On Mon, Sep 07, 2009 at 09:58:19AM -0700, Richard Elling wrote: > I only know of "hole punching" in the context of networking. ZFS doesn't > do networking, so the pedantic answer is no.
But a VDEV may be an iSCSI device, thus there can be networking below ZFS. For some iSCSI targets (including ZVOL-based ones) a hole punchin operation can be very useful since it explicitly tells the backend that some contiguous block of space can be released for allocation to others. Nico -- _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
