On Tue, Apr 20, 2010 at 04:28:02PM +0000, A Darren Dunham wrote: > On Sat, Apr 17, 2010 at 09:03:33AM -0400, Edward Ned Harvey wrote: > > > "zfs list -t snapshot" lists in time order. > > > > Good to know. I'll keep that in mind for my "zfs send" scripts but it's not > > relevant for the case at hand. Because "zfs list" isn't available on the > > NFS client, where the users are trying to do this sort of stuff. > > I'll note for comparison that the Netapp shapshots do expose this in one > way. > > The actual snapshot directory access time is set to the time of the > snapshot. That makes it visible over NFS. Would be handy to do > something similar in ZFS.
The .zfs/snapshot directory is most certainly available over NFS. But note that .zfs does not appear in directory listings of dataset roots -- you have to actually refer to it: % ls -f|fgrep .zfs % ls -f .zfs . .. snapshot % ls .zfs/snapshot <snapshots> % nfsstat -m $PWD /net/.../pool/nico from ...:/pool/nico Flags: vers=4,proto=tcp,sec=sys,hard,intr,link,symlink,acl,mirrormount,rsize=1048576,wsize=1048576,retrans=5,timeo=600 Attr cache: acregmin=3,acregmax=60,acdirmin=30,acdirmax=60 % And you can even create, rename and destroy snapshots by creating, renaming and removing directories in .zfs/snapshot: % mkdir .zfs/snapshot/foo % mv .zfs/snapshot/foo .zfs/snapshot/bar % rmdir .zfs/snapshot/bar (All this also works locally, not just over ZFS.) Nico -- _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
