Hp C737990900 User Manual Page 99

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Commands 99
Commands
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)
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