QNAP ES1686dc-R2-2123IT-64G ,16-Bay Intel® Xeon® 8-core 1.90GHz ,32GB DDR4 Active-Active Dual Controller
Model # ES1686dc-R2-2123IT-64G
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SKU: ES1686dc-R2-2123IT-64G
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QNAP ES1686dc-R2-2123IT-64G 16-Bay Active-Active Dual-Controller NAS
A 16-bay 3U high-availability QNAP ES1686dc R2 NAS with dual active-active controllers, QES, SAS storage, four 10GbE SFP+ ports per controller and redundant hot-swap power.
High-availability architecture
The supplied description identifies dual active-active controllers and redundant power supplies to support high availability and component replacement with reduced service disruption.
QES data services
The supplied QES feature set includes ZFS near-limitless snapshots, SnapSync, block-level data deduplication and inline data compression.
Virtualization storage support
The supplied information lists VMware vSphere, Windows Server and Citrix XenServer for storage virtualization.
Important supplied operating notes
- Only one DIMM type should be used at a time; the supplied note says not to mix RDIMM and LRDIMM memory.
- The two USB 3.2 Gen 1 ports per controller are stated to be for engineering purposes only; external storage drives and UPS devices are not supported through those ports.
- The typical operating power figure of 500.87W was tested with drives fully populated.
Frequently asked questions
Answers below are based on the supplied information for QNAP ES1686dc-R2-2123IT-64G.
What is the QNAP ES1686dc-R2-2123IT-64G?
It is a 16-bay 3U ES1686dc R2 high-availability NAS with dual active-active controllers and redundant hot-swap power.
What processor is listed for ES1686dc-R2-2123IT-64G?
The supplied detailed specification lists Intel Xeon D-2123IT 4-core 2.20GHz per controller, burst up to 3.0GHz.
How much memory is specified for ES1686dc-R2-2123IT-64G?
The supplied specification lists 32GB RDIMM DDR4 ECC per controller, with a maximum memory value of 512GB (8 x 64GB).
What drives does ES1686dc-R2-2123IT-64G support?
The 16 drive bays are listed for SAS 12Gb/s and are backward-compatible with SAS 6Gb/s. The supplied compatibility list includes 3.5-inch SAS HDDs, 2.5-inch SAS HDDs and 2.5-inch SAS SSDs.
Are the drive bays hot-swappable on ES1686dc-R2-2123IT-64G?
Yes. The supplied specification marks the drive bays as hot-swappable.
What network ports are provided per controller?
Each controller is listed with three Gigabit Ethernet RJ45 ports, with one assigned for remote management, plus four 10GbE SFP+ ports.
What PCIe expansion is listed for ES1686dc-R2-2123IT-64G?
The supplied specification lists two PCIe Gen 3 x8 slots per controller. The description also states that 10GbE or 25GbE network cards can be added.
What QES storage features are listed?
The supplied description lists ZFS near-limitless snapshots, SnapSync, block-level data deduplication and inline data compression.
Which virtualization platforms are listed?
The supplied information lists VMware vSphere, Windows Server and Citrix XenServer for storage virtualization.
What cache features are listed for ES1686dc-R2-2123IT-64G?
The supplied specification lists read-only SSD cache acceleration and one 64GB M.2 SSD Cache for Copy To Flash (C2F) per controller.
Can the USB ports be used for external drives or a UPS?
No. The supplied note says the USB 3.2 Gen 1 ports are for engineering purposes only and do not support external storage drives or UPS devices.
What warranty applies to QNAP ES1686dc-R2-2123IT-64G?
The product is covered under the QNAP manufacturer warranty, subject to the manufacturers terms and assessment.
(ES1686dc-R2-2123IT-64G)
Features and highlights
Core supplied features for the QNAP ES1686dc-R2-2123IT-64G.
Dual active-active controllers
The supplied architecture uses two active controllers for high availability and redundancy.
NVRAM protection
The supplied description states that NVRAM reduces the risk of losing write-cache data during an unexpected power failure.
QES with ZFS services
QES is listed with snapshots, SnapSync, block-level data deduplication and inline data compression.
10GbE per controller
Four 10GbE SFP+ ports are listed for each controller.
PCIe Gen 3 expansion
Two PCIe Gen 3 x8 slots are listed per controller for expansion.
SAS storage
Sixteen 3.5-inch bays are listed for SAS 12Gb/s, backward-compatible with SAS 6Gb/s.
- 3U rackmount form factor
- 16 hot-swappable SAS drive bays
- Three Gigabit Ethernet RJ45 ports per controller, including one for remote management
- Read-only SSD cache acceleration support
- One 64GB M.2 SSD C2F cache per controller
- Redundant hot-swap 700W power supply
- 500.87W typical operating power in the supplied fully-populated test
Specifications
Supplied technical specifications for QNAP ES1686dc-R2-2123IT-64G.
| CPU | Intel(R) Xeon(R) D-2123IT 4-core 2.20 GHz processor (burst up to 3.0 GHz) per controller |
|---|---|
| CPU Architecture | 64-bit x86 |
| Floating Point Unit | Yes |
| Encryption Engine | (AES-NI) |
| System Memory | 32 GB RDIMM DDR4 ECC (4x 8 GB) per controller |
| Maximum Memory | 512 GB (8 x 64GB) |
| Memory Slot | 8 x R-DIMM/LR-DIMM DDR4 IMPORTANT: You can only use one type of dual in-line memory module (DIMM) at a time. Do not use registered DIMM (RDIMM) with load-reduction DIMM (LRDIMM) memory. |
| Flash Memory | 4GB (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 bays: 3.5-inch SAS hard disk drives 2.5-inch SAS hard disk drives 2.5-inch SAS solid state drives |
| Hot-swappable | Yes |
| SSD Cache Acceleration Support | Read cache only |
| Cache for Copy To Flash (C2F) | 1 per each controller (64GB M.2 SSD) |
| Gigabit Ethernet Port (RJ45) | 3 for each controller (assign one for remote management) |
|---|---|
| 10 Gigabit Ethernet Port | 4 x 10GbE SFP+ for each controller |
| Wake on LAN (WOL) | Yes |
| Jumbo Frame | Yes |
| PCIe Slot | 2 per controller Slot 1: PCIe Gen 3 x8 (CPU) Slot 2: PCIe Gen 3 x8 (CPU) Wider cards can be installed if the next PCIe slot will not be used. |
| USB 3.2 Gen 1 port | 2 per each controller Note: The USB ports are for engineering purpose only. No external devices such as storage drives or UPS are supported. |
| Form Factor | 3U Rackmount |
|---|---|
| LED Indicators | System Power LED (Green): on/off System Status (Green/ Orange): in operation, system errors, low power, degraded RAID mode, memory failure, fan/power supply failure, system/disk temperature too high, storage pool reaching threshold value, system performing take-over, power supply unit unplugged LCD Status Display (Two-digit number): Status of JBOD connection |
| 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 Power Vin:90~264VAC;700W |
| Power Consumption: Operating Mode, Typical | 500.87 W Tested with drives fully populated. |
| Fan | Hot-swappable fan module (60*60*38mm; 16000RPM/12v/2.8A x 3) |
| System Warning | Buzzer |
| Standard Warranty | 5 |
|---|---|
| Max. Number of Concurrent Connections (CIFS) - with Max. Memory | 10000 |
| Safety Standard | FCC Class A (USA only) CE Mark ( EN55022 Class A, EN55024) EN60950 BSMI VCCI CB LVD |
| SKU | ES1686dc-R2-2123IT-64G |
| Brand | QNAP |
| Shipping Weight | 35.0000kg |
QNAP manufacturer warranty
QNAP ES1686dc-R2-2123IT-64G is covered under the QNAP manufacturer warranty.
Warranty coverage, eligibility, duration and claim handling are subject to the manufacturers terms and assessment for this product.
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