitors and NAND flash to protect cached write data during power loss, delivering faster write performance and enhanced data integrity.
The P840/4GB FBWC controller is compatible with HPE ProLiant Gen9 and Gen10 servers, including DL380, DL360, ML350 and BL460 rack, tower and blade platforms.
When paired with SAS expanders, the P840 controller can manage up to 240 SAS or SATA drives, providing massive storage scalability in large deployments.
No additional Host Bus Adapter (HBA) is required; the P840 functions as a fully integrated hardware RAID controller with SAS connectivity built-in.
To install, power down the server, insert the P840 into a free PCIe Gen3 slot, secure it, connect SAS cables to drive enclosures and power on the server.
Use the HPE Smart Storage Administrator (SSA) via the server’s BIOS interface or the operating system utility to create, modify and manage RAID arrays.
Yes. Download the latest firmware from the HPE Support Center and apply it using HPE Smart Storage Administrator or Service Pack for ProLiant (SPP).
The HPE P840 comes with 4GB of DDR4 FBWC, which is factory-installed and not field-upgradeable; cache capacity can only be increased by replacing the entire controller module.
Yes, the P840 supports both SAS and SATA SSDs/HDDs, operating at up to 12Gb/s for SAS and 6Gb/s for SATA devices for maximum versatility.
By offloading RAID parity calculations, offering advanced RAID levels and protecting cache via FBWC, the P840 ensures high data availability and rapid rebuilds.
The HPE Smart Array P840 controller includes a standard 3-year limited warranty, with optional extensions available through HPE Care Pack services.
Compared to the P822, the P840 delivers double the per-port throughput (12Gb/s vs 6Gb/s), higher cache durability with FBWC and expanded RAID capabilities.
The HPE P840 controller typically draws 8W at idle and up to 15W under load, though actual consumption varies with server configuration and drive activity.
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