On Sat, February 5, 2011 11:54, Gaikokujin Kyofusho wrote:
> Thank you kebabber. I will try out indiana and virtual box to play around
> with it a bit.
>
> Just to make sure I understand your example, if I say had a 4x2tb drives,
> 2x750gb, 2x1.5tb drives etc then i could make 3 groups (perhaps 1 raidz1 +
> 1 mirrored + 1 mirrored), in terms of accessing them would they just be
> mounted like 3 partitions or could it all be accessed like one big
> partition?

A ZFS pool can contain many vdevs; you could put the three groups you
describe into one pool, and then assign one (or more) file-systems to that
pool.  Putting them all in one pool seems to me the natural way to handle
it; they're all similar levels of redundancy.  It's more flexible to have
everything in one pool, generally.

(You could also make separate pools; my experience, for what it's worth,
argues for making pools based on redundancy and performance (and only
worry about BIG differences), and assign file-systems to pools based on
needs for redundancy and performance.  And for my home system I just have
one big data pool, currently consisting of 1x1TB, 2x400GB, 2x400GB, plus
1TB hot spare.)

Or you could stick strictly to mirrors; 4 pools 2x2T, 2x2T, 2x750G,
2x1.5T.  Mirrors are more flexible, give you more redundancy, and are much
easier to work with.
-- 
David Dyer-Bennet, d...@dd-b.net; http://dd-b.net/
Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/
Photos: http://dd-b.net/photography/gallery/
Dragaera: http://dragaera.info

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