The routine mrd_request_sense(3mrd) never returns MRD_STATUS_
SUCCESS. If the os_status isn't the operating system specific
code that forces a Reqeust Sense command or MRD_CHECK_SENSE,
mrd_map_os_error(3mrd), is used to map the os_status to an
MRD status code. Otherwise, a Request Sense (or equivalent) is
performed and the result mapped to an MRD status code with mrd_
scsi_decode(3mrd).
Additional Information:
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