How to correctly remove a LUN from ESXi (or how to avoid All Paths Down APD)

In order to correctly remove a LUN from ESXi certain steps must be taken before unplugging the storage device merrily from ESXi if you wish to avoid the dreaded All Paths Down issue.   All Paths Down (APD) is when an ESXi server has lost all access to active paths (usually multipathed) storage device. The ESXi server continues to try and access the storage however and this is where the Read More…