3. Suppose during an asynchronous parallel SCSI data transfer someone removes a floppy disk from the drive that is the intended target of the transfer. How would the initiator know that the error has occurred during these phases:

• Bus-free

• Status

• Selection

• Message

• Command

• Reselection

• Data

a) During which of the phases is it possible that good data may be written to the floppy if the data transfer is a “write” operation?

b) If the transfer is a “read,” at which point would the system have good data in the buffer? Would the system ever acknowledge this data?