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SCSI Description
Maxtor Atlas 10K III 5-161
The SEND DIAGNOSTIC command sends a diagnostic page to the drive. Refer to
the RECEIVE DIAGNOSTICS RESULTS command for a description of the
diagnostic pages and the use of the diagnostic commands. The Supported Diagnostic
Page List (Table 5-199) and Translate Page List (Table 5-200) can be sent with this
command. Table 5-197 shows the SEND DIAGNOSTIC CDB data format and
Table 5-198 shows the field descriptions.
SEND DIAGNOSTIC Command Descriptor Block-Data Format
SEND DIAGNOSTIC Command-Field Descriptions
0 Operation Code (1Dh)
1 Function PF Rsvd
Self
Test
DevOnl UnitOfl
2 Reserved
3 - 4 Parameter List Length
5 Control
Function
When the SelfTest bit is set to one, the Function code field is 000b. When the Self-
Test bit is cleared to zero, the content of the Function code field is specified as fol-
lows:
000b: Value to be used when the SelfTest bit is set to one or if the SEND DIAGNOS-
TIC command is not invoking one of the other self-test function codes (for example,
Translate Address page)
001b: Background short self-test. The device server will start its short self-test rou-
tine in the background mode.
010b: Background extended self test. The device server will start its extended self-
test routine in the background mode.
011b: Reserved
100b: Abort background self-test. Abort the current self-test running in background
mode. This value is only valid if a previous SEND DIAGNOSTIC command specified
a Background self-test function and that function has not completed. If either of
these conditions is not true, then the device server will respond by returning a
CHECK CONDITION with a sense key of NOT READY and an additional sense code
of LOGICAL UNIT NOT READY, SELF-TEST IN PROGRESS.
101b: Foreground short self-test. The device server will start its short self-test rou-
tine in the foreground mode
110b: Foreground extended self-test. The device server will start its extended self-
test routine in the foreground mode
111b: Reserved
PF
Page Format. When the PF bit is 1, the parameters that follow conform to the Sup-
ported Diagnostic Page List (Table 5-199) or the Translate Address Page
(Table 5-200).
SelfTest is ignored when PF = 1.
The PF bit must be 1 if Parameter List Length is not 0.