On Tue, Dec 27, 2011 at 2:20 PM, Frank Cusack <fr...@linetwo.net> wrote: > <http://sparcv9.blogspot.com/2011/12/solaris-11-illumos-and-source.html> > >> If I "upgrade" ZFS to use the new features in Solaris 11 I will be unable >> to import my pool using the free ZFS implementation that is available in >> illumos based distributions > > > Is that accurate? I understand if the S11 version is ahead of illumos, of > course I can't use the same pools in both places, but that is the same > problem as using an S11 pool on S10. The author is implying a much worse > situation, that there are zfs "tracks" in addition to versions and that S11 > is now on a different track and an S11 pool will not be usable elsewhere, > "ever". I hope it's just a misrepresentation.
Hard to say. Suppose Oracle releases no details on any additions to the on-disk ZFS format since build 147... then either the rest of the ZFS developer community forks for good, or they have to reverse engineer Oracle's additions. Even if Oracle does release details on their additions, what if the external ZFS developer community disagrees vehemently with any of those? And what if the open source community adds extensions that Oracle never adopts? A fork is not yet a reality, but IMO it sure looks likely. Of course, you can still manage to have pools that will work on all implementations -- until the day that implementations start removing older formats anyways, which not only could happen, but I think will happen, though probably not until S10 is EOLed, and in any case probably not for a few years yet, likely not even within the next half decade. It's hard to predict such things though, so take the above with some (or lots!) of salt. Nico -- _______________________________________________ zfs-discuss mailing list firstname.lastname@example.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss