Intel® Virtual RAID on CPU (Intel® VROC) Showing "Unknown" Disk in the Intel® VROC Graphical User Interface (GUI)

Intel® VROC is showing an Unknown disk and the RAID 1 volume status is degraded.

The Intel® VROC log shows the information below:

Disk on Controller Unknown, Port 1
Status: Missing
Type: Unknown disk
Location type: Internal
Usage: Array disk
Size: 0 GB
System disk: No
Disk data cache: Disabled
Command queuing: None
Model:
Serial number: XXXXXXXXXXXXXX:0
SCSI device ID: 255
Firmware:
Physical sector size: 00 Bytes
Logical sector size: 00 Bytes

When a disk is displayed as unknown in the Intel® VROC GUI and/or Intel® VROC logs, it is most likely because the drive has failed. If this drive was a member of a RAID volume, the RAID volume may report the status of Degraded.

In such scenarios, the recommended action to recover the RAID volume is to replace the failed drive (reported as unknown) and rebuild the RAID volume.

Ensure to follow proper procedures for replacing the drive to avoid data loss.