Linked by Thom Holwerda on Wed 15th Jul 2009 21:38 UTC
It's time for another "OSNews asks" item. This time, I want to focus on something that I've been wanting to talk about with you all before, but never found the time for. The question is simple: which feature(s) from other operating systems would you like to see in your own main operating system?
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RE[2]: OpenSolaris desires
by Jondice on Thu 16th Jul 2009 18:18
in reply to "RE: OpenSolaris desires"
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2005-07-11
5)Ability to add new disks to a raidz pool.
What do you mean by this? One can add new vdevs into a raidz pool. One can even replace drives in a raidz vdev with larger ones, and have that space become available to the pool.
The only thing one can't do is to extend a raidz vdev (turn a 3-drive raidz vdev into a 4-drive raidz vdev). This is due to the dynamic block sizes and striping...you would have to re-write every block of data on the existing drives to spread it across the new drive.
But, since storage is pooled, you can just add more raidz vdevs into the pool to add storage space.