On Thu, 28 Aug 2008, Miles Nordin wrote:

> None of the decisions I described its making based on performance
> statistics are ``haywire''---I said it should funnel reads to the
> faster side of the mirror, and do this really quickly and
> unconservatively.  What's your issue with that?

>From what I understand, this is partially happening now based on 
average service time.  If I/O is backed up for a device, then the 
other device is preferred.  However it good to keep in mind that if 
data is never read, then it is never validated and corrected.  It is 
good for ZFS to read data sometimes.

Bob
======================================
Bob Friesenhahn
[EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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