Read Position Command
162
T10000: Interface Reference Manual • January 2011
• E20425-01
■
Read Position Command
The Read Position command returns information about the current logical and
physical block address of the tape. This command returns 20 bytes of data
from the logical unit.
Note:
Block addresses are used with the Locate and Recover Buffered Data
commands.
Table 122. Read Position Command
Byte
Bit
7
6
5
4
3
2
1
0
0
Operation Code (34h)
1
Reserved TCLP
LONG
BT
2
thru
8
(MSB)
Reserved
(LSB)
9
PPI
Control Byte
Parameter
Value
TCLP:
Total Current Logical Position
0 = Return first and last block location
LONG:
Long Format
0 = Return 20 bytes of data
1 = Return 32 bytes of data
BT:
Block address Type
0 = SCSI logical block address
1 = Vendor specific (ignored)
PPI:
Physical Position Indicator
0 = Return read position data
1 = Return Physical Position Indicator data
Summary of Contents for Storage Tek T10000
Page 14: ...Tables xiv T10000 Interface Reference Manual January 2011 E20425 01...
Page 18: ...What s New xx T10000 Interface Reference Manual January 2011 E20425 01...
Page 82: ...Private Loop SCSI Target Discovery 64 T10000 Interface Reference Manual January 2011 E20425 01...
Page 286: ...Glossary 268 T10000 Interface Reference Manual January 2011 E20425 01...
