QNAP ES1686dc
Next-generation Enterprise ZFS NAS: High-performance and near-zero downtime high availability

Features:

---

QES 2.1.0: ZFS-based, and optimized for all flash performance

The ES1686dc features the QES (QNAP Enterprise Storage) 2.1.0 operating system, which is based on the simple and efficient FreeBSD kernel and the ZFS file system that has been proven through years of experience to be most suitable for high-end enterprise applications. Not only does QES 2.1.0 provide reliable data protection, recovery, and business-class features, it is optimized for flash storage and is capable of driving outstanding performance for all-flash storage arrays to accelerate mission-critical services and eliminate challenges in VDI environments. QES 2.1.0 also comes with Quality of Service (QoS) capabilities that help ensure consistent primary storage performance in multi-application environments. Continuing the same user experience with the intuitive QTS operating system, QES provides business users with an easy learning curve for quick implementation within IT infrastructures.

	QES 2.1.0 QNAP Enterprise System	QTS QNAP NAS System
OS Kernel	FreeBSD	Linux
File system	ZFS	Ext4
CIFS/FTP/NFS/iSCSI
End-to-end data integrity
Snapshot upper limit	65535	1024
Remote disaster backup and recovery	SnapSync	Snapshot Replica
Deduplication		Deduplicate backup data at the source (Hybrid Backup Sync 3.0)
Real-time data compression
Real-time data compaction
Application consistency	Snapshot Agent VSS Hardware Provider (QNAP NetBak Replicator)	Snapshot Agent VSS Hardware Provider (QNAP NetBak Replicator)
Qtier (Auto Tiering)
App Center
Application services (Virtualization Station, Web Server, multimedia service, etc.)
Application scenarios	• Reliable storage for mission-critical business tasks. • The perfect backup storage for the dual-controller Enterprise ZFS NAS.	• High-performance storage with SSD and Qtier technology for maximized cost-efficiency. • Storage for hosting virtual machines and containerized applications. • Application server using QTS services (Web server, VPN server, FTP server, etc).

---

Unleashed SSD potential - cost-effective and agile with ultimate performance

QES 2.1.0 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-class data management and mission-critical services.

---

Deduplication and compression to maximize VDI storage performance

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

---

Self-Healing ensures data integrity and reliability

Designed with a focus on data integrity, a fundamental aspect of storage security and reliability, the QES-based ES1686dc uses its end-to-end checksums to detect and correct silent data corruption caused by hardware defects, bugs in firmware 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.

---

Create VMware/Windows backups for VSS-Aware applications using QNAP Snapshot Agent

QNAP Netbak Replicator is easy-to-use and VSS-aware backup software, helping businesses to create complete backups in data centers and virtualization environments without needing additional software.

Architecture:

Speed and Security:

Hardware Specifications:

	ES1686dc-2123IT-64G	ES1686dc-2142IT-96G	ES1686dc-2142IT-128G
CPU	Intel® Xeon® D-2123IT 4-core 2.20 GHz processor (burst up to 3.0 GHz) per controller	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)	(AES-NI)	(AES-NI)
System Memory	32 GB RDIMM DDR4 ECC (4x 8 GB) per controller	48 GB RDIMM DDR4 ECC (4 x 4 GB+4 x 8GB) per controller	64 GB RDIMM DDR4 ECC (4 x 16 GB) per controller
Maximum Memory	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.
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
SSD Cache Acceleration Support	Read cache only	Read cache only	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)
Jumbo Frame
PCIe Slot	2 per controller Slot 1: PCIe Gen 3 x8 (CPU) Slot 1: PCIe Gen 3 x8 (CPU) Card dimensions for PCIe slot 1~Slot 2：215 x 68.9 x 18.76 mm / 8.46 x 2.71 x 0.74 inches Wider cards can be installed if the next PCIe slot will not be used.
USB 3.2 Gen 1 port	2 per each controller
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)	5.2 × 17.57 × 23.14 inch
Weight (Net)	66.62 lbs
Weight (Gross)	76.99 lbs
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;770W
Power Consumption: Operating Mode, Typical	500.87 W
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

Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications and refer to the hardware user manual to install compatible QNAP memory modules.
Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting.
QNAP reserves the right to replace partial parts or accessories if the original is no longer available from its manufacturer/supplier. Any replacement would be fully tested and verified to meet strict compatibility and stability guidelines and will deliver identical performance to the original. The terms HDMI, HDMI High-Definition Multimedia Interface, HDMI trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc.
Product images are for illustrative purposes only and may differ from the actual product. Due to differences in monitors, colors of products may also appear different to those shown on the site.
Designs and specifications are subject to change without notice.

Documentation:

Standard 5 year warranty

The ES1686dc is backed by a 5-year warranty at no extra cost. This premier warranty demonstrates QNAP’s dedication to your essential business needs for continuous operations and non-interrupted services.