by Lyle Smith

QNAP Systems has announced the ES2486dc 24-drive bay all-flash storage solution, the newest addition new to the company’s enterprise ZFS NAS series. Designed to fulfill mission-critical file servers, virtualization servers, and commercial cloud applications, the new ES2486dc is QNAP’s first high-availability NAS that features all-flash arrays and is highlighted by dual controllers with Intel Xeon D-2142IT processors and 10GbE connectivity. The new storage solution also leverages the QES 2.1.1 operating system, which uses ZFS and supports of block-based inline data deduplication and inline compression.

The ES2486dc uses dual active-active controller architecture to promote “near-zero downtime high availability”. Each controller is equipped with four 10GbE SFP+ LAN ports and eight RDIMM slots, amounting up to a generous 512GB of memory. This battery-protected DRAM can write to cache data protection, which reduces data loss risks during unexpected shutdowns and failures. The ES2486dc also features:

  • Two PCIe slots support 10GbE/25GbE/40GbE network cards to boost virtualization and other bandwidth-demanding applications.
  • An optional SAS expansion card for connecting multiple EJ1600 v2 expansion enclosures to expand potential storage capacity to over 1 PB.
  • An optional QDA-SA3 6 Gbps SAS to SATA drive adapter, which allows supports SATA 6 Gbps SSDs in the 2.5-inch SAS drive bay
  • Supports VMware, Microsoft and Citrix®virtualization, SnapSync and VMware Site Recovery Manager (SRM) to offer enterprise-class remote backup and disaster recovery solution for virtual applications

The QES operating system is optimized for all-flash storage arrays and performs efficient data reduction with inline data deduplication and inline data compression. QNAP indicates that this will be beneficial for reducing I/O and SSD storage consumption, which can drastically extend the lifespan of an SSD.

QNAP ES2486dc Specifications

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  Yes
Encryption Engine  (AES-NI)
System Memory 64 GB RDIMM DDR4 ECC (4 x 16 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 24 x 2.5-inch

SAS 12Gb/s, backward-compatible to SAS 6Gb/s

Drive Compatibility 2.5-inch bays:
2.5-inch SAS/SATA hard disk drives
2.5-inch SAS/SATA solid-state drives

1. When installing SATA HDD/SSD, QDA-SA3 adapter is required.
2. The QDA-SA3 adapter is designed for QNAP Enterprise ZFS NAS and allows the use of a SATA 6Gbps drive in a 2.5-inch SAS drive bay

Hot-swappable  Yes
SSD Cache Acceleration Support Read cache only
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 10GbE SFP+ for each controller
Jumbo Frame  Yes
PCIe Slot 2
Slot 1: PCIe Gen 3 x8 (CPU)
Slot 2: PCIe Gen 3 x8 (CPU)
USB 3.0 port 2 per each controller
Form Factor 2U 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) 3.48 × 19.02 × 21.46 inch
Weight (Net) 60.43 lbs
Weight (Gross) 72.38 lbs
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;700W
Power Consumption: Operating Mode, Typical 579.59 W
Fan Hot-swappable fan module (60*60*38mm; 16000RPM/12v/2.8A x 3)
Sound Level 60.9 db(A)
System Warning Buzzer
Safety Standard FCC Class A (USA only)
CE Mark ( EN55022 Class A, EN55024)

QNAP ES2486dc

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