Active-Active Dual Controller Storage

Designed for all virtualization environments and business-critical applications

Dual Controller NAS

"Reliability" is the primary priority for mission critical business applications. The ES1640dc v2 adopts dual active-active controllers to provide the most reliable base for business IT storage. The ES1640dc v2 connects to the JBOD enclosure EJ1600 v2 / EJ1600 via the dual path mini-SAS design to sustain continuous operations even if an external JBOD cable is disconnected. Designed around redundancy, the ES1640dc v2 is the best realization of reliable enterprise storage for uninterrupted mission-critical enterprise tasks and productivity.

Comprehensive Virtualization

With Intel® Xeon® E5 processors, dual active controllers, ZFS and fully supporting virtualization environments, the ES1640dc v2 delivers "real business-class" cloud computing data storage. The ES1640dc v2 features the brand-new QES operating system that allows almost limitless snapshots, block-level data deduplication, and thin provisioning with reclaim, assisting businesses in building the most cost-efficient VDI platform and storage for critical data. The ES1640dc v2 provides a smiliar user experience as the award-winning QTS operating system from QNAP, allowing IT professionals to quickly deploy the system, and making it ideal for businesses with budget constraints or large-scale IT divisions coping with mission-critical tasks.
Hardware Specification Competitor Comparison



To increase random write performance and reliability, the ES1640dc v2 features NVRAM modules (DRAM Write Cache with Copy-to-flash) to protect write data. When data is written into NVRAM, there are dedicated backup battery units to protect writing to the cache, and at the same time the data is replicated to a backup controller, to achieve 100% data integrity. NVRAM-backed write cache in the dual-controller architecture presents high performance, fault-tolerant, and helps reduce flash SSD write amplification.


Deduplication & Compression

There could be over 90% duplicate data from OS images and applications that are spread over virtual desktops. The ES1640dc v2 supports block-based data deduplication to optimize storage usage from redundant data. Deduplicated virtual desktops become easier to be cached to achieve optimal virtual desktop performance. In-line data compression helps shrink data size, further optimizing storage usage. For mastering storage in a virtualized environment, the ES1640dc v2 provides businesses with the most cost-effective remote virtual desktop platform and mission-critical information warehousing.


Storage for Virtualized Environment

The ES1640dc v2 is certified for VMware® vSphere 6.0, and is compatible with Microsoft® Hyper-V and KVM, benefiting flexible deployment and management in virtualization environments. The ES1640dc v2 supports VMware VAAI and Microsoft ODX to increase performance by offloading server loading for ESXi server and Hyper-V respectively, and supports QNAP vSphere Client plug-in, Web plug-in and QNAP SMI-S provider with enhanced efficiency of operations and management in virtualization applications.

ES1640dc v2 VS. THE OTHERS

ES1640dc v2 VS. THE OTHERS

QNAP ES1640dc v2 QSAN TrioNAS LX U600Q S-316 EMC VNXe 3300 NetApp FAS2520A
Controllers Dual Dual Dual Dual
Form Factor 3U 16 bay 3U 16 bay 3U 15 bay 2U 12 bay
CPU* Intel Xeon E5-2420 v2 2.20GHz 6C12T Intel Xeon C3528 1.73GHz 2C4T Intel Xeon E5-2407 v2 2.40GHz 4C4T Intel Xeon LC3528 1.73GHz 2C4T
Memory* 32GB (max. 64GB) 16GB 12GB 16GB
Read Cache SSD (global) SSD (dedicate) 256MB RAM FAST Cache (SSD, optional) Flash Cache (HW, optional) Flash Pool (SSD)
Host Channel* 10GbE (SFP+) x 4
10GbE (RJ45) x 2
1GbE x 1
10GbE x 2
1GbE x 3
1GbE x 5 10GbE x 4
1GbE x 2
40GbE Support
 * Per controller
High Performance
Fault Tolerance
Data Integrity
Disaster Recovery