RAID Operations
I perform RAID sync 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 sync 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.
Synology DS1520+ |
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Operation | Time | AVG Power Consumption |
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RAID 1 Sync | 0:33:00 | 16.90 W |
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RAID 1 Rebuild | 0:21:31 | 16.24 W |
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RAID 5 Sync | 0:53:59 | 23.45 W |
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RAID 5 Rebuild | 0:07:34 | 20.55 W |
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RAID 6 Sync | 1:35:41 | 21.38 W |
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RAID 6 Rebuild | 0:10:15 | 21.20W |
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Rebuild times are extremely short with the corresponding option in Storage Manager selected, especially in RAID 5 and 6.
RAID Sync Graphs
RAID Rebuild Graphs