Fujitsu MAN3184 Manual Do Utilizador
C141-E124-01EN
5 - 12
5.2
INIT Error Recovery Methods (Recommended)
When a single command or a series of linked commands are not terminated with a GOOD status or
TASK COMPLETE message reported, the INIT should execute error recovery processing
corresponding to the state in which the command was terminated. Here, the procedure for
analyzing the command execution termination state and recommended procedures for error
recovery processing executed by the INIT in accordance with the results are explained.
TASK COMPLETE message reported, the INIT should execute error recovery processing
corresponding to the state in which the command was terminated. Here, the procedure for
analyzing the command execution termination state and recommended procedures for error
recovery processing executed by the INIT in accordance with the results are explained.
5.2.1
Termination status analysis and error recovery methods
Figure 5.3 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.
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.