>So the general consensus seems to be that mirroring page packs is a bad idea 
>resulting in a performance hit.  Does anyone have any #'s on how much of a hit 
>this is?

If it's synchronous double the I/O response.
If it's also to another site --GDPS-- add in the speed of light differential.

Also, at a second site, none of the data will be used.
It will be the virtual/real storage map of the second site.

-
Too busy driving to stop for gas!

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