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QNAP ES2486dc-2142IT-128G-US 24-Bay Enterprise ZFS All Flash NAS, SAS 12Gb/s, backward-compatible to SAS 6Gb/s, Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz) per controller, 64GB RDIMM DDR4 ECC (4 x 16GB) per controller, 14-LAN (4 SFP+ / 3 RJ45 for Each Controller), SSD read cache, Storage pool with RAID 0, 1, 5, 6, 10, 50, 60, RAID TP, triple Mirror, max 512GB RAM, PCIe expansion slot x 2, redundant power supply.
- Processor: Intel® Xeon® D-2142IT 8-core 1.90 GHz processor (burst up to 3.0 GHz) per controller, 64bit
- System Memory: 64 GB RDIMM DDR4 ECC (4 x 16 GB) per controller
- Maximum Memory: 512 GB (8 x 64GB)
- 10 Gigabit Ethernet Port: 4 x 10G SFP+ for each controller
- Gigabit Ethernet Port: 3 for each controller (one for remote management)
- Drive Compatibility: 24 x /2.5" SAS 12Gb/s, backward-compatible to SAS 6Gb/s
- Multi-level Cache: simultaneously supports read caches including primary cache (L1 ARC), SSD cache as a secondary cache (L2 ARC), and write cache ZFS Intent Log (ZIL) for synchronous transactions to meet performance demands for various enterprise applications.
The ES2486dc Enterprise ZFS NAS is QNAP's first high-availability NAS with all-flash arrays and dual active controllers. Powered by an Intel® Xeon® D-2142IT 8 cores/16 threads processor, the ES2486dc supports up to 24 x 2.5-inch SAS 12Gbps SSDs and provides excellent I/O throughputs. Random write performance for all-flash arrays is further driven by the flash-optimized QES 2.1.1 operating system that comes pre-installed on the ES2486dc. The QES uses ZFS to support logical volume management; block-based inline data deduplication and inline compression reduce I/O and SSD storage consumption, which significantly extends SSD lifespan with higher price-performance ratio for all-flash storage arrays. Coupled with near-limitless snapshots and SnapSync for data protection, the QES-based ES2486dc fulfills demanding business applications, such as mission-critical file servers, virtualization servers, VDI, medium-sized data center, video streaming, surveillance storage, and efficient file backup and recovery.
- Intel® Xeon® D dual active-active controllers provide superb uptime and redundancy to ensure high availability (HA).
- Battery-protected DRAM write to cache data protection and flash read acceleration provides industry-leading random access performance.
- PCIe expandability allows for 10GbE/25GbE/40GbE adapters to increase application performance.
- Four 10GbE SFP+ ports accelerate large file sharing and intensive data transfer from virtualization or datacenter.
- 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® 2019 and Citrix® XenServer® 7.0 for storage virtualization. Compatible with OpenStack® cloud environments.
Active-Active high availability with optimal storage efficiency
In Active-Active storage system architecture, both controllers can provide a comprehensive range of services, which is different from the Active-Standby architecture of single-controller systems. An advantage of Active-Active architecture is the lack of idle computing resources. To leverage the strengths of the ES2486dc Active-Active controller architecture, QNAP recommends creating multiple storage pools and distributing ownership between both controllers to enable simultaneous output from both controllers for improved load balancing.
Active-Standby single-controller system
With two HA systems you are paying twice the price, and the HA system can cause load imbalances because workloads are only processed on the active system. Moreover, a power outage can cause data loss, while network disconnections will invalidate the HA architecture.
Active-Active dual-controller system
Both controllers of the ES2486dc can carry traffic, along with Copy-To-Flash protection against power failure and the dual-path SAS interface design. 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 controllers optimize inline deduplication and SSD workloads
Powered by Intel® Xeon® D-2142IT 8 cores/16 threads processors, the ES2486dc delivers massive computing power to maximize inline data deduplication and inline compaction performance. The dual active-active controller architecture provides failover/failback operations since the standby controller can quickly take over if one controller breaks down. Redundant hot-swappable power supplies and cooling fans also provide businesses with near-zero downtime and high availability. The ES2486dc connects to the JBOD enclosure (EJ1600 v2) through dual-path mini-SAS design and can sustain continuous operations even if a JBOD cable is disconnected.
Multi-level cache technology with read and write support boosts storage performance
The ES2486dc simultaneously supports read caches including primary cache (L1 ARC), SSD cache as a secondary cache (L2 ARC), and write cache ZFS Intent Log (ZIL) for synchronous transactions to meet performance demands for various enterprise applications.
|Up to 512 GB main memory||NVRAM cache reduces the risk of losing write cache data||SSD cache|
|Each controller has eight RDIMM slots, allowing up to 512 GB memory.
Note: The main memory will retain 8 GB through the ZIL cache.
|If a sudden power outage occurs, the system can write cache data from the battery-protected DRAM to M.2 SSD through Copy To Flash (C2F) to ensure data security.
Note: To ensure write cache data security, QNAP recommends replacing BBU annually. QNAP provides a one-year warranty for the BBU.
|Configure SSDs for SSD caching to increase IOPS performance and reducing latency for storage volume.|
Use SAS or SATA SSDs flexibly within your IT budget
Although SATA 6Gbps SSDs provide high-performance affordable storage, this type of drive is unsuitable for dual-controller environments because it lacks dual-port support. By using a QDA-SA3 adapter specially designed for QNAP all-flash Enterprise ZFS NAS, a SATA 6Gbps drive can be used in the 3.5-inch SAS drive bay of the ES2486dc— allowing storage capacity expansions with cost-effective SATA drives. By installing a SATA SSD with the QDA-SA3 into the dual-controller ES2486dc, the SATA SSD can share SAS dual-port advantages to ensure a high-availability and fault-tolerant enterprise storage environment.
PCIe expansion for 25GbE/40GbE high-speed networks
The ES2486dc provides two PCIe Gen 3.0 x8 slots connected to the CPU, allowing you to install lightning-fast 10GbE/25GbE/40GbE network cards to boost virtualization, media streaming, and other bandwidth-demanding applications. Installing a Smart NIC that supports iSER can improve VMware® virtualization performance. You can also install a SAS expansion card ( SAS-12G2E ) for connecting up to seven 16-bay EJ1600 v2 expansion enclosures to seamlessly expand potential storage capacity to over 1PB, with unprecedented performance of up to 48 Gbps per host connection.
QES 2.1.1: ZFS-based, and optimized for all flash performance
The ES2486dc features the QES (QNAP Enterprise Storage) 2.1.1 operating system which is based on the simple and efficient FreeBSD kernel and ZFS file system for high-end enterprise applications. QES 2.1.1 not only provides reliable data protection, recovery, and business-class features, it is also optimized for flash storage to drive outstanding performance of all-flash storage arrays, accelerating mission-critical services and eliminate challenges in VDI environments. QES 2.1.1 also comes with Quality of Service (QoS) capabilities to ensure consistent primary storage performance in multi-application environments. The flash-optimized QES 2.1.1 continues the same user experience as the intuitive QTS, thus easy to learn for enterprise users and can be quickly implemented into existing IT infrastructures.
Unleashed SSD potential – cost-effective and agile with ultimate performance
QES 2.1.1 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.
Write Coalescing Algorithm
Transforms all random writes to sequential writes along with reduced I/O. Not only does it effectively increase random write performance for all-flash environments, but also improves SSD lifespan.
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 over 100%.
Deduplication and compression optimizes storage usage for virtualization
The QES-powered ES2486dc 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.
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.
Especially helpful for increasing SSD storage utilization efficiency when highly-repetitive data or massive small files (e.g. bank or e-commerce transaction logs) are generated. Delivers higher cost efficiency for all-flash storage systems.
Self-Healing ensures data integrity and reliability
Designed with a focus on data integrity, the QES-based ES2486dc uses its end-to-end checksums to detect and correct silent data corruption caused by hardware defects, firmware bugs or metadata errors. If data integrity violations are detected, QES automatically repairs the data with data from the other mirror before passing it to applications.
Streamlined remote backups with nearly limitless snapshots and SnapSync
The ES2486dc supports up to 65,535 snapshots for iSCSI LUN and shared folders. In other words, if one snapshot is created every hour, and 24 snapshots are created per day, you can create up to 7 years' worth of snapshots without having to delete any! The ES2486dc also replicates snapshots to remote servers through block-level SnapSync. In the event of a primary site failure, SnapSync assists businesses to resume essential services in the shortest possible time.
Create VMware/Windows backups for VSS-Aware applications using QNAP Snapshot Agent
QNAP NetBak Replicator is easy-to-use with VSS-aware backup software, helping businesses to create complete backups in data centers and virtualization environments without requiring 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 ES2486dc and one server for it to be operational.
Compatible with VMware, Microsoft, and Citrix virtualization, and supports iSER
The ES2486dc supports VMware® vSphere® 6.5, Windows Server® 2019, 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 and Web plug-in are also supported to increase operations and management efficiency in virtualization applications. The ES2486dc and VMware® ESXi server installed with Smart NICs that support iSER can acquire iSER advantages to offload CPU workloads with boosted VMware® virtualization performance.
OpenStack Ready for exploring out-of-the-box enterprise cloud services
QES supports OpenStack® Cinder and Manila file-sharing services. With the QNAP Cinder Driver, the ES2486dc can provide block-level storage space for 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.
|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|
|System Memory||64 GB RDIMM DDR4 ECC (4 x 16GB) 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
|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|
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
|Dimensions (HxWxD)||88.3 × 483 × 545.1 mm|
|Weight (Net)||27.41 kg|
|Weight (Gross)||32.83 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;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)|
|Safety Standard||FCC Class A (USA only)
CE Mark ( EN55022 Class A, EN55024)
* 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.
The Case for buying an Integrated NAS System from SimplyNAS
Buying a NAS doesn't have to be complicated or stressful. This may only occur at times when looking to buy a diskless NAS as the risk element of receiving a faulty NAS or drives are accentuated. Nothing wrong in buying a diskless NAS and adding your own drives, the savings made may offset the inconvenience of receiving faulty NAS/Drives and having to go deal with returns, or does it? The argument against buying a diskless and self-populating with drives is quite compelling.
- We ensure all drives are compatible with the relevant manufacturer, model provide conformity with the relevant compatibility guidelines.
- All our disk drives are sourced from manufacturer recommended distributors – we don't buy aftermarket drives or purchase on open grey markets.
- All our disk drives are sourced from manufacturer recommended distributors – we don't buy aftermarket drives or purchase on open grey markets.
- Our comprehensive batch rotation ensures customer avoid batch issues and thus promote reliability and longevity.
- Our methodology for configuration, setting RAID and in-depth burn testing process for disk drives and NAS servers is unsurpassed and the small premium paid for this service is worth its weight in gold.
- We are authorized partners for all the NAS servers we stock.
- We only sell and support NAS solutions, as a specialist our knowledge is unsurpassable.
- Our expertise within the technical arena for NAS servers, provides the glue for preventing our customers from making an incorrect buying decision, as we share our knowledge.
- Our extensive and professional burn-testing service ensure the optimization and deployment of both NAS and Disk Drives is done to provide peace of mind and total integration.
- Ready to use out of the box, no if's or buts.
Thinking of buying a NAS?
QNAP, Synology, QSAN and TerraMaster – Over fourteen Comprehensive years relationship culminating in our expertise of understanding all the NAS products, and skillfully combining performance, reliability and features to ensure our NAS experts are always at hand to help our customers optimize their storage needs.
At SimplyNAS we balance performance, reliability and compatibility to ensure customers get optimized NAS based disk solutions that perfectly match their Storage needs. All our pre-configured NAS systems are evenly balanced in the areas that really matter.
Call our NAS experts today at 407-960-4690
What is NASBIT?
NASBIT© is a Licensed trademark of SimplyNAS. The acronym stands for Network Attached Storage Burn in Testing. This term is used to describe the process of testing new Network Attached Storage (NAS) hardware and firmware for faults before putting it to use in a live environment. This is done by running 'Stress testing' software for a stipulated period of time often 24 to 48 hours, but longer if needed.
When we receive an order for a NAS system pre-installed with disk drives it's prepared and configured with RAID followed by burn testing to ensure the entire system undergoes a thorough examination thus ensuring the server passes all tests to the highest standards set by us. Should the system hardware or any associated components fail at any point of the testing cycle the system is pulled and returned back as faulty our relevant vendor partner, the process seems simple but setting it up is far from easy.
Hard Disk Drives
All Hard disk drives are pre-tested prior to integration; the smallest of faults be it tolerable within industry standards are classified by us as faults, the hard drive is rejected and eliminated from the process and again returned back to source as a D.O.A. (dead on arrival). We continue to select drives from different batches, so as to eliminate any bad batches that may have been produced during manufacturing.
One integrated the drives are put through a vigorous routine that includes stress testing, including temperature tests and a host of read, writes to ensure the drive platters are stressed to the nth degree.
First, when the new server is turned on, we boot off of the network, and proceed to run the memory test that takes its sweet time, almost 10-12 hours dependent on manufacturer and model.
The appropriate RAID level is set and the system awaits completion of RAID synchronization. Once completed the NAS server undergoes numerous re-boots and a deletion of original RAID and a final re-build of RAID level again.
Why is NAS Burn in Testing (NASBIT©) necessary?
If within the designated time span the NAS servers are still running and with zero faults, it is considered suitable for rolling out to our customers. If there is a failure of any kind the systems is replaced with a new one, including hard drives and the process starts again, until the NAS servers passes with ZERO faults.
You would normally expect that this level of testing would be completed by the hardware manufacturers and so these tests shouldn't show up any faults. In our experience of testing hundreds of machines we do find faults, and we do send systems back.
The reason it is so important to perform this level of testing on NAS servers is that the uptime demands are so high. The slightest faults will cause outages and downtime. Once a NAS server is deployed, never again will you have the opportunity to take it offline and perform such detailed testing. Even if it were to crash, there is always a demand that it be put back online as quickly as possible, not left offline whilst thorough diagnostics are completed.
Always remember this is hardware and failures can and will occur even after burn testing has been carried, that is a fact of life we cannot avoid, but we do try and eliminate some of the hassle factor with testing. Thank you for buying from us, we truly appreciate your custom.
NOT AVAILABLE ON DISKLESS UNITS - ONLY FOR SYSTEMS PRECONFIGURED WITH HARD DISK DRIVES
We try our best to get orders shipped as quickly as possible. However, due to the current situation with the Coronavirus, some manufacturers are experiencing stock constraints, shipping delays due to warehouse closures, delays in customs or other unforseen circumstances which can sometimes delay an order as stock levels can change hourly. We understand that your order may be urgent, so if you want to check if something is in stock before you place your order, please call us at 407-960-4690 during our normal business hours of 9-6PM EST. We also try to be transparent on the site with availability and shipping times. We do sometimes make mistakes and greatly appreciate your understanding if this occurs. Please allow some grace and patience as we work through the difficulties and challenges of communicating with our suppliers to keep up with supply changes.
So when can I expect a shipping notification for my order?
- Diskless orders that are in stock will ship same day if placed before 2pm.
- Diskless units that are not in stock we will ship directly from our suppliers warehouses. This could delay shipping by 1 - 3 business days.
- Configured systems are considered special order. This means that they are not already pre-built and ready to ship when you place an order. When you purchase a configured system from us it will not ship out for at least 2 - 3 business days due to the time it takes to pick, assemble, test, RAID and prepare your order for shipment. If we do not have one of the components on the build, that will further delay shipment as we have to wait for stock to come to us. You will receive updates for the order as it goes into testing.
When will my card be charged for an order?
We do not immediately charge your credit card when you submit an order, instead a temporary hold is placed on your card for the amount of the purchase. If everything is in stock, we will charge your card and process you order for building or shipment. Should there be a delay of some sort, we will notify you by email with the ETA and ask for approval to charge your card and process your order. Please be advised that we cannot allocate stock to you without prepayment. So, if you approve the ETA, we will immediately charge your card so that we can secure the stock from our suppliers. Once this charge occurs, any cancellation will incur a 3% fee.
Security and Payment Verification Requests
We take customer security very seriously as fraud and chargebacks are costly. In order to protect you and keep our costs to a minimum, we may ask you to verify your identity when you place an order. If your billing and shipping differ, or if the billing and shipping parties differ and we can't veryify you as a legitimate business, we will send a request by email with a link, asking you to upload documentation for us. We understand that this may make some people nervous, but you are sending your files to the same secured server as your payment and no one can access the files except for the staff who verify them. Your files are purged from the server within 120 days of payment date. As we cannot physically verify your identity when you place an order, this is the only way for us to accomplish this so we ask that you complete the verification as we won't be able to process your order until this step is completed.