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4.2.1
Termination Status Analysis and Error Recovery Methods
Fig. 4.3 shows a model of the INIT's general processing flow from issuing of the command
until reception of the termination status. In the figure, a "BUS FREE Error" is the case where
the SCSI bus entered the BUS FREE phase at a point not intended by the INIT (at a point
when entering the BUS FREE phase was not permitted by the SCSI bus protocol
specification), and normally, it is an error detected by the host system's (INIT's) SCSI
controller's hardware or firmware.
Command issue
END
status received ?
BUS FREE
error ?
No
Timeout ?
See item (3).
4 - 14
Yes
Yes
No
Yes
See item (4).
Figure 4.3
Analysis of the Termination Status
C141-E039-01EN
Yes
GOOD
No
Yes
BUSY
No
Yes
QUEUE
FULL
No
Yes
PRESERVATION
CONFLICT
No
Issue of REQUEST
SENSE command
To Section 4.3.2
Normal end
To item (1)
To item (1)
To item (2)
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