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Michael Grant
5
External SAS controller worked reliably.
698531-B21
HPE Smart Array P431/2GB FBWC 12Gb 2-ports Ext SAS Controlle...
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698531-B21
- Description:
- HPE Smart Array P431/2GB FBWC 12Gb 2-ports Ext SAS Controller
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698531-B21 Overview
698531-B21-HPE Smart Array P431/2GB FBWC 12Gb 2-ports Ext SAS Controller is a high-performance storage controller designed to enhance server storage capabilities with a robust hardware RAID engine and 2GB flash-backed write cache. This PCIe expansion card utilizes a PCIe x8 interface with PCIe 3.0 generation support, integrating the HPE Smart Array P431 controller to deliver 12Gb/s SAS connectivity via its two external SAS ports. It has been engineered for enterprise storage expansion, ensuring reliable data protection and high-speed performance while accommodating a wide range of operating systems including Windows, Linux, VMware ESXi, and FreeBSD.
The controller is purpose-built for server enhancement in data centers and enterprise environments, where efficient storage expansion and data integrity are paramount. Featuring passive cooling and a full-height bracket design, this HPE Smart Array controller is optimized for demanding applications, delivering trusted RAID levels including RAID 0, 1, 5, 6, 10, 50, and 60, making it an ideal solution for mission-critical storage expansion needs.
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698531-B21 Specifications
- Product Type
- Expansion Card
- Card Type
- Storage Controller
- Interface
- PCIe x8
- PCIe Version
- PCIe 3.0
- Chipset / Controller
- HPE Smart Array P431 Controller
- Supported Ports
- N/A
- Port Count
- 2
- Max Data Rate
- N/A
- RAID Levels Supported
- RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / RAID 50 / RAID 60
- Capture Resolution
- N/A
- Capture Frame Rate
- N/A
- Low Profile Bracket
- No
- Full Height Bracket
- Yes
- Cooling
- Passive
- Operating System Compatibility
- Windows / Linux / VMware ESXi / FreeBSD
- Bus Width
- 64-bit
- Power Requirements
- 3.3V
- Use Case
- Storage Expansion
- Product Name
- 698531-B21-HPE Smart Array P431/2GB FBWC 12Gb 2-ports Ext SAS Controller
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
698531-B21 Use Case
Accelerating Enterprise OLTP Databases with HPE Smart Array P431
In a global e-commerce environment processing 10,000+ transactions per minute, IT architects deploy the HPE Smart Array P431/2GB FBWC 12Gb 2-ports External SAS Controller to offload RAID management and deliver predictable sub-millisecond write latency. The dedicated flash-backed write cache ensures data integrity during power events, boosting transaction throughput by up to 35% and maintaining consistent performance under peak load for mission-critical online transaction processing.
Enhancing Virtual Desktop Infrastructure Performance and Reliability
A financial services firm consolidates 500 virtual desktops on VMware vSphere and requires high IOPS for concurrent user workloads. Integrating the HPE Smart Array P431 12Gb 2-ports External SAS Controller with 2GB FBWC optimizes RAID 10 arrays across mixed SSD/HDD tiers. The result is a 40% reduction in VM boot times, seamless desktop streaming during peak hours, and enterprise-grade data protection with advanced cache-based write reliability.
Scaling Big Data Analytics Clusters with High-Availability Storage
A healthcare analytics provider runs Hadoop and NoSQL workloads that demand both sequential throughput and random access speed. By connecting multiple SAS-attached SSDs and HDDs to the HPE Smart Array P431 controller, architects achieve linear performance scaling and sub-second query response times. The controller’s dual 12Gb ports and battery-protected write cache deliver uninterrupted data availability, driving a 50% reduction in report generation times and 99.99% SLAs for patient data insights.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 698531-B21 |  873373-B21 |  774743-B21 |  Q0L11A |  P9M75A | |
|---|---|---|---|---|---|
| Product Type | Expansion Card | Expansion Card | Expansion Card | Expansion Card | |
| Card Type | Storage Controller | Storage Controller | Other | Other | |
| Interface | PCIe x8 | PCIe x4 | N/A | N/A | |
| PCIe Version | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | N/A | |
| Chipset / Controller | HPE Smart Array P431 Controller | HPE NVMe Controller | N/A | N/A | |
| Supported Ports | N/A | N/A | N/A | N/A | |
| Port Count | 2 | N/A | N/A | 1 | |
| Max Data Rate | N/A | N/A | N/A | N/A | |
| RAID Levels Supported | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / RAID 50 / RAID 60 | N/A | N/A | N/A | |
| Capture Resolution | N/A | N/A | N/A | N/A | |
| Capture Frame Rate | N/A | N/A | N/A | N/A | |
| Low Profile Bracket | No | No | No | N/A | |
| Full Height Bracket | Yes | Yes | No | N/A | |
| Cooling | Passive | Passive | N/A | N/A | |
| Operating System Compatibility | Windows / Linux / VMware ESXi / FreeBSD | Windows / Linux / VMware ESXi | Windows / Linux / VMware ESXi | N/A | |
| Bus Width | 64-bit | 64-bit | N/A | N/A | |
| Power Requirements | 3.3V | 3.3V | N/A | N/A | |
| Use Case | Storage Expansion | Storage Expansion | Storage Expansion | Storage Expansion | |
| Product Name | 698531-B21-HPE Smart Array P431/2GB FBWC 12Gb 2-ports Ext SAS Controller | 873373-B21-HPE Gen10 Purley NVMe FIO Setting | 774743-B21-HPE DL560 Gen9 NVMe 6 Solid State Drive Express Bay Enablement Kit | Q0L11A-SN1600E 32GB 1P FC HBA NO DEAL REG PL-SH | |
| Height | N/A | 1.0 inches | N/A | N/A | |
| Width | N/A | 3.5 inches | N/A | N/A | |
| Depth | N/A | 7.5 inches | N/A | N/A | |
| Weight | N/A | 0.5 lbs | N/A | N/A |
Reviews & Ratings
A
Adil Hussain
4
Consistent performance in storage expansion.
T
Thomas Kr'ger
5
Easy integration.
R
Ryan Cooper
3
Stable and dependable.
J
Javier Soto
4
No issues encountered.
Questions & Answers
What is the HPE Smart Array P431/2GB FBWC 12Gb 2-ports Ext SAS Controller (SKU: 698531-B21)?
The HPE Smart Array P431 is a high-performance RAID controller delivering 12Gb/s external SAS connectivity, 2GB flash-backed write cache (FBWC) and support for multiple RAID levels to optimize storage reliability and throughput.
Which server models are compatible with the HPE P431 12Gb SAS Controller?
The P431 is officially supported on HPE ProLiant Gen9 and Gen10 rack and tower servers, including DL360, DL380, ML350 and their variants when equipped with compatible SAS backplanes.
What RAID levels does the P431 controller support?
The P431 supports RAID 0, 1, 5, 6, 10, 50 and 60, enabling flexible data protection and performance configurations for varied workload requirements.
How does the 2GB FBWC improve data integrity?
The embedded Flash-Backed Write Cache (FBWC) preserves cached data during power loss by writing it to internal flash memory, ensuring no I/O operations are lost and accelerating write performance.