Mode Select Command; Table 3-47 Mode Select (10)-6 Byte Command; Table 3-48 Mode Select (10)-10 Byte Command - Oracle StorageTek T10000 Reference Manual

Mode Select Command

The Mode Select command specifies options and parameters for a device. StorageTek
recommends the host system perform a Mode Sense command before each Mode
Select command to determine the current settings and to avoid any unwanted
alterations to other Mode Select fields.
The Mode Sense command determines which fields can be changed by the Mode
Select command and what the default values are for these fields.
The tape drives support both 6- and 10-byte commands.
TABLE 3-47 Mode Select (10)—6 Byte Command
Byte 7
0
1
2 (MSB)
thru
3
4
5
TABLE 3-48 Mode Select (10)—10 Byte Command
Byte 7
0
1
2 (MSB)
thru
6
7 (MSB)
thru
8
9
Mode Select data consists of a header, an optional block descriptor, and optional page
formatted data:
August 2016
6 5
Operation Code (15h)
Reserved
Parameter List Length
6 5
Operation Code (55h)
Reserved
Parameter List Length
Bit
4 3
PF Reserved
Reserved
Control Byte
Bit
4 3
PF Reserved
Reserved
Control Byte
Mode Select Command
2 1 0
SP
2 1 0
SP
Commands 91
(LSB)
(LSB)
(LSB)