error when deleting DR group.

[ALMGRP]

Hi,
We have 2 EVA5000 VCS code 3110 which have a number of DR groups. When I try to delete a dr group I get the following error:
" Operation failed!
error on remote storage system.: nsa object failed."

The only error on either array is the occupancy alarm.

I'm using Cv 9.1.

Anyone come across this before or any idea what the error means?

[T Bridges]

Check and make sure you don't have the destination disk presented.