There are a few things you need to do. 1) unbind all luns and destroy all Raid Groups on that DAE. Don't forget Hot Spares. 2) remove the DAE but don't break the backend chain to the remaining DAE's. Hopefully this DAE is the last one on the loop.      Now the DAE is removed but Unisphere will report it missing. 3) point browser to /setup and also one to /setup 4) retart the Management Server on both SP's at aboout the same time. This will only affect managent and not affect I/O. The Management Servers will restart in a couple of minutes. This should clear Unisphere from reporting the DAE missing.
Hi All,  I have a few older DAEs that I would like to remove from my CX4-480.  Is this as simple as powering down the DAE and unplugging them or do I need to unregister them somehow from USM?  These DAEs are at the end of a BUS.  Thanks in Advance.
Removing DAE