User`s guide

System Troubleshooting and Diagnostics
5.2 Product Fault Management and Symptom-Directed Diagnosis
5.2.9 VAXsimPLUS and System-Initiated Call Logging (SICL) Support
Symptom-Directed Diagnostic (SDD) toolkit support for KA52/53/54 kernels is
provided in version 2.0 of the toolkit. If version 2.0 is not available, you should
install the previous version, as it provides support for many existing options.
VAX 4000 systems use Symptom-Directed Diagnosis tools primarily for
notification. The VAX System Integrity Monitor Plus (VAXsimPLUS)
interactive reporting tool triggers notification for high-level events recorded in
SYSTAT and LOGGING REASON.
The VAXsimPLUS monitor simply parses for a handful of SYSTAT flags
and LOGGING reason codes. The VAXsimPLUS monitor display is updated
and triggering occurs if the threshold has been reached. Some flags have
a threshold of one; for example, SYSTAT <08> ERROR THRESHOLD
EXCEEDED will trigger VAXsimPLUS upon the first occurrence, since at
least three errors would have already occurred and been handled by the
OpenVMS operating system.
All lower level errors will ultimately set one of the conditions shown in
Table 5–2. VAXsimPLUS will examine the conditions within a 24-hour
period—thresholds are typically one or two flags or logging reason codes within
that period.
Table 5–2 lists the conditions that will trigger VAXsimPLUS notification and
updating. Figure 5–8 shows the flow for the VAXsimPLUS monitor trigger
(for decision blocks with only one branch, the alternative is treated as an
ignore condition). The entries ultimately are classified as either hard or soft.
Errors that require corrective maintenance are classified as hard; while errors
potentially requiring corrective maintenance are classified as soft.
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