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ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
3-52
SCSI Interface
Except
The Exception field is set to one when that element is in an
abnormal state. When the element is in a normal state, it is set to
zero. Further information on the abnormal state will be available in
the Additional Sense Code and Additional Sense Code Qualifier
fields in that element descriptor. See the Request Sense Command
for the meaning of the codes contained in the two Sense Code
fields.
Full
The Full field is set to one whenever the element contains a tape
cartridge. It is set to zero otherwise.
Additional Sense Code and Additional Sense Code Qualifier
These fields are only valid if the Exception field is set to one.
Currently the only valid values for these fields indicate the
Element Contents Unknown condition (ASC=80 ASCQ=22),
Cleaning Cartridge Installed (ASC=30 ASCQ=03) or any DLT drive
error (ASC=8D or ASC=F3).
SValid
The SValid bit is set to one if the information in the Source Storage
Element Address field is valid. If the information is unknown (due
to a door open or power on condition) the SValid bit is set to zero.
Invert
The invert field is not supported and is set to zero.
Source Storage Element Address
The Source Storage Element Address represents the address of the
last storage element which held the cartridge. The SValid field
indicates whether or not this information is valid.
Primary Volume Tag Information
If the Volume Tag information was requested in the command
block, the Primary Volume Tag Information field is included in the
element descriptor. See Table 30 for format.