Exabyte EXB-8205 Instruções de Operação descarregar pdf (Página 403)

100

101

Message Processing in Data Out Phase (Information

Commands)

Figure D-8 shows how messages are processed during the Data Out

phase for commands other than WRITE (for example, MODE

SELECT).

Parity Error in Data Out Phase (Information Command)

When parity checking is enabled and the CTS detects a parity error in

the data sent after the MODE SELECT CDB, it goes to the Message In

phase and sends a Restore Pointers message. The initiator must

restore the pointer to the start of the data. The CTS then goes to the

Data Out phase and requests the data again.

The initiator should count the Restore Pointers messages received

during the Data Out phase to qualify the communication. If the count

exceeds some threshold, the initiator should clear the CTS from the

busbydoingoneofthefollowing:

Sending the Abort message

Performing a SCSI bus reset

Sending the Bus Device Reset message

May 1994 EXB-8205 and EXB-8505

(Standard and XL)

D-17

Appendix D SCSI Bus Message Processing and Error Recovery

1 2 ... 398 399 400 401 402 403 404 405 406 407 408 ... 445 446

Comentários a estes Manuais

Sem comentários

Exabyte EXB-8205 Instruções de Operação Página 403

Comentários a estes Manuais