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Qnap
19"Rack ZFS NAS
ES1686dc-2123IT-64G
16-Bay, 3U, 12Gb SAS/SATA RAID (64GB ECC RAM, Xeon 4-core) + 10GbE


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Stock codeIBQ-RES1686-23x64
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12Gb SAS/SATA to 10GbE Ethernet
64GB RAM
Intel® Xeon® D-2123IT quad-core 2.20 GHz processor per controller (up to 3.0 GHz)
5yr Warranty
Description
ES1686dc
Next-generation Enterprise ZFS NAS: High-performance and near-zero downtime high availability

Delivering enterprise high availability, the ES1686dc Enterprise ZFS NAS features Intel® Xeon® D processors, dual active controllers, up to 512 GB DDR4 ECC memory, SAS 12Gb/s, and ZFS that supports logical volume management. The ES1686dc runs the latest QES 2.1.0 operating system that supports near-limitless snapshots, SnapSync, block-level data deduplication, and inline data compression. Whether being used as a mission-critical file server, virtualization server, VDI, medium-sized data center, video streaming, surveillance storage, and efficient file backup & recovery, the ES1686dc helps your business to achieve service-level agreements for performance and uptime.
Intel® Xeon® D dual active-active controllers provide supreme uptime and redundancy to ensure high availability. Battery-protected DRAM write to cache data protection and Flash read acceleration provides industry-leading random access performance. Two M.2 SSD slots allow for implementing SSD cache acceleration. Four 10GbE SFP+ ports accelerate virtualization, large file sharing, and intensive data transfer. Near-limitless snapshots and SnapSync for snapshot remote backup assist businesses to resume essential services in the shortest time. Supports VMware® vSphere® 6.5, Windows Server® 2016 and Citrix® XenServer® 7.0 for storage virtualization. Compatible with OpenStack® cloud environments.
Available Models

ES1686dc-2142IT-128G
Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz), 128 GB DDR4 ECC memory (64 GB per controller)

ES1686dc-2142IT-96G
Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz), 96GB DDR4 ECC memory (48 GB per controller)

ES1686dc-2123IT-64G
Intel® Xeon® D-2123IT 4-core 2.2 GHz processor (burst up to 3.0 GHz), 64 GB DDR4 ECC memory (32 GB per controller)


Active-Active high availability with optimal storage efficiency
In Active-Active storage system architecture, both controllers are able to provide a complete range of services, which is different from the Active-Standby architecture of single-controller systems. The Active-Active architecture does not have the disadvantage of idle computing resources. To leverage the strengths of the ES1686dc Active-Active controller architecture, it is recommended to create multiple storage pools and distribute their ownership between both controllers. This allows simultaneous output from both controllers for better load balancing.

Active-Standby single-controller system
With two HA systems you are paying twice the price and causing a load imbalance as workloads are only processed on the active system. A power outage could cause data loss, and the disconnected network invalidates the HA architecture.

Active-Active dual-controller system
Both controllers of the ES1686dc can carry traffic, along with Copy-To-Flash protection against power failure and the dual-path SAS interface. Besides conserving computing resources, a high-speed, uninterrupted, and high-availability storage service is also provided through communication protocols such as SMB, NFS and iSCSI.

Intel® Xeon® D dual-controller ensures high availability and failure-resistant service
Powered by two Intel® Xeon® D processors, the ES1686dc features a dual active-active controller architecture that provides failover/failback operations as the standby controller can quickly take over if one controller breaks down. Redundant hot-swappable power supplies and cooling fans are also included to provide businesses with near-zero downtime high availability. The ES1686dc connects to the JBOD enclosure (EJ1600 v2) via the dual-path mini-SAS design to sustain continuous operations even if a JBOD cable is disconnected. Designed around redundancy, the ES1686dc is the best realization of reliable enterprise storage for uninterrupted mission-critical enterprise tasks and productivity.

Multi-level cache technology with both read and write
The ES1686dc simultaneously supports main memory read cache (L1 ARC), SSD secondary read cache (L2 ARC), and memory write cache (ZFS Intent Log) to meet performance demands for various enterprise applications.

Up to 512 GB main memory
Each controller has eight RDIMM slots, allowing for up to 512 GB memory.
Note: The main memory will retain 8GB for use by the read cache.

M.2 SSD cache
Two M.2 SSD slots (support PCIe Gen3 x4 or SATA 6Gb/s SSDs) provide the ability to enable SSD caching to increase IOPS performance.

Note: M.2 SSDs sold separately.
NVRAM cache reduces the risk of losing write cache data
If unplanned power outages occur, the system can write cache data from the battery-protected DRAM to M.2 SSD through Copy To Flash (C2F) to ensure that data is not lost.
Note: To ensure write cache data safety, it is recommended to annually replace the BBU. QNAP provides one-year warranty for the BBU.
PCIe expansion for 40GbE high-speed networks

The ES1686dc provides two PCIe Gen3 x8 slots connected to the CPU, allowing you to install lightning-fast 10GbE/40GbE network cards to boost virtualization, media streaming, and other bandwidth-demanding applications. Installing Mellanox® Smart NICs further adds support for iSER for improved VMware® virtualization performance. You can also install a QM2 expansion card (QM2-4P-384) to add four additional M.2 2280 PCIe NVMe SSD slots to burst reading performance with SSD caching, or a SAS expansion card (SAS-12G2E) for connecting up to seven 16-bay EJ1600 v2expansion enclosures to seamlessly expand the potential storage capacity over 1PB, with unprecedented performance of up to 48Gbps per host connection.

Dual controller NAS: High reliability and high availability
“Reliability” is the priority for mission-critical business applications. The ES1686dc adopts dual active-active controllers to provide the most reliable base for business IT storage.

Supports SAS 12Gb/s and SAS 6Gb/s hard drives and SSDs to allow the perfect balance of performance and capacity.
Leverage the 6Gbps SAS to SATA drive adapter
While SATA 6Gb/s SSDs provide high-performance yet affordable storage, the lack of dual-port support makes them unsuitable for dual-controller environments. The QDA-SA adapter is designed for QNAP Enterprise ZFS NAS, and allows the use of a SATA 6Gb/s drive in a 3.5-inch SAS drive bay - providing the ability to expand storage capacity by using cost-effective SATA drives. By installing a SATA drive with the QDA-SA into the dual-controller ES1686dc, the SATA drive can share these SAS dual-port advantages to ensure a high-availability, fault-tolerant enterprise storage environment.

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 and QTS comparison   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).


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.

Note: The Write coalescing algorithm in QES 2.1.0 does not support for dual-controller NAS. This will be supported in future versions of QES.

Write Coalescing algorithm
Transforms all random writes to sequential writes along with reduced I/O. It not only effectively increases random write performance for all-flash environments but also can improve SSD lifespans.
Software-defined over-provisioning
Users can allocate an additional over-provisioning ratio for SSDs (from 1% to 60%) and Storage Pools (from 1% to 40%) for a constant performance boost of over 100%.
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.

Inline data deduplication
Block-based data deduplication optimizes storage usage and significantly decreases storage capacity requirements.
Inline compression
Shrinks data size to reduce storage I/O workloads for improved performance. In VDI, deduplicated virtual desktops are easily cached to achieve optimal virtual desktop performance.
Inline compaction
Especially helpful for increasing SSD storage utilization efficiency when highly-repetitive data or massive small files (e.g. transaction logs of banks or e-commerce) are generated. It delivers higher cost efficiency of all-flash storage systems. 

Note: Data compaction in QES 2.1.0 does not support dual-controller NAS. This will be supported in future versions of QES.
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.

Streamlined remote backups with nearly limitless snapshots and SnapSync
The ES1686dc supports up to 65,535 snapshots for iSCSI LUN and shared folders (if 1 snapshot is created every hour, 24 snapshots per day, then up to 7 years worth of snapshots can be created without needing to delete any) and replicates snapshots to remote servers by using the block-level SnapSync. In the event of a primary site failure, SnapSync assists businesses to resume essential services in the shortest possible time.

VMware SRM
SnapSync supports VMware Site Recovery Manager (SRM) that offers enterprise-class remote backup and disaster recovery solutions for virtual applications. With the Storage Replication Adapter (SRA) for SRM, operation overheads of the ESXi® server can be offloaded to a QNAP NAS to accelerate and simplify virtual machine backup and restoration.

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

VMware SRM
SnapSync supports VMware Site Recovery Manager (SRM) that offers enterprise-class remote backup and disaster recovery solutions for virtual applications. With the Storage Replication Adapter (SRA) for SRM, operation overheads of the ESXi® server can be offloaded to a QNAP NAS to accelerate and simplify virtual machine backup and restoration.

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

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. To build a QNAP Snap Agent and VSS Hardware Provider operating environment, all applications (including VSS Service, Requestor, Provider and QNAP Snap Agent) can be deployed with VSS-Aware applications on the same server, and the minimal requirements are only one ES1686dc and one server for it to be operational.

Compatible with VMware, Microsoft and Citrix virtualization, and supports iSER
The ES1686dc supports VMware® vSphere® 6.5, Windows Server® 2016, and Citrix XenServer® 7.0 for flexible deployment and management in virtualization environments. It also supports VMware® VAAI and Microsoft® ODX to increase performance by offloading server loading for ESXi® server and Hyper-V® respectively. The QNAP vSphere Client plug-in, Web plug-in and QNAP SMI-S provider are also supported to increase the efficiency of operations and management in virtualization applications. The ES1686dc and VMware® ESXi server installed with Mellanox® Smart NICs that support iSER can acquire iSER advantages to offload CPU workloads with boosted VMware® virtualization performance.

QES is OpenStack Ready to explore out-of-the-box enterprise cloud services
QES supports OpenStack® Cinder and Manila file sharing services. With the QNAP Cinder Driver, the ES1686dc can provide block-level storage space to virtual machines. It not only accelerates the deployment of virtual machines and enhances virtual machine image access efficiency through iSCSI, but it is also easier to integrate into commercial cloud storage platforms, providing businesses with a flexible, easy-to-use, and low-cost storage solution.

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.


CPU Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz) per controllerr
Intel® Xeon® D-2123IT 4-core 2.20 GHz processor (burst up to 3.0 GHz) per controller CPU Architecture 64-bit x86 Floating Point Unit   Encryption Engine  (AES-NI) System Memory 64 GB RDIMM DDR4 ECC (4 x 16 GB) per controller
48 GB RDIMM DDR4 ECC (4 x 4 GB+4 x 8GB) per controller
32 GB RDIMM DDR4 ECC (4x 8 GB) per controller Maximum Memory 512 GB (8 x 64GB) Memory Slot 8 x DDR4 RDIMM/LRDIMM 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/SATA hard disk drives
2.5-inch SAS/SATA hard disk drives
2.5-inch SAS/SATA solid state drives Hot-swappable   M.2 SSD Slot 2 x M.2 port
Supports SATA 6Gb/s or NVMe Gen3 x4 2280 SSD Cache Acceleration Support   Cache for Copy To Flash (C2F) 1 per each controller (64GB) Gigabit Ethernet Port (RJ45) 3 for each controller (one for remote management) 10 Gigabit Ethernet Port 4 x 10G SFP+ for each controller Jumbo Frame   PCIe Slot 2
Slot 1: PCIe Gen3 x8 (CPU)
Slot 2: PCIe Gen3 x8 (CPU) USB 3.0 port 2 per each controller Form Factor 3U Rack Mount 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 × 483.05 × 630.62 mm Weight (Net) 25.83 kg Weight (Gross) 32.69 kg Operating temperature 0 - 40 °C (32°F - 104°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) Sound Level 55.8 db(A) 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. Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting. 
* Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front of operating NAS.
Designs and specifications are subject to change without notice.
Specifications
Specifications

General

Stock code IBQ-RES1686-23x64
Brand Qnap
Series 19"Rack ZFS NAS
Model ES1686dc-2123IT-64G
Type 16-Bay, 3U, 12Gb SAS/SATA RAID (64GB ECC RAM, Xeon 4-core) + 10GbE
ROHS Y
Date added 28/03/2019

ES1686dc-2123IT-64G Spec Information

Form Factor / Drive Height 483 x 631 x 132mm
Platter size 3.5"
Platter (alternate) 2.5"
RAM/Cache 64GB
Guarantee 5yr
Processor Intel® Xeon® D-2123IT quad-core 2.20 GHz processor per controller (up to 3.0 G...
CPU Mark (cpubenchmark.net) 2x 8100
Redundant PSU ? Not available
Total Drives 16
RAID 0:1:5:6:JBOD:
RAID Levels Single disk, RAID 0 (Disk Striping), RAID 1 (Disk Mirroring), RAID 5, RAID 5+ Ho...
Rack size 3

ES1686dc-2123IT-64G Spec Connections

sub- connectionI/EQuantity
LANSFP+ 10GbEExternal8
SAS/SATASFF-8482 (Internal)Internal16
USB3USB3 type A (host)External4
PCIePCIe v3 x8Internal2

Software

ES1686dc-2123IT-64G Speed

Speed/RPM 12Gb SAS/SATA to 10GbE Ethernet

Physical

Colour Black
Weight (kg) 32.69kg
Weight (bare) 25.83kg
Watts Redundant 770W
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Stock codeIBQ-RES1686-23x64
Quick code69559
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Qnap
19"Rack ZFS NAS
ES1686dc-2123IT-64G
16-Bay, 3U, 12Gb SAS/SATA RAID (64GB ECC RAM, Xeon 4-core) + 10GbE



qtier NASFreeBSDpcie-expansionECC RAMPCIe NVMe SSDddr4-ram10gbe ethernetplex support10gbe sfp + nasintel-xeon-inside






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Description

Qnap 19"Rack ZFS NAS ES1686dc-2123IT-64G 16-Bay, 3U, 12Gb SAS/SATA RAID (64GB ECC RAM, Xeon 4-core) + 10GbE


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Qnap ES1686dc2123IT64G Key features


12Gb SAS/SATA to 10GbE Ethernet
64GB RAM
Intel® Xeon® D-2123IT quad-core 2.20 GHz processor per controller (up to 3.0 GHz)
5yr Warranty


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

Delivering enterprise high availability, the ES1686dc Enterprise ZFS NAS features Intel® Xeon® D processors, dual active controllers, up to 512 GB DDR4 ECC memory, SAS 12Gb/s, and ZFS that supports logical volume management. The ES1686dc runs the latest QES 2.1.0 operating system that supports near-limitless snapshots, SnapSync, block-level data deduplication, and inline data compression. Whether being used as a mission-critical file server, virtualization server, VDI, medium-sized data center, video streaming, surveillance storage, and efficient file backup & recovery, the ES1686dc helps your business to achieve service-level agreements for performance and uptime.
  • Intel® Xeon® D dual active-active controllers provide supreme uptime and redundancy to ensure high availability.
  • Battery-protected DRAM write to cache data protection and Flash read acceleration provides industry-leading random access performance.
  • Two M.2 SSD slots allow for implementing SSD cache acceleration.
  • Four 10GbE SFP+ ports accelerate virtualization, large file sharing, and intensive data transfer.
  • Near-limitless snapshots and SnapSync for snapshot remote backup assist businesses to resume essential services in the shortest time.
  • Supports VMware® vSphere® 6.5, Windows Server® 2016 and Citrix® XenServer® 7.0 for storage virtualization. Compatible with OpenStack® cloud environments.

Available Models

ES1686dc-2142IT-128G
Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz), 128 GB DDR4 ECC memory (64 GB per controller)

ES1686dc-2142IT-96G
Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz), 96GB DDR4 ECC memory (48 GB per controller)

ES1686dc-2123IT-64G
Intel® Xeon® D-2123IT 4-core 2.2 GHz processor (burst up to 3.0 GHz), 64 GB DDR4 ECC memory (32 GB per controller)


Active-Active high availability with optimal storage efficiency
In Active-Active storage system architecture, both controllers are able to provide a complete range of services, which is different from the Active-Standby architecture of single-controller systems. The Active-Active architecture does not have the disadvantage of idle computing resources. To leverage the strengths of the ES1686dc Active-Active controller architecture, it is recommended to create multiple storage pools and distribute their ownership between both controllers. This allows simultaneous output from both controllers for better load balancing.

Active-Standby single-controller system
With two HA systems you are paying twice the price and causing a load imbalance as workloads are only processed on the active system. A power outage could cause data loss, and the disconnected network invalidates the HA architecture.

Active-Active dual-controller system
Both controllers of the ES1686dc can carry traffic, along with Copy-To-Flash protection against power failure and the dual-path SAS interface. Besides conserving computing resources, a high-speed, uninterrupted, and high-availability storage service is also provided through communication protocols such as SMB, NFS and iSCSI.

Intel® Xeon® D dual-controller ensures high availability and failure-resistant service
Powered by two Intel® Xeon® D processors, the ES1686dc features a dual active-active controller architecture that provides failover/failback operations as the standby controller can quickly take over if one controller breaks down. Redundant hot-swappable power supplies and cooling fans are also included to provide businesses with near-zero downtime high availability. The ES1686dc connects to the JBOD enclosure (EJ1600 v2) via the dual-path mini-SAS design to sustain continuous operations even if a JBOD cable is disconnected. Designed around redundancy, the ES1686dc is the best realization of reliable enterprise storage for uninterrupted mission-critical enterprise tasks and productivity.

Multi-level cache technology with both read and write
The ES1686dc simultaneously supports main memory read cache (L1 ARC), SSD secondary read cache (L2 ARC), and memory write cache (ZFS Intent Log) to meet performance demands for various enterprise applications.

Up to 512 GB main memory
Each controller has eight RDIMM slots, allowing for up to 512 GB memory.
Note: The main memory will retain 8GB for use by the read cache.

M.2 SSD cache
Two M.2 SSD slots (support PCIe Gen3 x4 or SATA 6Gb/s SSDs) provide the ability to enable SSD caching to increase IOPS performance.

Note: M.2 SSDs sold separately.
NVRAM cache reduces the risk of losing write cache data
If unplanned power outages occur, the system can write cache data from the battery-protected DRAM to M.2 SSD through Copy To Flash (C2F) to ensure that data is not lost.
Note: To ensure write cache data safety, it is recommended to annually replace the BBU. QNAP provides one-year warranty for the BBU.
PCIe expansion for 40GbE high-speed networks

The ES1686dc provides two PCIe Gen3 x8 slots connected to the CPU, allowing you to install lightning-fast 10GbE/40GbE network cards to boost virtualization, media streaming, and other bandwidth-demanding applications. Installing Mellanox® Smart NICs further adds support for iSER for improved VMware® virtualization performance. You can also install a QM2 expansion card (QM2-4P-384) to add four additional M.2 2280 PCIe NVMe SSD slots to burst reading performance with SSD caching, or a SAS expansion card (SAS-12G2E) for connecting up to seven 16-bay EJ1600 v2expansion enclosures to seamlessly expand the potential storage capacity over 1PB, with unprecedented performance of up to 48Gbps per host connection.

Dual controller NAS: High reliability and high availability
“Reliability” is the priority for mission-critical business applications. The ES1686dc adopts dual active-active controllers to provide the most reliable base for business IT storage.

Supports SAS 12Gb/s and SAS 6Gb/s hard drives and SSDs to allow the perfect balance of performance and capacity.
Leverage the 6Gbps SAS to SATA drive adapter
While SATA 6Gb/s SSDs provide high-performance yet affordable storage, the lack of dual-port support makes them unsuitable for dual-controller environments. The QDA-SA adapter is designed for QNAP Enterprise ZFS NAS, and allows the use of a SATA 6Gb/s drive in a 3.5-inch SAS drive bay - providing the ability to expand storage capacity by using cost-effective SATA drives. By installing a SATA drive with the QDA-SA into the dual-controller ES1686dc, the SATA drive can share these SAS dual-port advantages to ensure a high-availability, fault-tolerant enterprise storage environment.

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 and QTS comparison
  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).



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.

Note: The Write coalescing algorithm in QES 2.1.0 does not support for dual-controller NAS. This will be supported in future versions of QES.

Write Coalescing algorithm
Transforms all random writes to sequential writes along with reduced I/O. It not only effectively increases random write performance for all-flash environments but also can improve SSD lifespans.
Software-defined over-provisioning
Users can allocate an additional over-provisioning ratio for SSDs (from 1% to 60%) and Storage Pools (from 1% to 40%) for a constant performance boost of over 100%.
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.

Inline data deduplication
Block-based data deduplication optimizes storage usage and significantly decreases storage capacity requirements.
Inline compression
Shrinks data size to reduce storage I/O workloads for improved performance. In VDI, deduplicated virtual desktops are easily cached to achieve optimal virtual desktop performance.
Inline compaction
Especially helpful for increasing SSD storage utilization efficiency when highly-repetitive data or massive small files (e.g. transaction logs of banks or e-commerce) are generated. It delivers higher cost efficiency of all-flash storage systems. 

Note: Data compaction in QES 2.1.0 does not support dual-controller NAS. This will be supported in future versions of QES.
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.

Streamlined remote backups with nearly limitless snapshots and SnapSync
The ES1686dc supports up to 65,535 snapshots for iSCSI LUN and shared folders (if 1 snapshot is created every hour, 24 snapshots per day, then up to 7 years worth of snapshots can be created without needing to delete any) and replicates snapshots to remote servers by using the block-level SnapSync. In the event of a primary site failure, SnapSync assists businesses to resume essential services in the shortest possible time.

VMware SRM
SnapSync supports VMware Site Recovery Manager (SRM) that offers enterprise-class remote backup and disaster recovery solutions for virtual applications. With the Storage Replication Adapter (SRA) for SRM, operation overheads of the ESXi® server can be offloaded to a QNAP NAS to accelerate and simplify virtual machine backup and restoration.

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

VMware SRM
SnapSync supports VMware Site Recovery Manager (SRM) that offers enterprise-class remote backup and disaster recovery solutions for virtual applications. With the Storage Replication Adapter (SRA) for SRM, operation overheads of the ESXi® server can be offloaded to a QNAP NAS to accelerate and simplify virtual machine backup and restoration.

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

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. To build a QNAP Snap Agent and VSS Hardware Provider operating environment, all applications (including VSS Service, Requestor, Provider and QNAP Snap Agent) can be deployed with VSS-Aware applications on the same server, and the minimal requirements are only one ES1686dc and one server for it to be operational.

Compatible with VMware, Microsoft and Citrix virtualization, and supports iSER
The ES1686dc supports VMware® vSphere® 6.5, Windows Server® 2016, and Citrix XenServer® 7.0 for flexible deployment and management in virtualization environments. It also supports VMware® VAAI and Microsoft® ODX to increase performance by offloading server loading for ESXi® server and Hyper-V® respectively. The QNAP vSphere Client plug-in, Web plug-in and QNAP SMI-S provider are also supported to increase the efficiency of operations and management in virtualization applications. The ES1686dc and VMware® ESXi server installed with Mellanox® Smart NICs that support iSER can acquire iSER advantages to offload CPU workloads with boosted VMware® virtualization performance.

QES is OpenStack Ready to explore out-of-the-box enterprise cloud services
QES supports OpenStack® Cinder and Manila file sharing services. With the QNAP Cinder Driver, the ES1686dc can provide block-level storage space to virtual machines. It not only accelerates the deployment of virtual machines and enhances virtual machine image access efficiency through iSCSI, but it is also easier to integrate into commercial cloud storage platforms, providing businesses with a flexible, easy-to-use, and low-cost storage solution.

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.


CPU Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz) per controllerr
Intel® Xeon® D-2123IT 4-core 2.20 GHz processor (burst up to 3.0 GHz) per controller
CPU Architecture 64-bit x86
Floating Point Unit  
Encryption Engine  (AES-NI)
System Memory 64 GB RDIMM DDR4 ECC (4 x 16 GB) per controller
48 GB RDIMM DDR4 ECC (4 x 4 GB+4 x 8GB) per controller
32 GB RDIMM DDR4 ECC (4x 8 GB) per controller
Maximum Memory 512 GB (8 x 64GB)
Memory Slot 8 x DDR4 RDIMM/LRDIMM 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/SATA hard disk drives
2.5-inch SAS/SATA hard disk drives
2.5-inch SAS/SATA solid state drives
Hot-swappable  
M.2 SSD Slot 2 x M.2 port
Supports SATA 6Gb/s or NVMe Gen3 x4 2280
SSD Cache Acceleration Support  
Cache for Copy To Flash (C2F) 1 per each controller (64GB)
Gigabit Ethernet Port (RJ45) 3 for each controller (one for remote management)
10 Gigabit Ethernet Port 4 x 10G SFP+ for each controller
Jumbo Frame  
PCIe Slot 2
Slot 1: PCIe Gen3 x8 (CPU)
Slot 2: PCIe Gen3 x8 (CPU)
USB 3.0 port 2 per each controller
Form Factor 3U Rack Mount
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 × 483.05 × 630.62 mm
Weight (Net) 25.83 kg
Weight (Gross) 32.69 kg
Operating temperature 0 - 40 °C (32°F - 104°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)
Sound Level 55.8 db(A)
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. Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting. 
* Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front of operating NAS.
Designs and specifications are subject to change without notice.



ES1686dc-2123IT-64G Qtier
ComparisonQtierSSD CacheFull SSD
1.Available SSD Space Expandable as needed Limited by available memory* Expandable as needed
2.Price LowLowHigh
3.Applicable storage Volume/LUN Volume/LUN Volume/LUN
4.Data Migration Method ScheduledAutomatic-
5.Data migration Mechanism Moves data to different tiers depending on access frequencyReplicates frequently-accessed data to SSD storageAll data stored on SSDs
6.Application Scenarios Used for predictable I/O workloads such as file/web/email servers, application virtualization or video editing.Used for highly frequent data access environment such as application virtualization or video editing.Used for applications requiring fast/intensive I/O such as databases or virtualized environments.

Read more about Qnap ES1686dc-2123IT-64G auto tiering.

Spanstor Build And Test
If you buy this Qnap 19"Rack ZFS NAS and hard drives we do free build and test for the unit and hard drives. So you can use this device straight out of the box. All free of charge in ES1686dc-2123IT-64G price.
Same Day and Next Day Delivery available in UK and fast WorldWide delivery for products in stock.
FREE Business Quotes available for products with specific requirements or quantities. Often cheaper than Amazon.


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Specifications

General

Stock code IBQ-RES1686-23x64
Brand Qnap
Series 19"Rack ZFS NAS
Model ES1686dc-2123IT-64G
Type 16-Bay, 3U, 12Gb SAS/SATA RAID (64GB ECC RAM, Xeon 4-core) + 10GbE
ROHS Y
Date added 28/03/2019

ES1686dc-2123IT-64G Spec Information

Form Factor / Drive Height 483 x 631 x 132mm
Platter size 3.5"
Platter (alternate) 2.5"
RAM/Cache 64GB
Guarantee 5yr
Processor Intel® Xeon® D-2123IT quad-core 2.20 GHz processor per controller (up to 3.0 G...
CPU Mark (cpubenchmark.net) 2x 8100
Redundant PSU ? Not available
Total Drives 16
RAID 0:1:5:6:JBOD:
RAID Levels Single disk, RAID 0 (Disk Striping), RAID 1 (Disk Mirroring), RAID 5, RAID 5+ Ho...
Rack size 3

ES1686dc-2123IT-64G Spec Connections

sub- connectionI/EQuantity
LANSFP+ 10GbEExternal8
SAS/SATASFF-8482 (Internal)Internal16
USB3USB3 type A (host)External4
PCIePCIe v3 x8Internal2

Software

ES1686dc-2123IT-64G Speed

Speed/RPM 12Gb SAS/SATA to 10GbE Ethernet

Physical

Colour Black
Weight (kg) 32.69kg
Weight (bare) 25.83kg
Watts Redundant 770W
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Unit 19,
Red Lion Business Centre,
Red Lion Road,
Tolworth, Surbiton,
Surrey,
KT6 7QD
England -UK

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