Read T10 PI (16) Command
144 T10000: Interface Reference Manual August 2016
Read T10 PI (16) Command
The Read T10 PI (16) command (see TABLE 3-94) requests that the device server
transfer the next record or records from tape to the host. After successful completion
of a read operation, the tape is positioned after the last block read. Each block
transferred includes user data and protection information.
The Read T10 PI (16) command shall only be processed if T10 PI Protection Method is
enabled and the LBP_R control bit is set (see Control Data Protection Mode Page).
TABLE 3-94 Read T10 PI (16) Command
Byte
Bit
76543210
0 Operation Code (98h)
1 GRDC APPTC REFTC Reserved SILI FIXED
2 (MSB)
EXPECTED INITIAL REFERENCE TAG
(LSB)
3
4
5
6 (MSB) EXPECTED APPLICATION TAG
7 (LSB)
8 (MSB) APPLICATION TAG MASK
9 (LSB)
10 (MSB
TRANSFER LENGTH
(LSB)
11
12
13
14 Reserved
15 CONTROL
Parameter Value
GRDC: Guard Check
1 = Check the Guard field of the PI.
0 = Do not check the Guard field of the PI.
APPTC: Application Tag Check
1 = Check the Application Tag field of the PI.
0 = Do not check the Application Tag field of the PI.
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