Send Diagnostic Command; Table 3-170 Send Diagnostic Command - Oracle StorageTek T10000 Reference Manual

Send Diagnostic Command

The Send Diagnostic command provides a self-test that verifies the operation of the
device. Any buffered write data and filemarks are written on the tape before this
operation starts.

TABLE 3-170 Send Diagnostic Command

Byte 7
0
1
2
3 (MSB)
thru
4
5 Force Dump
Parameter
PF: Page Formatted
SelfTest: Self Test
DevOfl: Device Offline
UnitOfl: Unit Offline
Parameter List Length:
Force Dump: Force dump
August 2016
6 5
Operation Code (1Dh)
Reserved
Parameter List Length
Value
0 = Parameter data sent is not page formatted
1 = Parameter data sent is page formatted
1 = Perform default self test
0 = Diagnostics will not affect all logical units
0 = Diagnostics will not affect media loaded on logical unit
Length in bytes of parameter data transferred to the drive.
11b = Force a dump
Note – The command returns Good status if the test runs without
errors, and Check Condition status if the test indicates a problem.
No parameter data is transferred when the Self Test option is set.
Note – In Force Dump mode, the drive will activate Tape Alert
Flag 0x3A after the next IPL as a result of the force dump. This
allows testing of the TA Flag: Firmware Failure.
Bit
4 3
PF RSVD SelfTest
Reserved
Control Byte
Send Diagnostic Command
2 1 0
DevOfl UnitOfl
(LSB)
Commands 225