HP LTO 4 SAS, LTO 4 FC, LTO 4 SCSI manual 8h-BLANK CHECK, Action

Code	Meaning	Comments
74 03	Incorrect data encryption key	The drive read into a block of data which could not be
		decrypted with the current decryption key.
	Action:	1. Send a SECURITY PROTOCOL IN with the page set to
		Next Block Encryption Status to obtain information
		about the next block on tape.
		2. Send a SECURITY PROTOCOL OUT command with
		Decryption Mode set to Decrypt or Mixed, and the Key
		field specifying the correct decryption key
74 04	Cryptographic integrity	The next block failed the integrity validation process while
	validation failed	the drive was attempting to read it.
	Action:	Data may have been compromised, so the tape should not
		be trusted. Log the incident in the system log and notify the
		user.
74 05	Key-associated data	The Key-associated data descriptor values have changed
	descriptors changed	compared to the values in the last recorded read.
	Action:	None. The application may continue reading but it is
		advisable to send a SECURITY PROTOCOL IN command with
		the page set to Next Block Encryption Status to find out
		information about the next block on tape. The application
		may decide to change its own security parameters.

8h—BLANK CHECK

Code	Meaning		Comments
00 05	End of Data (EOD)		A READ or SPACE command terminated early because it
	detected		encountered EOD.
		Action:	1.	Terminate the current I/O and return the appropriate
				error to the calling application indicating that EOD
				has been encountered.
			2.	Send a console message saying that EOD has been
				encountered.
			3.	Recovery depends on the calling application and
				what was expected.

74 Sense keys and codes

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