HP LTO 4 SCSI, LTO 4 FC, LTO 4 SAS manual 0h-NO SENSE, Action

0h—NO SENSE

The following action applies to most additional sense codes in this group:

Action:

For all additional sense codes except 82 82h, the action of the software depends on the current I/O and what the operating system has been expecting. Recovery depends on the operating system. As a minimum, the software should pass an error to the calling application indicating the positional mark that has been encountered. The I/O can be retried if desired.

Code	Meaning	Comments
00 00	No additional sense	The drive has no additional sense information for the
		host. The flags in the sense data indicate the reason for
		failure.
	Action:	see above
00 01	Filemark detected	This indicates one of the following:
		• A READ or SPACE command was terminated early
		because a filemark was encountered.
		• Unsolicited Positional Sense has been set to indicate
		“at a filemark”.
		The Mark bit in the sense data will always be set.
	Action:	see above
00 02	End of Tape detected	A command completed early because End of Tape or the
		physical end of the tape was encountered.
		The EOM flag in the sense data will be set.
	Action:	see above
00 04	Beginning of Tape detected	BOT was encountered during a space command.
00 16	Operation in progress	The command is in progress and has not yet completed.
00 18	Erase operation in progress	This could be because another host initiated the
00 19	Locate operation in	command; or the command was sent in immediate
00 1A	progress	mode. The Sense Key Specific Value field in the sense
	Rewind operation in	data will give some indication of how far the operation
	progress	has progressed.
	Action:	Either wait for the command to complete, or poll again
		to see how it is progressing.
82 82	Drive requires cleaning	The drive has detected that the heads need to be
		cleaned to maintain good operation.
	Action:	Optionally, log the occurrence for information. It will not
		be considered an error and the software will continue.

58 Sense keys and codes

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