Subject: Re: Extension of fsync_range() to permit forcing disk cache flushing
To: der Mouse <>
From: Charles M. Hannum <>
List: tech-kern
Date: 12/18/2004 06:47:38
On Saturday 18 December 2004 05:56, der Mouse wrote:
> Actually, I'm fairly sure I've heard of at least one disk drive that
> uses the spindle motor as a generator to power the electronics long
> enough to avoid problems like partially written sectors on power fail.

Drive manufacturers experimented with that for a while, but it never worked 
reliably, and it's not implemented at all in any current drives.  (It can't 
be, for various reasons.)