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Seagate Exos X16 vs WD Red Pro 16TB
Get the WD Red Pro. It's confirmed CMR.
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
SpecSeagate Exos X16WD Red Pro
Reliability Only the Seagate Exos X16 is in Backblaze's data
Backblaze failure rateLifetime, 95% interval in brackets 0.68% (0.63%–0.72%) No data
Warranty and workload Level
Warranty 5 years 5 years
Workload ratingReads and writes a year 550 TB/yr 550 TB/yr
Where it fits WD Red Pro wins
Line Data-centre NAS Pro
Rated NAS bays Not stated Any number
Recording Not stated CMR (better)
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.