{
{ CML$CONNECTION_DISABLED
{
{
{ PURPOSE:
{    This statistic provides notification that a failure has been isolated
{ to either a controller or a unit and that NOS/VE has disabled the use of the
{ connection between two elements.
{
{    A disabled connection is reinstated when the state of either the upline
{ or the downline element in the connection is manually changed to ON, when the
{ UNSTEP_SYSTEM command is entered, or when NOS/VE is deadstarted.
{
{ FREQUENCY:
{    Whenever the system encounters during an I/O request a hardware failure
{    that prevents further use of the connection.
{
{ CONTENT:
{    The descriptive-data portion of this statistic contains:
{
{    '<failing_connection>,<failing_element>,<failing_path>*CONNECTION DISABLED'
{
{      where <failing_connection> is of the form:
{
{        <upline_element_name>.<downline_element_name>
{
{        where <upline_element_name> is either the name of a controller or
{        a channel.  If the latter, the string is of the form 'IOUx/CCHx'
{        or 'IOUx/CHx'.
{
{        where <downline_element_name> is the name of a controller or a unit.
{
{      where <failing_element> is the name of the element that the NOS/VE
{        driver diagnosed as the failing element.
{
{      where <failing_path> is of the form:
{
{        '<mf>.<iou>.<pp>.<channel>.[<controller>].<unit>'
{
{        where <mf> is the identification of the mainframe in the form
{          $SYSTEM_mmmm_ssss.  Where 'mmmm' is the model number of
{          Central Processor zero (CP0), e.g. 0990, and 'ssss' is the
{          serial number of that processor, e.g. 0104.
{
{        where  <iou>  is  the  string  'IOUn' where n is 0 or 1.
{          This identifies the IOU associated with the channel over
{          which the failure was reported.
{
{        where <pp> is either the string 'PPn' or 'CPPn' and where 'n'
{          is the decimal representation of the logical PP number used
{          to process the failing request.  Note that 'CPP' is the
{          designation given to the concurrent PPs in an I4 IOU.
{
{        where <channel> is either the string 'CHn' or 'CCHnp', or 'CCHn'
{          where 'n' is the decimal representation of the channel and
{          where 'p' is the channel port (A or B) through which the
{          disk device was accessed.  Note that 'CCH' is the
{          designation given to the concurrent channels in an I4 IOU.
{
{        where <controller> is the element name of the disk controller
{          used in the failing request, if applicable.  This is an optional
{          field due to the $887_1 product that has the controller embedded
{          in the unit.
{
{        where <unit> is the element name of the failing disk storage
{          device used in the failing request.
{
{        where CONNECTION DISABLED is a string constant used to help identify
{          this statistics in the engineering log.
{
{    The counter-value portion of this statistic is not defined.
{
{

  CONST
    cml$connection_disabled = cmc$min_ecc + 202;

*copyc cmc$condition_limits
