[OpenIndiana-discuss] ZFS with 5 SAS best config
jason at broken.net
Thu Jul 21 17:13:46 UTC 2011
> Hi, I'm configuring a machine with 5 SAS disks dedicated to data.
> I was thinking to make a raidz2 pool on these 5 disks.
> What is the best option?
> What if I want to do it 4 disks + 1 for spare?
It is not clear to me what your requirements are.
if you need speed and redundancy, use mirrors.
If you need maximum storage use raidz
If you need more redundancy while maximizing storage than use raidz2
If you want more redundancy than raidz2 use a raidz3
If you want maximum redundancy use a 5-way mirror on five controllers ;-)
Your choice should be driven by performance and storage requirements. My
personal belief is unless the data is cold/archived/etc, the only proper
choice is mirrors.
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