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Long Block Form ID
7
6
BOP
EOP
0
1
3
(MSB)
4
7
(MSB)
8
15
16
(MSB)
23
24
(MSB)
31
Returned data fields:
MPU
Mark Position Unknown
0
0
LONU
Partition Number This will always be zero because Ultrium drives do not support multiple partitions.
Block Number
The number of logical blocks between BOP (beginning of partition) and the current
logical position. Filemarks count as one logical block each.
File Number
The number of filemarks between BOP and the current logical position.
The number of setmarks between BOP and the current logical position.
Set Number
5
4
Reserved (0)
Reserved (0)
Partition Number (0)
Block Number
File Number
Set Number(0)
The File Number and Set Number fields are valid.
The Partition Number and Block Number are valid.
3
2
1
MPU
LONU (0)
Reserved (0)
READ POSITION 34h 129
0
(LSB)
(LSB)
(LSB)
(LSB)
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