>>Seems to me if I remove the extend pool then SMS would have issues 
accessing datasets that have extended to the >>extend pool.

>SMS does not access files.
>It just determines where they go.
>Once allocated (and catalogued), the file is fully accessible.

I've only read about the extended storage groups but haven't actually 
worked with them yet but consider this - a dataset spans both storage 
groups and now needs to add a volume. In this case, if the dataset has 
extended into the extend storage group, would the new volume not have to 
come from that storage group?  And if it's been removed as an extend 
storage group, would SMS still be able to add a volume from that storage 
group?

dd keller 
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