On Fri, Dec 26, 2008 at 02:17:08PM -0200, Alberto Bertogli wrote: > > At this moment I'm trying to keep it simple, so I plan to batch two for > each sector written to the device: one for the metadata and one for the > data. > I think I can pretty much guarantee that your performance will be so horrible that it won't be worth using. > > Yes, this is necessary because in a production system you need to be > > able to identify the external journal by UUID, and the ext2/3/4 > > superblock makes it easy to add a label, UUID, et. al. It also > > significantly lowers the chance that an external journal will get > > misidentified as some other filesystem based on the data stored in the > > journal. > > Yes, it makes sense. I've reserved the first sector for that purpose. Why not just use the ext3/4 external journal format? - Ted -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
