I'm not sure what you're trying to accomplish. I am looking for something that will reproduce the functionality of DRBD on linux. AVS does the replication, but falls apart beyond that because there's no easy way to reverse direction. AVS is practically programmed to make that difficult.
Another option, which was I thought you were referring to, is to use ZFS in combination with iSCSI. In this scheme, one would export a ZFS redundant pool via iSCSI as a target to itself and then use ZFS to combine that exported pool and a similarly exported pool from the secondary node to make a ZFS mirror. If you are using RAID-Z2 on the iSCSI pools then you'd have RAID-Z2 + RAID1. However, there's presently a big limitation with any approach involving iSCSI because there's a 180 second timeout when an iSCSI device fails to respond, http://bugs.opensolaris.org/view_bug.do?bug_id=6497777. -- This message posted from opensolaris.org
