> From: Michael Hase [mailto:mich...@edition-software.de]
> Sent: Monday, July 16, 2012 6:41 PM
> So only one thing left: mirror should read 2x

That is still weird - 
But all your numbers so far are coming from bonnie.  Why don't you do a test
like this?  (below)

Write a big file to mirror.  Reboot (or something) to clear cache.  Now time
read the file.
Sometimes you'll get a different result with dd versus cat.

> Could someone please send me some bonnie++ results for a 2 disk mirror or
> a 2x2 disk mirror pool with sata disks?

I don't have bonnie, but I have certainly confirmed mirror performance on
solaris before with sata disks.  I've generally done iozone, benchmarking
the N-way mirror, and the stripe-of-mirrors.  So I know the expectation in
this case is correct.

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