When a SCSI SES controller is interrogated for the status of a SES element, the response includes a 4-bit SCSI element status code. The list of valid codes is:
- 0h - unsupported - status detection is not implemented for this element
- 1h - OK - element is installed and no error conditions are known
- 2h - critical - critical condition is detected
- 3h - noncritical (warning) - noncritical condition is detected
- 4h - unrecoverable - unrecoverable condition is detected
- 5h - not installed - this element is not installed in the enclosure
- 6h - unknown - sensor has failed or element status is not available
- 7h - not available - element installed, no known errors, but the element has not been set into operation
- 8h-Fh - reserved
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