HP LTO Ultrium 4 drives technical reference manual, volume 2: software integration 57
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Additional sense codes—actions to take
These tables provide information about sense data, so that software can know which
additional sense codes can be reported under which sense keys. It is important that the
operating system makes all Request Sense data available to applications and, in interpreted
form, to the end-user.
Actions are suggested for software to use when determining the recovery action for different
sense keys and additional sense code and qualifying codes (ASC/ASCQ).
It is strongly recommended that the operating system and/or application use the entire
ASC/ASCQ data to determine the appropriate recovery action.
The tables are in numerical order, not order of priority. That is, they do not suggest which sense
keys should be checked first, nor do they recommend priorities for the devices to report errors.
NOTE: When the sense, additional sense code and qualifying sense keys are listed, the
software may look at all three keys to determine action. The drive should use that exact
combination to report that particular error.
For example, a drive will report that it is not ready when there is no cartridge present by setting
the sense key to
NOT READY with additional sense of 0402h (LUN not ready, initializing
command required). No other combination of sense key and additional sense may be used to
report that particular condition.
Dh
VOLUME
OVERFLOW
Data could not be written because of a lack of remaining space on
the tape. See the
WRITE and WRITE FILEMARK commands. Recovery
from this depends on the device class and the operating system. It is
a “generic” sense key—the host should be able to recover from it
without knowing the additional sense code.
For additional sense codes, see “Dh—VOLUME OVERFLOW” on
page 76.
Console Message: Physical End-of-Tape reached, unable to fit
remaining information on tape
Code Sense Key Interpretation
