RAID controller HP Enterprise Smart Array P840 PCIe 3x8 SAS (model 761880-001-RFB)

HP Enterprise Smart Array P840 is a PCIe RAID controller engineered for server storage management. The controller provides SAS connectivity through a PCIe 3.0 x8 interface and is intended for enterprise-class servers to deliver hardware RAID capabilities. It supports common RAID levels suitable for business-critical workloads and is designed to improve data protection, I/O performance and storage scalability across multiple drives.

Advantages

The Smart Array P840 delivers hardware-level RAID processing to offload parity and rebuild operations from the host CPU, bringing consistent performance for mixed read/write workloads. Its SAS connectivity and high-bandwidth PCIe link enable support for large drive arrays and fast data transfer rates. The controller also supports advanced caching and array management features to reduce rebuild times and enhance data availability in multi-drive configurations.

Suitable for

• Enterprise servers requiring hardware RAID for database and virtualization workloads
• Systems that need scalable storage arrays with multiple SAS drives
• Environments where data protection and fast rebuilds are important
• Business applications demanding sustained I/O throughput and low CPU overhead

Key specifications

• Interface: PCI Express 3.0 x8
• Drive connectivity: Serial Attached SCSI (SAS)
• RAID support: hardware RAID with multiple common RAID levels (e.g., 0, 1, 5, 6, 10, 50, 60 — actual supported levels depend on firmware and configuration)
• Form factor: low-profile / full-height compatible PCIe card
• Caching: battery- or flash-backed cache support for improved write performance and data integrity (implementation dependent)
• Management: supported by standard server array management tools and firmware utilities for monitoring and configuration

How to use

Install the RAID controller into a compatible PCIe 3.0 x8 slot on a supported server motherboard, ensuring the server is powered off and grounded to avoid electrostatic damage. Connect SAS cables from the controller to the drive backplane or individual SAS drives according to the server chassis layout. After hardware installation, power on the server and enter the controller firmware or server management utility to initialize the controller, configure array members, and create logical drives using the preferred RAID levels and cache settings. Install or update drivers and management software in the host operating system to enable full monitoring and management of arrays.

Usage recommendations

Use consistent drive types and capacities within each RAID array to optimize performance and capacity utilization. Keep controller firmware and driver packages up to date, and configure appropriate cache protection (battery- or flash-backed) to maintain data integrity. Plan regular backups and monitor array health with management tools to detect degraded drives early and schedule proactive replacements to reduce rebuild times and potential data loss.