Synology DiskStation DS916+ 4-Bay NAS Review

To test the DiskStation 916+ we used four WD 6TB Red drives (WD60EFRX, 5,400rpm class, 64MB cache), built into all the standard RAID arrays supported by the device; RAID 0,1, 5, 6 and 10 using the ex4 file system and then tested. As the DS916+ supports both ex4 and Btrfs file systems we also built the disks in a RAID 5 array using Btrfs to see if there is any performance advantage or indeed disadvantage from using this file system.

Software:
Atto Disk Benchmark.
CrystalMark 3.0.3.
IOMeter.
Intel NASPT.

To test real life file/folder performance we use a number of different file/folder combinations to test the read and write performance of the NAS device.  Using the FastCopy utility to get an MB/s and time taken for each transfer, the data is written from and read back to a 240GB SSD.

60GB Steam folder: 29,521 files.
50GB Files folder: 28,523  files.
12GB Movie folder: 24 files – mix of Blu-ray and 4K files.
10GB Photo folder: 621 files – mix of .png, .raw and .jpeg images.
10GB Audio folder: 1,483 files – mix of .mp3 and .flac files.

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