Summary: Re: Spin down HDD after disk sync or before power off
des at des.no
Thu Oct 21 12:02:38 UTC 2010
Alexander Best <arundel at freebsd.org> writes:
> since there seems no way to distinguish between these two states in ATA(4) it's
> probably better to leave it as it is, since doing spin downs upon reboot might
> be even worse than not doing spindowns upon shutdown.
No. Where did you get that idea? To repeat what I've said before -
several times - in this thread, a modern disk drive can handle hundreds
of thousands of controlled unloads but only a few hundred emergency
unloads. Given the choice between "never spin down" and "always spin
down", the safe alternative is "always spin down".
Dag-Erling Smørgrav - des at des.no
More information about the freebsd-hackers