I think you have to go to the original post to be able to do this. The same place where you clicked the helpful answer. If this dosent work let me know cause now I am curious.  Thanks!
On one of our celerras I found a couple of 8.43 GB disks that were not in use (d936 & d937) and ran nas_disk –delete d936 –perm (same for d937). I understand this deleted them from the celerra database.  I used nas_disk –l to see the disks before I did the delete. Looks like d936 was 24E hex on the symm and d937 was 24F hex on the symm. After I deleted these two disks they quit showing up in the nas_disk –l output.  Is there anything else I need to do on the celerra?  I see 24E and 24F mapped to FA4Ca and FA13Ca on the symm. I want to unmap them there now but want to be sure the celerra is really done with them before I do this.  When I do unmap them from the symm FAs don’t I have to change the emulation type associated with the devices?  set device 24E:24F emulation= ;      ?   before they can be used for something else?  Where are the emulation types defined? Is there an hp-ux emulation type?  Thanks!
releasing celerra disk back to dmx backend