On Fri, 12 Mar 2010 10:40:58 +0000 John Robinson <john.robinson@xxxxxxxxxxxxxxxx> wrote: > On 12/03/2010 03:39, Patrick J. LoPresti wrote: > > From reading the documentation and source code, I gather "mdadm > > --grow" is not supported for RAID-0 devices. > > > > In my application, I am using md RAID-0 to stripe among several > > (identical) hardware RAID-0 chassis. I would like to extend my setup > > by adding another chassis, but apparently, I cannot (?). > > If I remember correctly, there were patches posted to this list recently > to add support for reshaping RAID-0, and for migrating from RAID-0 to > other RAID levels, but I don't remember whether they've made it in to > the kernel/mdadm yet. I recommend a trawl through the last few months' > archives. I'll save you the effort. No they haven't. The current plan is to support reshaping RAID-0 but converting the RAID0 to a degraded RAID4, then reshaping it, then converting back. But the code isn't ready yet. 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