An administrator runs the command esxcli storage core device list and sees the following output: mpx.vmhba1:C0:T0:L0 Display Name: RAID 5 (mpx.vmhba1:C0:T0:L0) Has Settable Display Name: false SizE…

A device configured for vFlash Read Cache would be identified by its SSD classification and vFlash configuration metadata, not by a 'Status: off' value in the device list output.

The 'Status: off' field in the esxcli storage core device list output is the definitive indicator of a Permanent Device Loss (PDL) condition, where the storage array returns SCSI sense codes signaling the path is permanently gone and ESXi immediately halts I/O to that device rather than retrying.

A Solid State Device would be identified by 'Is SSD: true' in the device properties; 'Status: off' indicates a permanent loss condition, not the physical media type of the storage device.

An All Paths Down (APD) state occurs when all paths become inaccessible without a definitive SCSI loss signal from the array, resulting in a different status; PDL is specifically identified by the 'Status: off' output rather than the transient unavailability seen in APD.