> 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.

I've heard a lot about FreeNAS but the box I'm looking to plonk the
drives into is a bit more multi-function that "only" storage. I use it
as a proxy-bridge and do some hobby development on it; nothing heavy,
though, but more than "just storage" really. It's been Debian Linux
for over a decade, but with the state of ZFS on Linux...I'm willing to
take the leap into the BSD realm to get a stable and up-to-date kernel
level ZFS.

> 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.

I read an article on RAID and bit rot once (not this specific one, but
it covers things nicely) which scared me a bit thinking that my data
could very unbeknownst to me be sliently corrupted and useless. From
my (very cursory) understanding copies=2 allows ZFS to checksum your
files and replace them transparently if one is corrupted; aka the bit
rot protector.

http://blog.greenclouddatacenter.com/2011/12/13/r-a-i-d-is-b-a-d/

All the tinkering in the VM so far has been with lzjb compression,
too, FWIW. I found the script at the below URL which I tweaked a bit
to setup a raidz2 pool over 4 drives instead of only installing
everything onto a single drive and FreeBSD booted and ran fine so far.

https://calomel.org/zfs_freebsd_root_install.html
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