| The errant command which accidentally adds a vdev could just as easily | be a command which scrambles up or erases all of the data.
The difference between a mistaken command that accidentally adds a vdev and the other ways to loose your data with ZFS is that the 'add a vdev' accident is only one omitted word different from a command that you use routinely. This is a very close distance, especially for fallible humans. ('zpool add ... mirror A B' and 'zpool add ... spare A'; omit either 'mirror' or 'spare' by accident and boom.) - cks _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss