> Why not spin up a test VM in virtualbox or whatever, attach a couple of > virtual disks as a mirror, and give it a try? Go ahead and use dd to corrupt > one of the mirrored disks, then watch as the zpool scrub finds and corrects > the errors. Take some snapshots and have zfs show you the differences. Maybe > clone a second VM and send/receive some snapshots between the two. I think > you'll be impressed.
I've actually spent the morning playing in a VM and trying to figure out what TYPE of ZFS pool(s) would be best. I've come to the conclusion that copies=2 is a necessity to take advantage of the self-healing with file checksums, but should I run this in mirror, raidz, raidz2...etc? Right now I'm in the middle of another re-install of FreeBSD 9.1 trying raidz2. If my thinking is correct, a 4x1TB raidz2 would leave me with 2TB of usable space and the capability of losing two drives at once. Setting the file copies to 2 in places I most care about (photos, videos; not ports or random downloads, etc) would then cut my 2TB down a bit further. Does this sound sane? Everything I've read about ZFS really has me wanting to migrate to it and learn FreeBSD some but I want to ensure I have a sane idea of what I plan to create with it. _______________________________________________ discuss mailing list [email protected] http://lists.prgmr.com/mailman/listinfo/discuss
