X3T9.2/91-210
                   SCSI-2 CAM Change Proposal

Title:    Freezing of LUN Queues following a SCSI Bus Reset
Author:   Al Youngwerth, Extended Systems
Date:     January 8, 1992

References

1.    X3T9.2-90-186, SCSI-2 Common Access Method - Transport
      and SCSI Interface Module, rev 2.4, I. Dal Allan (Ed.)

Discussion

Section 6.4.3.3 of CAM rev 2.4, Error conditions and Queues within
the Subsystem states, "The SIM shall place its internal queue for
a LUN into the frozen state for any status other than Request
Completed Without Error and Request in Progress."  However, section
6.5, SIM Handling of SCSI Resets does not specify that the SIM
shall freeze its LUN Queues in the event of a SCSI Bus Reset.

Change Proposal

Insert the following step as b), resequence the current steps b)
through e) as c) through f).

b) Place its internal LUN queues for all LUNs on the reset bus
into the frozen state.