The ERRORS class displays a running count of the errors on each port along
  with the current number of reinitialization attempts remaining and the
  maximum number of times reinitialization can be attempted.

1  –  ERT_COUNT

   Number of port reinitialization attempts remaining.

2  –  ERT_MAX

   Total number of times a recovery from fatal port errors can be
   attempted by shutting down all virtual circuits and connections
   and reinitializing the port.

3  –  NUM_ERRORS

   Number of errors that have been logged on the port since the
   system was booted. This number includes errors encountered in
   reinitialization attempts as well as recoverable errors, such
   as virtual circuit failure. This is the same error count as
   that displayed by the DCL command SHOW DEVICE.