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FC disk array interface

Fibre interconnection and data room reference Published 30 Dec 2025

Use this reference to prepare product questions for FD SOLUCIONES. Check interfaces, capacity, protection and installation requirements against the current product documentation.

Fibre Channel (FC) is a high-speed storage interface used in disk arrays to provide low-latency, reliable block-level access in enterprise storage networks.

Overview of FC Disk Arrays

A Fibre Channel disk array interface connects disk drives to storage controllers and servers, typically within a Storage Area Network (SAN).

F

C operates at high speeds (commonly 8, 16, or 32 Gbps) and is designed for mission-critical applications requiring high performance and reliability. Unlike direct-attached storage, FC allows multiple servers to access shared storage resources efficiently. Architecture and TopologyFC disk arrays often use an arbitrated loop (FC-AL) or switched fabric topology: FC-AL (loop): Disk drives are connected in a loop, and only one device can communicate at a time.

Each disk is addressed sequentially through the loop, and ownership is hardware-based, with the local node controlling its attached drives. Switched fabric: Modern FC SANs use switches to allow multiple simultaneous connections, improving throughput and redundancy.

F

C disk arrays typically have front-end interfaces for host connections and back-end interfaces for connecting to the physical disks. The back-end may use SATA, SAS, or SCSI protocols, while the front-end uses FC to present logical units to servers.

Key Features

High Performance: FC provides low-latency, high-bandwidth access suitable for databases, virtualization, and large-scale enterprise workloads. Reliability: FC supports multipathing and redundant paths to ensure continuous access even if a link fails.

Hardware-

Based Disk Ownership: Each controller or node owns its disks, reducing conflicts and ensuring predictable performance. Integration with RAID: FC disk arrays often include RAID controllers to manage redundancy and improve data protection. Comparison with Other InterfacesSAS: Uses point-to-point connections with software-based disk ownership.

SA

S is simpler and more cost-effective for smaller deployments but generally offers lower scalability than FC.iSCSI: Runs over Ethernet, easier to deploy, and cost-effective, but typically has higher latency and lower throughput compared to FC. FCoE: Combines FC reliability with Ethernet infrastructure, reducing cabling complexity while maintaining performance. Use CasesFC disk arrays are ideal for enterprise SANs, virtualized environments, and mission-critical applications where performance, reliability, and low latency are essential.

They are commonly deployed in data centers, financial institutions, and healthcare systems where downtime is unacceptable. In summary, the FC disk array interface provides a robust, high-speed, and reliable method for connecting disk arrays to servers, supporting complex enterprise storage requirements while ensuring data integrity and high availability.

FC disk array interface - FD SOLUCIONES OPTICAL SYSTEMS [PDF]

FC disk array interface
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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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