You specify the mirroring configuration. The top-level "vdevs" are implicitly striped. So if you, for instance, request something like
zpool create mirror AA BA mirror AB BB then you will have a pool consisting of a stripe of two mirrors. Each mirror will have one copy of its data at each location. Hence if site B goes down, you'll lose BA and BB, and each mirror will transition to a degraded state. So the answer to your first question is yes, with this configuration you can be sure that no data will reside solely on LUNs at site B. On your second question, I don't believe there is work currently being done on shared pools, but I'll let the ZFS team clarify the road map. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
