SCSI-2 Parity Errors

Kurt Chan kc at core.rose.hp.com
Wed Mar 15 11:36:30 PST 1995


| What should happen if parity errors are detected in COMMAND and/or DATA OUT
| phase? How should retries be performed in each of these situations and
| what should happen after retries have been exhausted?

Denis asks an interesting question.  What about the initiator response
if it detects bad parity on a DATA IN phase?

More specifically, what would happen if an error occurred on a command
sent with NACA=1, and a parity error occurred on DATA IN during the
subsequent Request Sense data transfer?  Would the sense data be lost
permanently regardless of whether ACA is in effect?

--
      Kurt Chan                          kc at core.rose.hp.com
      Hewlett-Packard                    Voice: 916-785-5621
      System Interconnect Lab            Fax:   916-785-2875




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