On Sunday February 5, ritchiem@xxxxxxx wrote: > I can see what I did now. Very silly. > > I created a RAID 5 with 4 disks then went about hot adding disks. > Silly me thinking it would increase the active space. Of course with > the parity being shared through the active disks this doesn't makes > sense. > > I was wanting to define a systematic way that I could start with a > small number of disks and then expand the RAID as I needed more space > (and could afford more disks). > > Is raidreconf the only way for reconfiguring a live system? > raidreconf doesn't allow you to reconfigure a live system - only an inactive system. But for the moment, that is the only way, yes. In 2.6.17 or 2.6.18 it should be possible to restripe a raid5 to have a larger number of devices. This can happen while the array is in active use. The code is mostly written, and could be used today, but I don't recommend it on valuable data yet as there are known bugs. 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
