--As of November 21, 2011 9:09:45 PM -0500, APseudoUtopia is alleged to
have said:
Ok, thank you for the advice. It's on a quad-core xeon, so, in
reference to your suggestion, I'll turn on compression for the entire
pool. I did read that having swap in zfs may cause problems, so I'll
be sticking to the traditional freebsd-swap partition.
Another quick question about swap: If I have 4 drives, with 512MB
swap, the system uses all 4 swap partitions, correct? So it's not like
it'd be going to waste? I'd have a total of 2 GB swap?
--As for the rest, it is mine.
I'll admit I don't know. As as I said: I put it on ZFS. ;) It works well
enough, as long as I make sure it never runs low on RAM. (Basically, I
threw money at the problem.)
There are a few cases where compression isn't a win - if you have a section
that you know will have mostly non-compressible data it's worth turning
off. (I also haven't actually tried it on *root*, just in case... Not
that I'd expect problems, but I didn't see the need to take the chance.)
But most of my stuff is compressed.
Note that changing compression settings doesn't affect anything *currently*
on the disk; just new writes.
Daniel T. Staal
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