Fujitsu PRAID EP680i RAID-controller PCI Express x8 4.0 16 Gbit/s

The Fujitsu PRAID EP680i RAID controller is a server-class I/O adapter designed for enterprise storage environments. It provides a PCI Express x8 host interface and supports SAS storage drives with a sustained data transfer capability of 16 Gbit/s. The controller implements hardware RAID with support for RAID levels 0, 1, 5, 6, 10, 50 and 60 to balance performance, capacity and data protection according to deployment requirements.

Advantages

This RAID controller delivers high throughput and low latency via the PCI Express x8 connection and a 16 Gbit/s transfer capability, making it suitable for demanding transactional and data-intensive workloads. Hardware-level RAID offload improves CPU efficiency and provides consistent performance for mixed I/O patterns. Broad RAID level support enables flexible configurations for redundancy and capacity optimization while SAS drive compatibility ensures use with enterprise-grade storage media.

Suitable for

• Server storage arrays requiring hardware RAID acceleration
• Database servers and virtualised environments with mixed read/write loads
• Backup and archiving systems where redundancy and capacity scaling are needed
• High-availability configurations using RAID 1, 6, 10, 50 or 60

Key specifications

• Host interface: PCI Express x8
• Maximum transfer rate: 16 Gbit/s
• Supported drive interface: SAS
• Supported RAID levels: 0, 1, 5, 6, 10, 50, 60
• Form factor: low-profile expansion card (fits standard server PCIe slots)

How to use

Install the controller into an available PCI Express x8 slot in a compatible server following the server manufacturer’s hardware installation procedures. Connect SAS drive backplanes or direct-attach SAS drives to the controller ports. Configure RAID arrays using the controller’s management utility during system boot or via vendor-supplied software in the operating system. Perform an initial consistency check or rebuild after creating arrays and monitor array health through the management interface.

Recommendations

For reliable operation, pair the controller with enterprise-grade SAS drives and ensure firmware and management utilities are kept up to date. Choose RAID levels according to the trade-off between performance and redundancy: use RAID 10 for write-intensive workloads requiring low latency, RAID 6 for large-capacity arrays with higher fault tolerance, and RAID 5/50 for mixed workloads where capacity efficiency is important. Regularly monitor drive health and plan replacement procedures to minimise rebuild impact on performance.