QNAP CTL-ES2486DC-2142IT-48G – Controller FRU for ES2486dc

Overview :

The QNAP CTL-ES2486DC-2142IT-48G is a specialized Field Replaceable Unit (FRU) designed for the ES2486dc Enterprise ZFS NAS. This controller module is essential for maintaining the system’s high-availability, active-active architecture, which allows both controllers to provide storage services simultaneously. It serves as a direct replacement or spare to ensure mission-critical data remains accessible during hardware faults.

This specific module is powered by an Intel Xeon D-2142IT 8-core processor and features 24GB of DDR4 ECC memory per controller (totaling 48GB in a dual-controller environment). It is optimized to run the QES operating system, which utilizes ZFS for enterprise-grade features like self-healing, inline data deduplication, and compression. The hardware is specifically tuned for All-Flash SAS storage arrays, providing the IOPS necessary for high-demand database and VDI workloads.

In a deployment scenario, this controller is hot-swappable, meaning it can be replaced while the chassis is powered on, provided the secondary controller is healthy. It includes integrated 10GbE SFP+ ports for high-speed networking and PCIe Gen3 slots for further expansion. It is a critical component for IT managers overseeing data centers where downtime is not an option.

Compatibility is restricted to the ES2486dc series. Do not attempt to use this controller in different NAS models or mix it with controllers of different memory capacities, as this can cause synchronization errors in the active-active cluster. This FRU package typically consists of the main board and processor; it does not include the Battery Backup Unit (BBU) or the Power Supply Unit (PSU).

Key Features :

• Active-Active High Availability

  Eliminates downtime by providing seamless failover between controllers.

• Intel Xeon D-2142IT CPU

  8-core processor handles high-performance ZFS storage operations.

• 24GB DDR4 ECC Memory

  Dedicated RAM per module ensures data integrity and system stability.

• All-Flash Optimized

  Engineered specifically for the high-IOPS demands of SAS SSD arrays.

• Quad 10GbE SFP+ Ports

  Provides high-speed connectivity for intensive virtualization traffic.