Write Command
234 T10000: Interface Reference Manual August 2016
The Write command transfers one or more blocks of data from the host to tape.
VERIFICATION LENGTH = Number of bytes or blocks to verify
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.
REFTC: Reference Tag Check
1 = Check the Reference Tag field of the PI.
0 = Do not check the Reference Tag field of the PI.
SILI: Suppress Illegal Length Indication
= 0 Check condition status is returned if the record length
does not match Transfer Length. ILI (Illegal Length Indication)
and Valid bits in sense data are set.
In variable block mode, the Information bytes are set to the
Transfer Length minus the actual record size.
In fixed block mode, Information bytes are set to the
Transfer Length minus the number of blocks transferred,
not including the incorrect length block.
= 1 Return Check Condition status only when the actual
record length is larger than transfer length, and the Mode
Sense block length field in not zero.
Note – This option is not allowed if the fixed bit is 1.
TABLE 3-176 Write Command
Byte
Bit
76543210
0 Operation Code (0Ah)
1 Reserved Fixed
2
thru
4
(MSB)
Transfer Length
(LSB)
5 Control Byte
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