On Wed, Aug 06, 2014 at 11:43:37PM +1000, Joel Sing wrote: > On Wed, 6 Aug 2014, Raimo Niskanen wrote: > > On Wed, Aug 06, 2014 at 01:04:23AM +1000, Joel Sing wrote: > > > On Tue, 5 Aug 2014, Raimo Niskanen wrote: : : : : > > > > My guess is that if there has been a metadata format change in softraid > > > > it is a good strategy to rewrite that metadata when the disk gets > > > > "imported" so the new softraid code then will not have to account for > > > > multible metadata formats during normal operation. > > > > > > Migrations between versions are handled - if necessary, the metadata will > > > get updated when you attach the softraid volume. > > > > And that might mean that the volume becomes unusable in an older release... > > Correct? > > Correct. Once the metadata has been upgraded to the new version, the old > kernel will not be able to assemble it... but that's the price of progress.
No problem if it is a known behaviour. Maybe worth mentioning under CAVEATS in softraid(4)? -- / Raimo Niskanen, Erlang/OTP, Ericsson AB
