QDA-A2AR | Hardware Spec

QDA-A2AR Specification

Use two 2.5-inch SATA drives in a single 3.5-inch SATA drive bay with RAID support for PC and NAS


Standard Warranty	1 year
Supported Drives	2 x 2.5" SATA 6Gbps HDD/SSD (up to 9.5 mm in height)
Host Interface	SATA 6Gbps
Supported Operating Systems	1. QTS 4.4.1 (or later) 2. Windows: Windows 7, 8.1, 10, Windows Server 2012 R2 3. Ubuntu
Dimensions (L x W x H)	138.2 × 101.6 × 25.9 mm
Weight	0.15 kg
RAID Support	RAID 0, 1
Note	The connected drive may not reach its optimal performance due to protocol translation and some overhead. All the drive data will be cleared upon drive initialization or RAID mode switching with the QDA-A2AR. Ensure that all data is backed up beforehand. Window and Linux PC supports all four modes mentioned above. QTS does not support Individual mode. It is recommended that only drives with identical model numbers and capacities are used to create a RAID 0/1 group because the total storage space will be equal to the size of the smallest drive. The SATA controller of the PC must support port multipliers to recognize two drives in the Individual mode configuration. Consult your system provider and install the latest drivers for your SATA controller. Installing a QNAP disk adapter in another QNAP disk adapter is not supported. (e.g. QDA-A2MAR cannot be installed in the QDA-A2AR.) TR-002/TR-004 RAID expansion enclosures do not support QDA-A2AR/QDA-A2MAR. QTS identifies the drives in a QDA-A2AR as a single volume. Installing two drives with a RAID 1 configuration for QDA-A2AR is required to use Qtier. If a QDA-A2AR drive fails and needs replaced: you must disable Qtier to make the QDA-A2AR drive data move to the NAS-based storage pool, and then replace the failed QDA-A2AR drive.
Architecture Diagram

Note: QNAP reserves the right to replace partial parts or accessories if the original is no longer available from its manufacturer/supplier. Any replacement would be fully tested and verified to meet strict compatibility and stability guidelines and will deliver identical performance to the original.
Product images are for illustrative purposes only and may differ from the actual product. Due to differences in monitors, colors of products may also appear different to those shown on the site.
Designs and specifications are subject to change without notice.

Minimum operating system requirements

QNAP NAS: QTS 4.4.1 and later
Windows: Windows 7 and later, Windows Server 2012 R2 and later
Linux

Software Utility Features

QNAP External RAID Manager

Overview device, disks, and RAID info and status
Support for disk’s S.M.A.R.T. monitoring
Desktop notification to inform abnormal status
RAID rebuild
RAID recovery
Firmware update
Notification for new version of firmware and application
System event logs for troubleshooting
Export event logs to .csv file

Note: Actual performance may vary depending on operating environment and other factors, such as RAID mode, RAID configuration, disk model and capacity.