lkml.org 
[lkml]   [2001]   [Dec]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Journaling pointless with today's hard disks?
On Tue, 27 Nov 2001, Pavel Machek wrote:

> > Note, the specifications say that the write cache setting is ignored
> > when the drive runs out of spare blocks for reassignment after defects
> > (so that the drive can return the error code right away when it cannot
> > guarantee the write actually goes to disk).
>
> They should turn off write-back after number-of-spare-block < cache-size,
> otherwise they are not safe.

I don't know exactly what they're doing, but they also need to safeguard
against defective spare blocks, so number-of-space-blocks < cache-size
is not sufficient.
-
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 13:18    [W:0.077 / U:7.356 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site