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 is identified by its SSD classification and vFlash configuration association, not by a Status of 'off'.

A Status value of 'off' in the esxcli storage core device list output specifically signals a Permanent Device Loss (PDL) condition, meaning the storage array has returned SCSI sense data indicating the LUN is permanently inaccessible and ESXi has stopped issuing I/O to the device.

A Solid State Device would be identified by an 'Is SSD: true' field in the output; no such field appears here, and the mpx naming convention does not indicate SSD status.

An All Paths Down (APD) condition is a transient unknown-loss state where the array has not confirmed permanent loss; APD does not produce a Status of 'off' and is tracked separately from PDL by the Native Multipath Plugin.