Re:Ultra-high-density hard drives made with graphene store t...
by gruez on Sunday June 06, 2021 @08:54AM
(#27412830)
>Nevertheless, when a single HDD contains around 10^14 bits, even a 10^-14 per year probability of a bit flipping at ambient temperature may cause one corrupt file per year of storage per HDD
Hard drives add ECC info to each sector to prevent random bitflips from corrupting data[1]. Also IME actual rates of data corruption is far lower than 1 bit per year. This is on a filesystem with checksums, so any corruption would be easily detected.
Hard drives add ECC info to each sector to prevent random bitflips from corrupting data[1]. Also IME actual rates of data corruption is far lower than 1 bit per year. This is on a filesystem with checksums, so any corruption would be easily detected.
[1] https://en.wikipedia.org/wiki/File:Advanced_format_(4Kib)_HD...