At 02:12 PM 6/1/2013, Matthew Goff wrote:
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?
I'm running copies=1 with two drives in a mirror.
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
da0a ONLINE 0 0 0
da1 ONLINE 0 0 0
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
Yes, but you're already way past my experience here. With four drives
you have a lot more options!
about ZFS really has me wanting to migrate to it and learn FreeBSD
Me too. That recent fbsd wiki article has me pondering how difficult
it would be to build a fbsd/zfs image and get it booting at prgmr.
--
newell N5TNL
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