HP Q153090901 - Manual (Page 129)

READ POSITION 34h
C
omm
an
ds
129
Long Block Form ID
Returned data fields:
7 6 5 4 3 2 1 0
0 BOP EOP Reserved (0) MPU LONU (0) Reserved (0)
1
Reserved (0)
3
4
(MSB)
Partition Number (0)
7 (LSB)
8 (MSB)
Block Number
15 (LSB)
16 (MSB)
File Number
23 (LSB)
24 (MSB)
Set Number(0)
31 (LSB)
MPU Mark Position Unknown
0 The File Number and Set Number fields are valid.
LONU 0 The Partition Number and Block Number are valid.
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.
Set Number The number of setmarks between BOP and the current logical position.