To:       John Lohmeyer                          X3T9.2/87-178
          Chairman, X359.2

From:     Robert Snively
          Adaptec
          580 Cottonwood
          Milpitas, CA 95037

Date:     September 30, 1987

Subject:  Clarification of reset operation.

Section  5.2.2.1  of  the SCSI-2  draft  document  X3T9.2/86-109, 
Revision  2  dated August 1,  1987 indicates that the Hard  RESET 
alternative  will  establish all SCSI operating  modes  at  their 
default  conditions.   I  believe that this paragraph  should  be 
changed to read as follows:

5.2.2.1.  "Hard" RESET Alternative

SCSI  devices that implement the "hard" RESET  alternative,  upon 
detection of the RESET condition, shall:

     (1)  Clear all uncompleted commands
     (2)  Release all SCSI device reservations
     (3)   Return  any  SCSI  device  operating  modes  to  their 
     appropriate initial conditions,  similar to those conditions 
     that  would  be found after a normal  power-on-reset.   MODE 
     SELECT  conditions  shall  be restored to their  last  saved 
     values if saved values have been established.   MODE  SELECT 
     conditions  for  which  no values have been  saved  will  be 
     returned to their default values.
     (4)  UNIT ATTENTION condition shall be set (See 6.1.3)

Thank you for your consideration of this proposal.





R. Snively