On Fri, 6 Nov 2020, Harry Putnam wrote:
Now I would like to do some experimenting with some of the other
possible setups. I'm thinking maybe raidz2 or raidz3.
How much data do you have? For small amounts stick with mirrors.
Small potatoes.. maybe 4 TB total. things are complicated a bit by
the fact that my HP xw8600 is not capable of running 3 TB or larger
discs. And Is somewhat limited in ports, without some creative
cobbling.
This limitation likely only applies to boot disks which must be seen
and understood by the BIOS. The problem might be solved by adding
another disc controller which is either used for data storage (only
known/understood by Illumos) or another disc controller which is only
used when booting. The key thing is that the BIOS needs to see the
boot discs and Illumos needs to understand the actual size and
properties of the data store disks (without depending on the BIOS).
With only a small number of disks (and to aid human comprehension when
something goes wrong) I suggest using mirrors with a regular pool
'scrub' schedule. With more disks raidz2 starts making sense but
raidz2 is less flexible.
Bob
--
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt
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