On Fri, Mar 16, 2012 at 3:06 PM, Brandon High <bh...@freaks.com> wrote: > On Fri, Mar 16, 2012 at 2:35 PM, Philip Brown <p...@bolthole.com> wrote: >> if there isnt a process visible doing this via ps, I'm wondering how >> one might check if a zfs filesystem or snapshot is rendered "busy" in >> this way, interfering with an unmount or destroy? >> >> I'm also wondering if this sort of thing can mean interference between >> some combination of multiple send/receives at the same time, on the >> same filesystem? > > Look at 'zfs hold', 'zfs holds', and 'zfs release'. Sends and receives > will place holds on snapshots to prevent them from being changed. >
yup, know about holds. wasnt those. The reason for my question is, I recently ran into a situation where there was a single orphaned zfs filesystem, no snapshots (therefore no holds), no subfilesystems, no clones... and as far as I'm aware, no send or receive active for it. There were a bunch before that time, but they had all completed, I believe. so I'm trying to figure out if there was any kind of left-over lock, and how I might see that. Is there some "zdb" magic? _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
