QNAP TVS-872N 8-bay NAS Review

Intel’s NASPT (NAS Performance Toolkit ) is a benchmark tool designed to enable direct measurement of home network-attached storage (NAS) performance. NASPT uses a set of real-world workload traces (high definition video playback and recording, video rendering/content creation and office productivity) gathered from typical digital home applications to emulate the behaviour of an actual application.

We’ve used some of the video and office apps results to highlight a NAS device’s performance.
4x HD Playback
This trace is built from four copies of the Video Playback test with around 11% sequential accesses.
HD Video Record
Trace writes a 720p MPEG-2 video file to the NAS. The single 1.6GB file is written sequentially using 256kB accesses.
HD Playback and Record
Tests the NAS with simultaneous reads and writes of a 1GB HD Video file in the 720p format.
Content Creation
This trace simulates the creation of a video file using both video and photo editing software using a mix of file types and sizes. 90% of the operations are writes to the NAS with around 40% of these being sequential.
Office Productivity
A trace of typical workday operations. 2.8GB of data made up of 600 files of varying lengths is divided equally between read and writes. 80% of the accesses are sequential.
Photo Album
This simulates the opening and viewing of 169 photos (approx 1.2GB). It tests how the NAS deals with a multitude of small files.

In the three Intel NASPT Video tests used, the fastest performance, 507MB/s, came from the drives set up in a RAID 50 array during the HD Playback and Record trace run. With a 1GbE connection, the performance across the arrays is very consistent throughout.

In the Office Productivity part of the NASPT Office tests the results of the two connection speeds closed significantly, with only a 37MB difference between the fastest bandwidth (RAID 60, 5GbE) result of 107MB/s and the slowest overall (RAID 5, 1GbE), 70MB/s.

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