QNAP ES1686dc R2 16-Bay NAS Enclosure

QNAP ES1686dc R2 16-Bay NAS Enclosure

Ensure uninterrupted mission-critical business operations with the high-availability ES1686dc R2 NAS. With redundant controllers and power supplies, it minimizes downtime, allowing seamless component replacement without disruption, ensuring reliability and continuity for enterprises.

Features:

Dual active-active controllers

Dual active-active controllers provide supreme uptime and redundancy to ensure high availability.

NVRAM module

NVRAM reduces the risk of losing write cache data if unexpected power failure occurs.

QES operating system

Supports ZFS near-limitless snapshots, SnapSync, block-level data deduplication, and inline data compression.

Storage for virtualization

Supports VMware® vSphere®, Windows Server® and Citrix® XenServer® for storage virtualization.

10GbE SFP+ ports

Four 10GbE SFP+ ports (per controller) accelerate virtualization, large file sharing, and intensive data transfer.

PCIe Gen 3 slots

Two PCIe slots (per controller) allow for adding 10GbE/25GbE networking cards to increase application performance.

Intel® Xeon® D processors bring high performance and efficiency

Powered by two Intel® Xeon® D processors, the ES1686dc R2 features a dual active-active controller architecture that provides failover/failback operations as the standby controller takes over if one controller breaks down.

PCIe Gen 3 slots

The ES1686dc R2 provides two PCIe Gen 3 x8 slots per controller connected to the CPU, allowing you to add additional functionality to meet growing workload and business requirements.

Petabyte-scale, dual-controller SAS storage expansion

Gain petabyte-scale storage capacity using the QNAP’s expansion enclosure. Dual-channel (dual-path) connections allow service continuity even if one node fails.

QES: ZFS-based OS designed for HA systems

The ES1686dc R2 uses the QES operating system, which is based on the simple and efficient FreeBSD kernel and the ZFS file system that is suitable for high-end enterprise applications.

Self-healing ensures data integrity and reliability

Designed to ensure data integrity, the QES-based ES1686dc R2 uses end-to-end checksums to detect and correct silent data corruption caused by hardware defects, firmware bugs or metadata errors. If integrity violations are detected, QES automatically repairs the damage using data from the other mirror before the data is passed to applications.

Unleashed SSD potential – agile and cost-effective for the ultimate performance

QES 2.2 features QNAP’s exclusive Write Coalescing algorithm that further optimizes all-flash performance in ZFS, providing a highly cost-effective all-flash solution for enterprise data management and mission-critical services.

Deduplication and compression maximizes VDI storage performance

In VDI environments where there could be over 90% duplicate data from virtual desktop OS images and applications, the QES-powered ES1686dc R2 provides businesses with the most cost-effective remote virtual desktop platform and mission-critical information warehousing.

Real-time SnapSync ensures minimal RPO with real-time disaster recovery

Real-time SnapSync ensures that both the primary and secondary NAS maintain identical data. When data is written to the source, it is immediately written to the destination. If the primary NAS goes offline, IT staff can simply adjust the privilege settings of the secondary NAS to ensure continuous operations. SnapSync provides the strongest support for nonstop business operations and helps users to reduce the risk of data loss.

Business Continuity

Copy-on-write technology makes QES snapshot creation almost instantaneous without affecting ongoing data writes. SnapSync supports incremental backups, real-time deduplication, and compression. The source ES1686dc R2 performs deduplication before compressing the metadata to reduce synchronized data and save bandwidth.

Compatible with VMware, Microsoft and Citrix virtualization

The ES1686dc R2 supports VMware® vSphere®, Windows Server®, and Citrix XenServer® for flexible deployment and management in virtualization environments.

Reliable, high-performance storage for virtualization

The ES1686dc R2 supports block-based iSCSI LUN as a reliable, high-performance, and affordable storage solution for mainstream virtualization environments. It supports VMware® VAAI and Microsoft® ODX to increase performance by offloading server loading for ESXi server and Hyper-V respectively.

Supports iSER for Improved VM Performance

The ES1686dc R2 supports iSER, combining iSCSI and RDMA (Remote Direct Memory Access), which can bypass general network drivers, the socket layer, and to directly enter memory buffers of the server and storage. Response time is also reduced to ensure service quality of the NAS.

Build an affordable Fibre Channel SAN environment

Common Fibre Channel Storage Area Networks (SAN) devices are often costly. By installing QNAP dual-port 16Gb/32Gb Fibre Channel expansion cards in the ES1686dc R2, you have more budget-friendly options to add a NAS to a SAN environment. You can set a Fibre Channel Target using the iSCSI & Fibre Channel app. Moreover, the LUN Masking and Port Binding features provide an additional layer of data security.

Technical Specifications

Number of Controller Modules: 2
CPU: Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz) per controller
CPU Architecture: 64-bit x86
Floating Point Unit: –
Encryption Engine: AES-NI
System Memory: 48 GB RDIMM DDR4 ECC (4 x 4 GB + 4 x 8 GB) per controller
Maximum Memory: 1024 GB (16 x 64 GB), 512 GB (8 x 64 GB) per controller
Memory Slot: 16 x R-DIMM/LR-DIMM DDR4, 8 x R-DIMM/LR-DIMM DDR4 per controller
Note: Only one type of DIMM can be used at a time. RDIMM cannot be mixed with LR-DIMM.
Flash Memory: 4 GB (Dual boot OS protection)

Drive Bay: 16 x 3.5-inch SAS 12Gb/s, backward-compatible to SAS 6Gb/s
Drive Compatibility:

• 3.5-inch SAS hard disk drives
• 2.5-inch SAS hard disk drives
• 2.5-inch SAS solid state drives
• Hot-swappable: Supported
• SSD Cache Acceleration Support:
• L1 ARC Read Cache: RAM
• L2 ARC Read Cache: SSD
• ZIL Write Cache: NVRAM (C2F)
• Cache for Copy To Flash (C2F): 1 per controller (64 GB M.2 SSD)

Network Interfaces:

Gigabit Ethernet Port (RJ45): 3 per controller (one assigned for remote management)

10 Gigabit Ethernet Port: 4 x 10GbE SFP+ per controller
Wake on LAN (WOL): Supported
Jumbo Frame: Supported

PCIe Slots: 2 per controller

• Slot 1: PCIe Gen 3 x8 (CPU)
• Slot 2: PCIe Gen 3 x8 (CPU)
• Card dimensions for PCIe slots: 215 x 68.9 x 18.76 mm (8.46 x 2.71 x 0.74 in). Wider cards allowed if the next PCIe slot is unused.

USB Ports: 2 x USB 3.2 Gen 1 per controller
Note: For engineering use only; external storage or UPS not supported.

Form Factor: 3U Rackmount
LED Indicators:

System Power LED (Green): On/off

System Status (Green/Red): Operation, errors, low power, degraded RAID, memory/fan/PS failure, high temperature, storage threshold, system takeover, PSU unplugged

LCD Status Display: Two-digit JBOD status

Buttons: Power, Reset

Dimensions (HxWxD): 132 × 446.2 × 587.75 mm
Weight (Net): 30.22 kg
Weight (Gross): 34.92 kg

Operating Temperature: 0 - 40 °C (32°F - 104°F)
Storage Temperature: -20 - 70 °C (-4°F - 158°F)
Relative Humidity: 5-95% RH non-condensing, wet bulb: 27 °C (80.6 °F)

Power Supply Unit: Redundant / Hot Swap, Vin: 90~264 VAC; 700 W
Power Consumption (Operating Mode, Typical): 500.87 W
Fan: Hot-swappable fan module (60×60×38 mm; 16,000 RPM / 12 V / 2.8 A × 3)
System Warning: Buzzer

Standard Warranty: 5 years
Max. Number of Concurrent Connections (CIFS) with Max Memory: 10,000

Safety Standards:

• FCC Class A (USA only)
• CE Mark (EN55022 Class A, EN55024)
• EN60950
• BSMI
• VCCI
• CB
• LVD

What's in the Box:

• 2 x Controller Modules
• 700W Redundant Power Supplies
• Hot-swappable Fan Modules
• Documentation