{
{ CML$DISK_PATH_USAGE_DATA
{
{
{  PURPOSE:
{     The purpose of this statistic is to record the amount of work
{ performed by a particular channel/controller combination.  This
{ information is used by maintenance personnel to measure the failure
{ rate per amount of service performed.
{
{ FREQUENCY: Every half-hour.
{
{ CONTENT:
{    The  descriptive-data portion of this statistic contains:
{
{  For $7154 and $7155_1x subsystems:
{    '<mf>.<iou>.<pp>.<channel>.<controller>'
{
{  For $10395_11 and $FA7B4_d subsystems:
{    '<mf>.<iou>.<pp>.<channel>.<controller>'
{
{  For $7165_2x subsystems:
{    '<mf>.<iou>.<pp>.<channel>.<sd>'
{
{  For $887 subsystems:
{    '<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 the string 'CPPn'
{        and 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 the string 'CHn', 'CCHn', or 'CCHnp',
{        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
{        (or control module) whose work is being reported.
{
{      where <sd> is the element name of the Storage Director
{        used in the failing request.
{
{      where  <unit> is the element name of the disk storage
{        device used in the failing request.
{
{    The  counter-value portion of this statistic contains:
{
{    1.  Total number of MAUs processed (written plus read) for this
{        disk channel/controller combination since the system was
{        last initialized.
{    2.  Total number of i/o requests processed (written plus read)
{        for this disk channel/controller combination since the
{        system was last initialized.
{

  CONST
    cml$disk_path_usage_data = cmc$min_ecc + 4000;

*copyc cmc$condition_limits
