Comment by colanderman

> As long as other properties weren't violated (eg. ordering)

That is primarily what fsync is used to ensure. (SCSI provides other means of ensuring ordering, but AFAIK they're not widely implemented.)

EDIT: per your other reply, yes, it's possible the drives maintain ordering of FLUSHed writes, but not durability. I'm curious to see that tested as well. (Still an integrity issue for any system involving more than just one single drive though.)