On Wed, 16 Feb 2011 12:20:32 -0500 Joe Landman <joe.landman@xxxxxxxxx> wrote: > On 02/16/2011 05:27 AM, NeilBrown wrote: > > > > I all, > > I wrote this today and posted it at > > http://neil.brown.name/blog/20110216044002 > > > > I thought it might be worth posting it here too... > > Another request would be an incremental on-demand build of the RAID. > That is, when we set up a RAID6, that it only computes the blocks as > they are allocated and used. This helps with things like thin > provisioning on remote target devices (among other nice things). > That is exactly what the non-sync bitmap is supposed to do. On the first write to a region that is marked as not-in-sync, a resync for just that region is triggered. Thanks, NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html