Hitachi HUS154530VLF400 User Manual

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification

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The REQUEST SENSE command requests the drive to transfer sense data.

If REQUEST SENSE command with an invalid LUN is received, the drive returns Good status and reports a sense key of Ille-
gal Request and an additional sense code of Logical Unit Not Supported.

If the drive has no sense data available to return, it shall return a sense key of No Sense and an additional sense code of No 
Additional Sense Information.

Separate sense data is maintained by the device for each Initiator. Therefore, there is no requirement for an Initiator to expedi-
tiously clear a Check Condition as this will not affect other initiators in a multi-Initiator system.

The drive will return the number of bytes in the allocation length or 32 bytes, whichever is less.