This troubleshooting article describes the DRIVE NOTICE error message describing a media error has been encountered
Log messages or alerts with the following message: "Drive NOTICE: Media Error Encountered "
Causes include defect blocks and when a disk remap/repair is attempted on defect block with reserved space which can happen multiple times until the disk finally fails.
The RAID controller will mark the drive as defective if no reserved space is left.
A Hot Spare Disk (HSD) will jump in if it is defined.