> guess I'm stuck in the Dark Ages; I'm astonished.  Does that
mean you don't even bother to define page data sets.  In defense
of my naivete, we run so many test systems under VM that I
believe paging is commonplace.

No, you still have to define page datasets.
We just find them very inactive.

Before we went to 64-bit, we found we had no activity.
With 64-bit you get 2-3 I/O's per second per page dsn.
The ASM always checks its back-end.
With XSTOR, that was the back-end.
Now it's AUX-Stor.

We have to ensure we have a high enough Virtual:Real ratio, but we are not 
paging.

In that environment VIO is better than DASD I/O.

-
-teD

I’m an enthusiastic proselytiser of the universal panacea I believe in!

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