So to my mind, the downside of ZFS flush disable is..... Data on disk may not be as current in the unlikely event of power outage. In point of fact MOST filesystem do not operate in journalled data mode anyhow and most people just don't realize this fact. The default for Linux EXT filesystems with journalling is just to ensure metadata integrity, and few people set data journalling because it costs performance. However you set it, ZFS is not going to come up with an fsck prompt resulting in hours of single-user downtime. Which is what really matters the most eh? ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
