ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
SCSI Interface
3-69
Element Address
This field indicates the address of the element being reported by
that element descriptor.
Access
An access bit value of one indicates that access to the element by a
medium transport element is allowed.
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 either the
Element Contents Unknown condition (ASC=80 ASCQ=22),
Cleaning Cartridge Installed (ASC=30 ASCQ=03) or Operation
Medium Removal Requested (ASC=5A ASCQ=01).
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.
9
SValid
Invert
(0)
Reserved
(00h)
10
Source Storage Element Address
11
12
-
47
Primary Volume Tag Information (if present)
48
-
51
Reserved
(00000000h)
52
Vendor Unique
(0000h)
53
Bit/Byte
7
6
5
4
3
2
1
0