Quantum 10K II - Manual (Page 224)

SCSI Description
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–157
5.29 RECEIVE DIAGNOSTIC RESULTS Command (1Ch)
The RECEIVE DIAGNOSTIC RESULTS command fetches the results of the last
SEND DIAGNOSTIC command sent to the drive. The drives support the diagnostic
pages listed in Table 5-74.
Table 5–74 Diagnostic Pages Supported by The Drives
Page Code Description Size In Bytes
00h Supported Diagnostic Pages 6
40h Translate Address Page (SEND DIAG) 14
40h Translate Address Page (RECEIVE DIAG) 14 or more
The RECEIVE DIAGNOSTIC RESULTS Command Descriptor Block is shown in
Figure 5-75; the data fields are described in Table 5-75.
To receive one or both of the two diagnostic pages that are available, the initiator
first sends the desired page code(s) to the drive using a SEND DIAGNOSTICS
command. The SEND DIAGNOSTICS command tells the drive which page it should
return in response to the next RECEIVE DIAGNOSTICS RESULTS command. The
page specified in the most recent SEND DIAGNOSTICS command is always the
page returned in response to the RECEIVE DIAGNOSTICS RESULTS command.
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (1Ch)
1 Reserved PCV
2 Page Code Value
3 - 4 Allocation Length
5 Reserved Control
Figure 5–75 RECEIVE DIAGNOSTIC RESULTS Command Descriptor Block
— Data Format