Read attribute 8ch, Read attribute 8ch 99, Pre-execution checks – HP C737990900 User Manual
Page 99: Command descriptor block

Commands 99
Co
m
m
an
ds
READ ATTRIBUTE
8Ch
The
READ ATTRIBUTE
command allows an application client to read attribute
values to MAM (Medium Auxiliary Memory) and also to discover what MAM
exists at the device server.
Pre-Execution Checks:
If the MAM is not accessible because there is no tape in the drive,
CHECK
CONDITION
is reported with a sense key of
NOT READY
and additional sense
of 3A00h (medium not present).
If the MAM is not accessible even though a tape is in the drive,
CHECK
CONDITION
is reported with a sense key of
MEDIUM ERROR
and additional
sense of 0410h (Media Auxiliary Memory is not accessible).
If the MAM has failed,
CHECK CONDITION
is reported with a sense key of
MEDIUM ERROR
and additional sense of 1112h (Media Auxiliary Memory
read error).
Command Descriptor Block:
Illegal Field
Fixed Bit
Flag Link
Bad LUN
Reservation
Deferred Error
Unit Attention
Media Access
Diagnostic Status
7
6
5
4
3
2
1
0
0
Operation Code (8Ch)
1
Reserved (0)
Service Action
2
(MSB)
Element Address (0)
3
(LSB)
4
Element Type Code (0)
5
Volume Number (0)
6
Reserved (0)
7
Partition Number (0)