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] 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
