On Tue, Jul 22, 2003 at 10:58:44PM +0100, Alasdair G Kergon wrote: > On Tue, Jul 22, 2003 at 11:17:39PM +0200, Christophe Saout wrote: > > I just wrote a dm target uses a file as backend instead of another block > > device. > > Another suggestion: > > A target that always returns a block of zeros [or more generally, > some other repeating pattern e.g. if the read goes beyond the end > of your file - required to be multiple of sector size - it loops > round to the beginning; writes get dropped] Factoring out and tweaking the io error target mainly. > > So you can easily create, for example a /dev/zero-like block device of > arbitrary size, which might be useful for replacing a lost disk that > contained a stripe if you want to read off the data from the other > stripes at correct offsets. > > Alasdair > -- > agk@xxxxxxxxxxxxxx > > _______________________________________________ > > dm-devel@xxxxxxxxxxx > http://lists.sistina.com/mailman/listinfo/dm-devel -- Regards, Heinz -- The LVM Guy -- *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@xxxxxxxxxxx +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
