On Sun, 15 Nov 2009, Joe Auty wrote:

I've see several comparisons to existing RAID solutions, but I'm not finding 
whether the more
disks you add, the more I/O you can get, unless I'm missing something?

Perhaps that is because "it depends" and you may or may not get "more I/O", depending on what "more I/O" means to you.

In some cases the I/O rates depend on decision-making in the zfs code. For example, while huge sequential I/O rates may be available, the zfs code might decide to ramp-up the prefetch rate over time so that you only see the huge rate for very large files. The algorithms and decisions in zfs tend to change over time based on bug reports and the zfs implementor's accumlated experience.

Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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