Mike Gerdts wrote: > On 5/30/07, Darren J Moffat <Darren.Moffat at sun.com> wrote: >> I think "we" need to do something about this. CacheFS is a great >> technology for mobile users since it provides away to keep the same home >> directory on your laptop and on the network. > > (zones-discuss bcc'd to raise awareness but to avoid too much cross > posting) > > If there is the possibility to get it to work within zones at the same > time, this would be quite desirable. This is particularly true for > when we get to a point that zone roots are supported on NFS. > (http://mail.opensolaris.org/pipermail/zones-discuss/2007-April/003829.html)
CacheFS and zones is a bigger issue than this. In fact when we had the internal zones hackathon I actually used cachefs to partially break out of a zone (if I'd had more time I would have been able to complete the break out). It is for this reason that cachefs is explicitly marked as unsafe for Zones, not because of NFS being unsafe for the zone root. This is something that is very much worth considering for the future, because what makes it unsafe is the way that cachefs does some things related to file system operations "locally". I agree that cachefs with a zone root on NFS sounds very nice though. I think though that the bigger initial issues are having NFS rooted zones. -- Darren J Moffat
