QNAP CTL-ES1686DC-R2-2142IT-64G – Controller FRU for ES1686dc R2

Overview :

The QNAP CTL-ES1686DC-R2-2142IT-64G is a high-availability replacement controller specifically designed for the ES1686dc R2 Enterprise ZFS NAS. This module functions as a critical Field Replaceable Unit (FRU) to maintain the active-active dual-controller architecture of the system. It is engineered to provide seamless failover capabilities, ensuring that data services remain uninterrupted during hardware maintenance or unforeseen controller failures.

Equipped with an Intel Xeon D-2142IT 8-core processor, this R2-specific module includes 32GB of DDR4 ECC memory per controller (contributing to a 64GB dual-controller total). The hardware is optimized for the QES operating system, leveraging ZFS to manage high-density workloads, data deduplication, and near-limitless snapshots. The R2 designation ensures revised hardware compatibility for the second generation of this enterprise series.

Deployment of this controller is standard in high-uptime environments such as VDI hosting, enterprise virtualization, and large-scale backup repositories. The unit features built-in 10GbE SFP+ ports and PCIe expansion slots for high-throughput connectivity. Its hot-swappable nature allows engineers to swap the module while the system is powered on, provided the peer controller is healthy and managing the storage pool.

This controller must only be used in the ES1686dc R2 chassis. It is not interchangeable with non-R2 modules or different Xeon generations. Note that this FRU does not include the Power Supply Unit (PSU) or the Battery Backup Unit (BBU); these components must be migrated from the existing module or purchased separately.

Key Features :

• Dual Active-Active Design

  Supports high-availability failover to eliminate storage downtime.

• Intel Xeon D-2142IT CPU

  Provides 8-core processing power for enterprise-grade ZFS workloads.

• 32GB DDR4 ECC Memory

  Dedicated high-speed RAM per module for reliable data processing.

• Hot-Swappable Architecture

  Allows for field replacement without disrupting active storage services.

• Quad 10GbE SFP+ Ports

  Delivers high-bandwidth network throughput for virtualization fabrics.

Technical Specifications :