Our preliminary performance tests proved that we could use the standard Intel NASPT templates for benchmarking. We used WD2002FYPS HDDs. You can see the results in the diagram.
The peak read and write speed are 100 and 80 MB/s. The external disk is comparable in performance to the dual-disk RAID1. Compared to other NASes with similar hardware, the Sentinel DX400 is somewhat slower than average.
It must be noted that these are synthetic benchmarks that refer to specific file reading and writing scenarios. Backup copying may work differently, for example. When creating a copy of a client's system disk, the integrated backup service worked with a speed of about 13 MB/s (20 minutes to create a copy of 15 GB of data).