QNAP ES2486dc-2142IT-96G 24bay NAS

QNAP ES2486dc NAS Rack (2U) Ethernet LAN Black D-2142IT 24x 2.5 Intel Xeon D-2142IT 48 GB RDIMM DDR4 ECC 4 GB Flash SFP+ LAN 700W 90-264V 88.3 x 483 x 545.1 mm 27.41 kg . Powerful and cost-efficient Intel® Xeon® D based Enterprise ZFS NAS optimized for inline deduplication and all-flash applicationsThe 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. Active-Active high availability with optimal storage efficiencyIn 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 systemWith 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 systemBoth 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 workloadsPowered 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 performanceThe 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. Use SAS or SATA SSDs flexibly within your IT budgetAlthough 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 ES24