I'm a fan of FreeNAS for storage at home. While you don't get the "learn FreeBSD" aspects, it is really easy to use, and for storage generally just works.
raidz2 works, and should mitigate the risks of losing the array during rebuilding if you have to replace a drive. I've never been concerned about copies=2 - out of curiosity, why is that a concern? And if you have a reasonably fast cpu, consider enabling compression on some volumes (lzjb if fast). DI don't bother with it on media-heavy volumes, however, although it might help if you have lots of RAW pictures. On Sat, Jun 1, 2013 at 12:12 PM, Matthew Goff <[email protected]> wrote: > > 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 >
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