Correct GEOM bio handling

[Pawel Jakub Dawidek]

On Thu, Jun 10, 2004 at 10:13:08PM +0200, Poul-Henning Kamp wrote:
+> Some implementations use compressed bitmaps, so that they know that
+> bits where a normal write happened can be skipped by the rebuilder.

I'm using bitmaps to do sychronization in geom_mirror.
It works quite ok.

+> Some even use "parasitic rebuild" where normal reads are written
+> to the bad plex as well (if not already up to date) in order to
+> save on the I/O operations.

Nice idea, I need to put it into geom_mirror:)

-- 
Pawel Jakub Dawidek                       http://www.FreeBSD.org
pjd at FreeBSD.org                           http://garage.freebsd.pl
FreeBSD committer                         Am I Evil? Yes, I Am!
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-geom/attachments/20040611/d8bbaf82/attachment.bin