SCSI Verification Tests
             ******************************************

  This is a preliminary program distributed for review and comment. It should
not be represented as any "official" NBS test of SCSI conformance.


  The SCSI Verification Tests are C language programs which work with the
Adaptec SDS-1 SCSI Development System, Revision A. They are invoked by the
batch file ssdv.bat. The seperate programs are:

  NAME                                  TESTS

begin.c               Before testing commands, this program allows the
                      operator to set some initialization information and
                      tailor the testing function. Then the system sends
                      back some target parameters to the operator.

arbitr.c              Tests the ARBITRATION function for Direct-Access
                      and/or Sequential-Access Devices.

tuready.c             Tests the TEST UNIT READY command for Direct-Access
                      Device. (Note: Operator action is required to make
                      the unit not ready. The best way to do this depends
                      upon the device itself. Turning off power to the
                      controller, however, won't work. Removing the power
                      cable to the device may work, or removing the media
                      may work.)

mread.c               Tests the Mandatory READ command for Direct-Access
                      Devices.

mwrite.c              Tests the Mandatory WRITE command for Direct-Access
                      Devices.

eread.c               Tests the Extended READ command for Direct-Access
                      Devices.

ewrite.c              Tests the Extended WRITE command for Direct-Access
                      Devices.

sense.c               Tests the REQUEST SENSE command for Direct-Access
                      Devices.

vverify.c             Tests the VERIFY command for Direct-Access Devices.

inquiry.c             Tests the INQUIRY command for Direct-Access Devices.

reserve.c             Tests the RESERVE and RELEASE command for Direct-Access
                      Devices.

readcapa.c            Tests the READ CAPACITY command for Direct-Access
                      Devices.

mreads.c              Tests Mandatory READ command for Sequential-Access
                      Devices.

  The final products of SCSI STANDARD VERIFICATION are a couple of reports:
a Test Result Report and a Test Procedure Report. To get the reports, you
must use two batch files: ssdv.bat and tp.bat.
  To generate the Test Result Report, enter:
            C>ssdv
  While executing, the screen will show the execution sequence of this batch
file. After it has completed(when the DOS prompt appears), the Test Result
Report can be printed out to the printer:
            C>print ssdv.tr
  Then to generate Test Procedure Report, enter:
            C>tp ssdv
  After it has completed, print out the Test Procedure Report by entering:
            C>print ssdv.tp

NOTE:
       1: These tests do not test every possible command, feature or
          combination of features. The tests basically assume a Direct Access
          Device which implements the Parity and Arbitration options and the
          Extended Command Set. Parity checking itself is not tested. A basic
          test of RESERVE and RELEASE is included, however many options, such
          as Extent Reservation and Queued Reservations are not tested. These
          are conformance tests, not performance tests, and all tests are
          based upon some requirements of X3.131-1986. Each program begins
          with on explaination of the specific requirements of X3.131-1986 to
          be tested. A partial test of Sequential Access Device is included;
          we expect to extend this in the future.
       2: We have included both of the source programs and the executable
          programs. You can directly execute these programs or assemble
          these source programs and then execute them. In addition, we have
          included a Test Data Report(ssdv.tr) and a Test Procedure Report
          (ssdv.tp) which we have run here at NBS. You should delete these
          files before you test a new device.
       3: It will take a long time to test READ CAPACITY command and
          Mandatory READ command for Sequential-Access Device.
       4: After you interrupt executing test programs, you must delete *.tmp,
          *.liu, ssdv.tr or ssdv.tp before you restart the test programs.
       5: If you have some suggestion for these tests or find something
          wrong in the programs, we'd very much like to know about it.
          Please make your comments or suggested corrections on a floppy
          and mail this to us. If you do make corrections to a program please
          be careful to clearly warn those corrections with appropriate
          comments. Our address is:

                 William E. Burr
                 National Bureau of Standards
                 Building 225, Room A216
                 Gaithersburg, MD 20899