Dell EMC PowerVault MD 34XX/38XX Series Storage Arrays Administrator's Guide

The following describes the various states of the physical disk, which are recognized by the storage array and reported in the MD Storage Manager under the Hardware tab or in the Storage Array Profile on the Summary tab.

Table 1. Physical disk statesIf the status of the physical disk is optimal with assigned mode, then the physical disk in the indicated slot is configured as part of a disk group. If the status of the physical disk is optimal with unassigned mode, then the physical disk in the indicated slot is unused and available to be configured. If the status of the physical disk is optimal with hot spare standby mode, then the physical disk in the indicated slot is configured as a hot spare. If the status of the physical disk is optimal with hot spare in use mode, then the physical disk in the indicated slot is in use as a hot spare within a disk group. If the status of the physical disk is failed with either assigned, unassigned, hot spare in use, or hot spare standby mode, then the physical disk in the indicated slot has failed because of an unrecoverable error, an incorrect physical disk type or physical disk size, or by its operational state being set to failed. If the status of the physical disk is replaced with assigned mode, then the physical disk in the indicated slot has been replaced and is ready to be, or is actively being, configured into a disk group. If the status of the physical disk is pending offline with either assigned, unassigned, hot spare in use, or hot spare standby mode, then a Self-Monitoring Analysis and Reporting Technology (SMART) error has been detected on the physical disk in the indicated slot. If the status of the physical disk is offline with not applicable mode, then the physical disk has either been spun down or had a rebuild ended by user request. If the status of the physical disk is identify with either assigned, unassigned, hot spare in use, or hot spare standby mode, then the physical disk is being identified.

Status	Mode	Description
Optimal	Assigned	The physical disk in the indicated slot is configured as part of a disk group.
Optimal	Unassigned	The physical disk in the indicated slot is unused and available to be configured.
Optimal	Hot Spare Standby	The physical disk in the indicated slot is configured as a hot spare.
Optimal	Hot Spare in use	The physical disk in the indicated slot is in use as a hot spare within a disk group.
Failed	Assigned, Unassigned, Hot Spare in use, or Hot Spare Standby	The physical disk in the indicated slot has failed because of an unrecoverable error, an incorrect physical disk type or physical disk size, or by its operational state being set to failed.
Replaced	Assigned	The physical disk in the indicated slot has been replaced and is ready to be, or is actively being, configured into a disk group.
Pending Failure	Assigned, Unassigned, Hot Spare in use, or Hot Spare Standby	A Self-Monitoring Analysis and Reporting Technology (SMART) error has been detected on the physical disk in the indicated slot.
Offline	Not applicable	The physical disk has either been spun down or had a rebuild ended by user request.
Identify	Assigned, Unassigned, Hot Spare in use, or Hot Spare Standby	The physical disk is being identified.