When all logical paths of a virtual LUN become faulty (All Paths Down, or APD for short), run the esxcli set apdtopdl -m mode -t timeout command on UltraPath to convert the states of SCSI devices running on the LUN from APD to Permanent Device Loss (PDL). For details, see section A.2.43 "Converting APD to PDL" in the OceanStor UltraPath for vSphere User Guide.

