Hot-swap SATA and atacontrol

[sthaug at nethelp.no]

> More seriously, I don't see the point in using sync(8) three times
> consecutively, except that's an indirect method to wait for the disk
> buffers to be flushed before powering down.  Please, correct me if I'm
> wrong.

Also, with softupdates you are *not* necessarily certain that all buffers
have been flushed after three sync's.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no