Correct GEOM bio handling
Pawel Jakub Dawidek
pjd at FreeBSD.org
Fri Jun 11 07:35:06 GMT 2004
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!
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