Timeline for Magnetic exposure to floppy disk damages file system and requires complete reformat?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Apr 12 at 21:21 | comment | added | supercat | @Sparkette: Modern hard drives have a mechanism that sets mechanical position by varying the amount of current in a coil. It would be impractical to establish a fixed relationship been coil current and head position that wouldn't vary unacceptably with temperature. Instead, disks have factory-written markers that report the head position, and adjust the coil current until the head is in the right place. Writing the markers requires equipment which is much more finely calibrated than anything in a consumer-grade hard drive. | |
| Mar 14, 2021 at 4:44 | comment | added | Sparkette | Why don't hard drives provide any way of restoring that operational data without special equipment, say, through a "low level format" command that can be sent from a PC? Would it actually add a non-negligible amount of technical complexity, or is it only because they'll sell more hard drives if people replace rather than repair them? | |
| Jan 16, 2018 at 7:35 | review | First posts | |||
| Jan 16, 2018 at 7:41 | |||||
| Jan 16, 2018 at 7:30 | history | answered | Anonymous | CC BY-SA 3.0 |