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Toshiba MG08 vs WD Ultrastar DC HC550 16TB
Get the WD Ultrastar DC HC550. It has the better Backblaze record, with its whole interval below the other's.
Compared on 7 specs from the makers' datasheets and Backblaze's failure data, and a group only gets a winner when the gap between the two is clear-cut.
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Side by side
SpecToshiba MG08WD Ultrastar DC HC550
Reliability WD Ultrastar DC HC550 wins
Backblaze failure rateLifetime, 95% interval in brackets 1.23% (1.10%–1.37%) 0.54% (0.49%–0.59%) (better)
Warranty and workload Level
Warranty 5 years 5 years
Workload ratingReads and writes a year 550 TB/yr 550 TB/yr
Where it fits Level
Line Data-centre Data-centre
Rated NAS bays Not stated Not stated
Recording CMR CMR
Noise and speed Level
Spindle speedFaster reads quicker, slower is quieter 7,200 rpm 7,200 rpm
The Backblaze figures are lifetime annualised failure rates (Source: Backblaze), and we only call reliability when the two 95% intervals don't overlap.