Is this the crux of the problem? http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6424510
'For usb devices, the driver currently ignores DKIOCFLUSHWRITECACHE. This can cause catastrophic data corruption in the event of power loss, even for filesystems like ZFS that are designed to survive it. Dropping a flush-cache command is just as bad as dropping a write. It violates the interface that software relies on to use the device.' -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
