I perform RAID synchronization operations during which I measure the time the NAS needs to complete these tasks—average power consumption for these rebuild and synchronization periods is also measured. In NAS servers with four bays or more, I rebuild and synchronize RAID 1, RAID 5, and RAID 6 arrays, while in smaller two-bay NAS servers, I am confined to a RAID 1 array. The Bitmap option is disabled in NAS servers that support it to produce comparable results because it speeds up RAID rebuild times.
Asustor Drivestor 4 AS1104T
Operation
Time
AVG Power Consumption
RAID 1 Sync
0:20:40
8.45 W
RAID 1 Rebuild
0:21:06
9.40 W
RAID 5 Sync
1:15:00
13.10 W
RAID 5 Rebuild
0:42:12
11.22 W
RAID 6 Sync
0:41:24
10.14 W
RAID 6 Rebuild
0:56:52
10.77 W
Power consumption during RAID synchronization and rebuild operations is low.