Dell PowerEdge RAID Controller S140 User’s Guide

A physical disk is not visible in the BIOS Configuration Utility or is offline

1. Check that the cables are properly connected.
2. Check that the physical disk is installed properly in the system’s backplane.
3. Check the system’s backplane for damage.
4. Reinstall the physical disk and ensure that it is seated correctly in the system’s backplane.
5. Check if the Physical Disk might be a SAS drive.
6. Perform a Rescan, to perform either of the following:
   1. Update the status of storage devices attached to the controller.
   2. Fix an error caused by deleting or initializing a virtual disk.