QN1622142128

ES1686DC-R2-2142IT-128G-US

QNAP

The ES1686dc R2 16-Bay NAS Enclosure from QNAP helps ensure uninterrupted mission-critical business operations. It features a dual active-active controller architecture that provides failover/feedback operations as the standby controller takes over if one breaks down. This minimizes downtime, allowing component replacement without disruption, ensuring reliability for continuity for enterprises.The ES1686dc R2 is equipped with sixteen 2.5/3.5" drive bays that support SAS III 12 Gb/s or SAS II 6 Gb/s hard drives and solid-state drives, dual 1.9 GHz Intel Xeon D-2142IT 8-Core processors (one per controller), 128GB of 2133 MHz DDR4 ECC Registered RAM (64GB per controller), eight 10GbE SFP+ ports (four per controller), six 1GbE ports (three per controller), four USB-A 3.2 Gen 1 ports (two per controller), and four PCIe 4.0 x8 slots (two per controller). It operates using the QES 2.2.1 operating system and runs the ZFS file system for snapshots, SnapSync, block-level data deduplication, and inline data compression, with sequential read speeds of up to 5773 MB/s and sequential write speeds of up to 2201 MB/s when using all eight 10GbE ports.Active-Active Architecture: 2 Units in a Single Chassis Active-Standby Architecture:If the active system fails, the standby system starts up and takes over processing.Requires purchasing two systems for HA, doubling the cost.Causes load imbalance as only the active system processes workloads.A power outage may lead to data loss.Network disconnection invalidates the HA architecture, rendering it ineffective. Active-Active Architecture:Both systems are active simultaneously.Both controllers handle traffic, optimizing workload distribution.Copy-To-Flash protection safeguards data against power failure.Dual-path SAS interface ensures seamless connectivity.Efficient resource utilization, reducing computational waste.High-speed, uninterrupted, and high-availability storage service.Supports multiple communication protocols: SMB, NFS, and iSCSI. Intel Xeon D Processors Bring High Performance and Efficiency Powered by two 1.9 GHz Intel Xeon D-2142IT 8-Core processors, the ES1686dc R2 features a dual active-active controller architecture that provides failover/failback operations as the standby controller takes over if one controller breaks down. It is also equipped with 128GB of DDR4 ECC Registered RAM (4 x 16GB per controller) that may be upgraded to 512GB (8 x 64GB). Using 8 x 10GbE connections, users can achieve sequential read speeds of up to 5773 MB/s and sequential write speeds of 2201 MB/s.Multi-Tier Caching The ES1686dc R2 simultaneously supports main memory read cache (L1 ARC), SSD secondary read cache (L2 ARC), and memory write cache (ZFS Intent Log) to meet performance demands of various enterprise applications. Note: The main memory will retain 8GB for use by the write cache.NVRAM In the event of power failure, the system can write cache data from the battery-protected DRAM to M.2 SSD through Copy To Flash (C2F) to ensure that data is not lost.PCIe Gen 3 Slots The ES1686dc R2 provides two PCIe Gen 3 x8 slots per controller connected to the CPU, allowing you to add additional functionality to meet growing workload and business requirements.Network Card Supports up to 25GbE, boosting virtualization, media file transfer, or adding support for iSER for improved virtualization performance.SAS Storage Expansion Card With the QXP-820S-B3408 SAS storage expansion card, you can scale up the ES1686dc R2 with QNAP's TL SAS expansion enclosures.Petabyte-Scale, Dual-Controller SAS Storage Expansion Gain petabyte-scale storage capacity using the QNAP's expansion enclosure. Dual-channel (dual-path) connections allow service continuity, even if one node fails.NAS Hardware You Can Rely On High-Capacity Storage: 16 x 3.5" SAS III/II drive baysPowerful Processor and Memory: Dual 1.9 GHz Intel Xeon D-2142IT 8-Core processors (one per controller) and 128GB of 2133 MHz DDR4 ECC memory (64GBGB, 4 x 16GB per cont