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Seagate IronWolf vs Toshiba N300 4TB

There's little in it on paper. The Seagate IronWolf is the quieter drive and the other one's quicker, so it comes down to where the box lives.

Compared on 7 specs from the makers' datasheets, and a group only gets a winner when the gap between the two is clear-cut.

Side by side

SpecSeagate IronWolfToshiba N300
Reliability Backblaze doesn't run either
Backblaze failure rateLifetime, 95% interval in brackets No data No data
Warranty and workload Level
Warranty 3 years 3 years
Workload ratingReads and writes a year 180 TB/yr 180 TB/yr
Where it fits Level
Line NAS NAS
Rated NAS bays Up to 8 Up to 8
Recording CMR CMR
Noise and speed A trade-off
Spindle speedFaster reads quicker, slower is quieter 5,400 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.