Flash storage topics

At present, (a) user-space can not reason about the state of the disk, and (b) a "sync" is effectively a Denial-of-Service attack on all the other users of the system (and yourself).

If I can guarantee that certain writes hit the disk in a fixed order, then I can reason about the state of the disk, and write a robust app.

The problem is that POSIX explicitly only applies to a properly functioning system - it explicitly disclaims all liability if the system malfunctions, and things like databases need to be able to reason about a malfunctioning system.

Cheers,
Wol