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QNAP ES2486dc-2142it-128g 24-Bay Intel Xeon D Based Enterprise ZFS NAS
- 24 x 2.5″ SAS-3/SATA III Drive Bays
- 1.9 GHz Intel Xeon D-2142IT 8-Core
- 128GB of DDR4 ECC Registered RAM
- 8 x 10GbE SFP+ | 6 x 1GbE RJ45
- 4 x USB 3.2 Gen 1 Type-A Ports
- 2 x PCIe 3.0 x8 Slots
- RAID 0, 1, 5, 6, 10, 50, 60, and JBOD
- Sequential Reads up to 12,473 MB/s
- Sequential Writes up to 4923 MB/s
- QES 2.1.1 Operating System
- Rail Kit warranty: 5 years
QNAP ES2486dc-2142it-128g 24-Bay Intel Xeon D Based Enterprise ZFS NAS
The ES2486dc 24-Bay NAS Enclosure from QNAP is their first high-availability NAS with all-flash arrays and dual active controllers. Powered by a 1.9 GHz Intel Xeon D-2142IT 8-Core processor, the ES2486dc supports up to 24 x 2.5″ SAS 12 Gb/s or SATA 6 Gb/s 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 preinstalled on the ES2486dc. The QES uses the ZFS file system 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.
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.
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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.
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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.
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.
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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 2.5-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 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 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 ( ) for connecting up to seven 16-bay expansion enclosures to seamlessly expand potential storage capacity to over 1PB, with unprecedented performance of up to 48 Gbps per host connection.
Dual controller NAS: High performance, high reliability, and high availability
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3x hot-swappable system fans
The fans rotation speed will automatically adjust to the NAS temperature.
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Intel® Xeon® D-2142IT processor
Intel® Xeon® D-2142IT 8 cores/16 threads 1.9 GHz processor (burst up to 3.0 GHz) supporting DDR4 memory and PCI Express 3.0.
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DDR4 2133 MHz ECC memory
Quad-channel DDR4 ECC memory with 8 RDIMM slots providing up to 512 GB memory per controller.
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2x PCIe Gen 3.0 x8 slots
Supports 10GbE/25GbE network cards or SAS expansion cards for greater application potential.
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4x 10GbE SFP+ ports
Ideal for running bandwidth-demanding applications, such as virtualization and fast data backup or restoration.
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Battery Backup Unit (BBU)
If a sudden power outage occurs, the BBU enables write to cache data protection, while simultaneously replicating data to a backup controller to achieve 100% data integrity.
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3x Gigabit Ethernet ports
Supports Service Binding, Port Trunking, and MPIO. One Gigabit LAN port is dedicated to remote management.
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700W power supply
Power units are hot-swappable and the redundant power supply units in one chassis ensure continuous system uptime.
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Rail Kit warranty: 5 years
The ES2486dc 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.
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.
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