QNAP ES2486AFdc-2142IT-128G
The QNAP ES2486AFdc combines an Active-Active dual-controller architecture with 24 hot-swappable 2.5-inch dual-port U.2/U.3 NVMe PCIe SSD bays. Powered by Intel(R) Xeon(R) D-2142IT processors and the ZFS-based QES operating system, it is designed for high availability, consistent low latency and enterprise data protection.
What is the QNAP ES2486AFdc-2142IT-128G?
It is a 2U enterprise all-flash storage system with two independent controllers that process I/O concurrently. This configuration includes 64GB RDIMM DDR4 ECC memory per controller, for 128GB total system memory, alongside built-in 10GbE SFP+ connectivity, Copy-to-Flash protection and dual-port U.2/U.3 NVMe SSD support.
Active-Active High Availability
Both controllers operate simultaneously to provide redundancy, system bandwidth and computational capability.
Concurrent I/O Processing
Two independent controllers process I/O requests at the same time rather than using a traditional Active-Standby configuration.
Seamless Failover
If one controller fails, the other controller takes over the NVMe drives and network IPs through the PCIe Non-Transparent Bridge internal connection.
Nearly Zero Downtime
The supplied product information states that NAS services including SMB, NFS, iSCSI and Fibre Channel remain available without front-end reconnection.
Write Cache Protection and Data Integrity
Battery-backed Copy-to-Flash protection works with the ZFS-based QES operating system.
Each controller includes a 64GB M.2 SSD for Copy-to-Flash protection. During an unexpected power outage, the BBU helps securely write cached DRAM data to the M.2 SSD protection area to prevent data loss.
QES is based on the FreeBSD kernel and ZFS file system. The supplied product information highlights end-to-end data integrity and support for up to 65,535 snapshots for iSCSI LUNs and shared folders using Copy-on-Write technology.
NVMe All-Flash Performance
Dual-port NVMe storage is designed to reduce latency and remove SAS 12Gb/s bandwidth limitations.
U.2 / U.3 Compatibility
Each hot-swappable 2.5-inch bay supports dual-port U.2/U.3 NVMe PCIe SSDs.
Ultra-Low Latency
The NVMe protocol reduces command queue wait times for latency-sensitive database and transaction workloads.
Supplied Performance Figures
The supplied description states performance of over 616,000 iSCSI 4K random read IOPS and throughput of up to 15GB/s.
Networking, Expansion and Storage QoS
Built-in high-speed networking and expansion options support enterprise storage deployments.
Each controller includes four 10GbE SFP+ ports and three Gigabit Ethernet RJ45 ports, with one Gigabit Ethernet port assigned for remote management. Two PCIe expansion slots are also provided per controller.
QNAP Storage QoS is designed to deliver stable and predictable performance from a single storage pool. The ES2486AFdc can also complement the ES1686AFdc by pairing Tier 1 mission-critical all-flash storage with Tier 2 general-purpose and capacity storage.
Frequently Asked Questions
Quick answers about the QNAP ES2486AFdc-2142IT-128G.
How many controllers does the ES2486AFdc include?
It includes two independent controllers operating in an Active-Active configuration.
How much memory is installed?
This configuration includes 64GB RDIMM DDR4 ECC memory per controller, for 128GB total.
Which drives are supported?
The 24 hot-swappable 2.5-inch bays support dual-port U.2/U.3 NVMe PCIe SSDs.
What network connectivity is built in?
Each controller includes four 10GbE SFP+ ports and three Gigabit Ethernet RJ45 ports, with one Gigabit Ethernet port assigned for remote management.
How is cached data protected during a power outage?
The built-in BBU and Copy-to-Flash technology help write cached DRAM data to a dedicated 64GB M.2 SSD protection area on each controller.
How many snapshots does QES support?
The supplied product information states support for up to 65,535 snapshots for iSCSI LUNs and shared folders.
What is the standard warranty?
The supplied datasheet lists a standard five-year warranty.
Memory note: Use only one DIMM type at a time. Do not mix RDIMM and LRDIMM memory. Use compatible QNAP memory modules with identical specifications and refer to the hardware user manual.
Product images are for illustrative purposes only. Designs and specifications are subject to change without notice.
