Toshiba N300 18TB NAS Hard Drives Use FC-MAMR

[Eric Smith]

The Toshiba N300 18TB NAS hard drive utilizes FC-MAMR to get higher density. We also found a consistent and worrying spec

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[niekbergboer]

The 1e-14 UBER does not sit terribly well with me; these disks contain ~1.5e+14 bits, which means 1 bit per drive. This is a problem when using these as single drives.

That said, using these with redundancy with bit-rot aware storage systems such as ZFS should be rather safe; the probability of hitting a flipped bit in the same block of two drives simultaneously is rather low.

 

[i386]

The 1e-14 UBER does not sit terribly well with me; these disks contain ~1.5e+14 bits, which means 1 bit per drive.

I remember reading articles like "why raid 5/6 will stop working in [year x|year y]" and getting worried.
10+ years later my experience and the fact that facebook, netflix and other hyperscalers never confirmed this make me believe that these numbers are incorrectly interpreted and don't mean what people think it means