shrink or delete storage pool

First identify who is using which dvols

Whereisfs or nas_disk/fs/.. are your friends

See if you can free up complete dvols

Use the forum search for details - this has been discussed here a couple of times

I did not need to "shrink" the storage pool.  All that was necessary (after determining that the volumes were not used) was to run:  nas_disk -delete dvol

Then on the Clariion side I was able to move the LUNs to a different storage group.

I did have a support chat active when I did this, as I wanted to make sure it was done correctly.  I specifically asked about the -perm switch, and was told it was not needed.

I wish EMC support read from the same playbook as you guys.

But, thanks for your help.  I appreciate these forums.

you always want to use -perm when you do that.