
LOG SENSE
7. ATAPI Packet Command Specification
SONY AIT-2 Turbo drive SDX-570V series Ver.1.0
7-17
7.6.7.
Tape Capacity Log Page
The tape Capacity Log Page is used to indicate the approximate capacity of the tape currently being used. The PC
field of the LOG SENSE command is ignored for this field.
When the AIT bit is set to ZERO in Mode Sense Page 31h, the 36 bytes of the log page shall be returned.
When the AIT bit is set to ONE, the 1028 bytes of the log page shall be returned.
The 36 bytes of the log page have the following format.
Table 7-22: LOG PAGE Tape Capacity (31h)
Bit
Byte
7 6 5 4 3 2 1 0
0
Page Code (31h)
1
Reserved
2
(MSB)
3
Page Length (0020h when AIT bit=0
0400h when AIT bit=1))
(LSB)
4
(MSB)
5
Parameter Code
(LSB)
6
0 (DU)
1 (DS)
0 (TSD)
0 (ETC)
0 (TMC)
Reserved
0 (LP)
7
Parameter Length (04h)
8
(MSB)
11
Parameter Value
(LSB)
Tape Capacity Log Page Parameters:
Code Value: When AIT bit is set to ZERO in Mode Sense Page 31h
0001
Remaining capacity, partition 0 (kilobytes)
0002
Remaining capacity, partition 1 (kilobytes), For a single partition tape, it will be ZERO.
0003
Maximum capacity, partition 0 (kilobytes)
0004
Maximum capacity, partition 1 (kilobytes). For a single partition tape, it will be ZERO.
Code Value: When AIT bit is set to ONE in Mode Sense Page 31h
0001
Remaining capacity, partition 0 (kilobytes)
0002
Remaining capacity, partition 1 (kilobytes)
0003
Maximum capacity, partition 0 (kilobytes)
0004
Maximum capacity, partition 1 (kilobytes)
0005
Remaining capacity, partition 2 (kilobytes)
0006
Remaining capacity, partition 3 (kilobytes)
0007
Maximum capacity, partition 2 (kilobytes)
0008
Maximum capacity, partition 3 (kilobytes)
.
.
.
007D
Remaining capacity, partition 62 (kilobytes)
007E
Remaining capacity, partition 63 (kilobytes)
007F
Maximum capacity, partition 62 (kilobytes)
0080
Maximum capacity, partition 63 (kilobytes)