lkml.org 
[lkml]   [2001]   [Nov]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Journaling pointless with today's hard disks?
On Thu, 29 Nov 2001, Frank de Lange wrote:

> Another interesting possibility would be to use the momentum of the spinning
> platters and motor assembly to power the drive electronics, simply by using the
> motor as a generator. When power fails during a write, use the current
> generated by the motor to finish the write.

Non-trivial because you'd have to adjust filters and code rate to the
actual platter speed (which goes down as energy is drained and moved
elsewhere) and design that beast to actually be a generator.

Probably too much development effort for a situation which should not
happen too often.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:13    [W:0.058 / U:1.256 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site