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Each storage controller features a BBU, one SAS host bus adapter (pre-installed in one of the PCIe slot),
one PCIe expansion slot, an onboard mini-SAS port, power-on button, two 10 Gigabit Ethernet ports,
one system management port, two USB 3.0 ports, one service port, and a reset button.
Redundant Power Supply
The power supply module is a 770 Watt switching power supply (Input: 100-127V~/10A, 50-60Hz; 200-
240V~/5A, 50-60Hz). The ES NAS has two identical power supply modules for power redundancy. If
either power supply fails, the other module will keep the system running until it can be replaced.
Note: Refer to Rear Panel LEDs and Buttons for power supply LED description.
PCIe expansion adaptors
The ES NAS adopts point-to-point, high-speed PCI Express (PCIe) Gen2 (x4) and Gen3 (x8) for I/O
expansions. The system can support one additional PCIe (Gen3 x8) attachment. The one with Gen2 (x4)
is pre-installed with a SAS host bus adapter.
Onboard mini-SAS ports
Two onboard mini Serial Attached SCSI (SAS) ports provide point-to-point 6Gb/s data (or 12Gb/s
depending on the model) transmission to other storage devices.
SAS Host Bus Adapter (HBA)
In addition to the above external Serial Attached SCSI (SAS) host attachment port built into the Storage
Controller, a pre-installed SAS HBA provides two additional mini-SAS ports for direct attachment to the
expansion units. The SAS HBA supports either 12Gb/s or 6Gb/s transmission speed depending on the
models. (ES1640dc v2 comes with 12Gb/s SAS HBA whereas ES1640dc comes with 6Gb/s SAS HBA.)
Battery Backup Units (BBU)
The battery is 10.8V 2200mAH.
The cache of QES NAS Storage is protected by a battery against power loss. The BBU provides power to
Battery-Backed Write Cache. The battery provides power if the data in the cache needs to be written to
the mSATA memory card if power is disrupted. In the instance when only one BBU fails, the working BBU
will protect the operation of write cache on both Storage Controllers. If both BBU fail at the same time,
the system will switch to write-through cache mode. You can schedule the BBU learning cycle in the QES;
for more information, please refer to the software user manual.
10GbE networking
4 x SFP+ (Intel® XL710-AM1) for Model ES1640dc v2 or 2 x RJ45 (Intel® X540-BT2) for Model ES1640dc
The ES NAS series is architected and validated with Intel® Xeon® processor E5 v2. The Ethernet ports
based on the Intel XL710 or X540 Ethernet controller implement hardware optimizations and off-loads
for exceptional performance. The network configuration of the QES supports Jumbo frame, port
trunking and VLAN settings for you to optimize performance and security in an IP SAN environment.
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