HP Surestore 15 Slot with DLT4000 Digital Linear Tape SCSI-2 Drive and SCSI-3 - Page 114
Send Diagnostic Command (1DH), PF, SelfTst (Self Test), DevOfL (Device Offline)
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Library SCSI-3 Command Set Send Diagnostic Command (1DH) Table 2-49 Send Diagnostic Command (1DH) Causes the library to perform certain predefined diagnostic test/exercise routines. The Request Sense (Table 2-5 on page 2-8) and the Receive Diagnostic Results (Table 2-46 on page 2-64) commands can be used to get the results of a test. Send Diagnostic Command CDB Byte 7 6 5 4 3 2 1 0 0 Operation Code (1DH) 1 Reserved (0) PF (0) Rsvd SelfTst DevOfL UnitOfl (0) 2 Reserved (0) 3 Parameter List Length (MSByte) 4 Parameter List Length (LSByte) 5 Control Byte (0) PF When set to 0, the Send Diagnostic Parameters are vendor specific. SelfTst (Self Test) When set to 1, the Power-on Selftest runs. This selftest is equivalent to running Test Sequence 1, the Power-on Sequence. The parameter list length must be 0. When set to 0, the diagnostic specified in the parameter list is run. DevOfL (Device Offline) Must be set to 1 for any test, other than the Selftest. 2- 70 Chapter 2
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