Hi Dan,
Let me see if I understood your problem correctly. You are creating a volume with name say vol1, then deleting the same and latter trying to create with same volume name vol1 right ?
DFM takes 1 hour before it can mark-delete an object in its database even after the object is deleted on the controller. This was done as a means to prevent snmp discrepancies or timeouts.
I suggest you modify your workflow to query the controller for unique names to recreate volumes instead of relying on OCUM as there is no way to fasten this process of mark-deletion.
Even though you can refresh the monitoring using dfm-api-refresh or dfm host discover you will still have to wait for 1 hour.
Regards
adai