Luca Berra <bluca@comedia.it> wrote: > On Thu, Oct 28, 2004 at 08:01:27AM +0200, Eric Monjoin wrote: > >md9 : active raid1 emcpowerd1[2] [dev e8:e1][0] > > 42829184 blocks [2/1] [U_] > > [>....................] recovery = 1.4% (630168/42829184) > >finish=68.1min speed=10315K/sec > this is a problem with linux md raid. it does not support fast resync > with a bitmap of changed sectors, there is a project to implement it, > but it is not yet in the standard kernel. > look on the linux-raid mailing list archives for something called 'fast > raid 1'. fr1.sf.net (also fr5.sf.net may be of interest). and http://www.it.uc3m.es/ptb/fr1 (yes, I am the author). Those are for 2.4 kernels. A version fo fr1 for 2.6 kernels with additional ondisk bitmaps has been done by Paul Clements, the linux nbd maintainer, and patches by him are around. I should look them up and merge the two .. bids accepted! > i do not believe you would have any advantage in stacking md above lvm > anyway. That is right. In fact it sounds downright risky to me. Peter _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
