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SCSI Commands: 33BRECEIVE DIAGNOSTIC RESULTS
Page
150
Byte
Bits
7 6 5 4 3 2 1 0
6
Diagnostic Parameter
7
Diagnostic Parameter (LSB)
3.21.2.2
Field Descriptions – PCV not set
Field
Bytes
Description
Page
Code
0
Identifies the type of diagnostic page being returned.
Reserved
1
All reserved bits must be 0.
Page
Length
2-3
Indicates the number of bytes of data to be returned after this block.
Diagnostic
Parameter
4-7
The results of the SEND DIAGNOSTIC command test. A code of zero indicates
that the drive passed the test. A non-zero code indicates that the drive has
failed the test. The value returned corresponds to the Message Code described
in Appendix A.
3.21.3
RECEIVE DIAGNOSTIC RESULTS Returned data if PCV set, Page Code = 00h
When the Supported Diagnostic Page is requested. The following diagnostic page
will be returned.
Byte
Bits
7 6 5 4 3 2 1 0
0
Supported Diagnostic Page Code - 00h
1
Reserved – 00h
2
(MSB)
3
Page Length (03h)
(LSB)
4
Supported Diagnostic Page Code - 00h
5
Ring Buffer Memory Test Diagnostic Page Code – 80h
6
Parallel Protocol Parameters Diagnostic Page Code – 81h (parallel SCSI drives only)
3.21.4
Returned data if PCV set, Page Code = 81h
When the Parallel Protocol Parameters Diagnostic Page is requested. The following
diagnostic page will be returned. (Parallel SCSI drives only.)
Byte
Bits
7
6
5
4
3
2
1
0
0
Parallel Protocol Parameters Diagnostic Page Code – 81h
1
Reserved – 00h
2
(MSB)
3
Page Length (04h)
(LSB)
4
Transfer Period Factor
5
Reserved
6
Req/Ack Offset
7
Transfer Width Exponent
8
PCOMP_EN RTI RD_STRM
WR_FLOW
HOLD_MCS QAS_REQ DT_REQ
IU_REQ
Summary of Contents for LTO 4
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