Synology DiskStation DS918+ 4-bay NAS Review

The AES-NI hardware encryption engine in the DS918+ does a very good job of negating the effects of dealing with data encrypted transfers. In a RAID 5 array there's only just under 10MB/s drop in performance when writing to the DS918+ and just 7.8MB/s are dropped when reading the data back.

In RAID 6 the write performance is a fractionally better at just 8.3MB/s dropped although while reading back the data, the performance drops some 22.3MB/s. This is a lot worse than the RAID 5 performance, although it's still pretty reasonable attempt at dealing with the effects of handling encrypted data.

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