Bob Friesenhahn wrote:
On Thu, 19 Mar 2009, Harry Putnam wrote:
I've created a zpool in raidz1 configuration with:
zpool create zbk raidz1 c3d0 c4d0 c4d1
This is not a very useful configuration. With this number of disks,
it is best to use two of them to build a mirror, and save the other
disk for something else (e.g. to build a mirrored root pool). Mirrors
perform better, are more fault tolerant, and are easier to administer.
With five disks, raidz1 becomes useful.
+1
also remember that you can add mirrors later. For best data availability,
start with 2 mirrored disks, each split in half. As your data requirements
grow, add mirrored halves. For diversity, make each side (half) of the
mirror be on different disks.
-- richard
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