QNAP ES1686DC-2142IT-64G – 16-Bay Enterprise ZFS NAS

Overview :

The QNAP ES1686DC-2142IT-64G is an enterprise-grade storage solution featuring a dual active-active controller architecture designed to eliminate downtime in mission-critical environments. By running two controllers simultaneously, the system provides high availability, ensuring that if one controller fails, the other takes over immediately without interrupting data services. It is the primary choice for enterprise virtualization, VDI, and massive file server deployments.

Equipped with two Intel Xeon D-2142IT 8-core processors and a total of 64GB DDR4 ECC memory (32GB per controller), this NAS is built for high-throughput I/O. It operates on the ZFS-based QES (QNAP Enterprise Storage) operating system, which provides essential data integrity features such as self-healing, inline data deduplication, and compression. The 16-bay chassis supports 12Gb/s SAS drives, offering the performance required for high-density storage applications.

This 3U rackmount unit is typically deployed in data centers requiring N+1 redundancy and ultra-fast connectivity. It features eight 10GbE SFP+ ports and PCIe expandability for 25GbE or 40GbE upgrades. The system is engineered for seamless integration with VMware, Microsoft Hyper-V, and Citrix environments, providing a robust backbone for hybrid cloud and virtualization fabrics.

Do not utilize this system with standard SATA drives unless using QDA-SA/QDA-SA2 adapters, as the native backplane is designed for dual-path SAS to maintain high availability. Always ensure that memory is balanced across both controllers to maintain optimal performance and synchronization in the active-active cluster.

Key Features :

• Active-Active Dual Controller

  Ensures zero-downtime failover for mission-critical enterprise data.

• Intel Xeon D-2142IT CPU

  8-core processing power per controller for intensive ZFS workloads.

• 64GB DDR4 ECC Memory

  High-capacity RAM ensures system stability and data integrity.

• ZFS Data Reduction

  Inline deduplication and compression maximize storage efficiency.

• Eight 10GbE SFP+ Ports

  Delivers high-bandwidth throughput for virtualization and backup.

Technical Specifications :