Monitoring Modes

LINC/MON has three basic types of operating mode, and provides four different types of monitoring information, as shown in the following table.

Mode

Information Available

Data Displayed

Monitor (transactions)

Statistics on transactions processed during the last period, or since start of transaction monitoring

  • Transactions processed by each subsystem over the last period

  • Transactions processed since start of monitoring

  • Average hourly transaction rate since start of monitoring

  • Peak hourly transaction rate since start of monitoring

Monitor (System Event)

Occurrence of System events such as:

  • BOJ (Beginning of Job)

  • EOJ (End of Job)

  • Use of Administration (colon) commands

  • TIME – Time event occurred

  • ACTION – Type of event

  • STATION – Initiating station

  • DESCRIPTION – Description of event

Viewing

View of a logical log file record. The content of a logical log record varies for different logical record types.

For each pivot number, all log record details, including any messages sent or received.

Inquiry

Names and details of Ispecs and attributes

  • Ispec listing

  • Attribute details for an Ispec

  • Attributes for an Ispec

  • Control file information

  • An analysis of log records using DMINQUIRY-like commands

Monitoring Transaction Throughput

When you are monitoring transaction throughput, live monitoring information is displayed on Page 1 of your terminal, giving you statistics for the transactions processed over the latest time period. This time period can be set when you initiate LINC/MON (Refer to Resetting Monitor Parameters).

The live monitoring information is displayed as a bar chart. If subsystems apply for your application, a separate bar is shown for each subsystem, as well as a bar giving the total for all subsystems.

Monitoring System Events

When you are monitoring System events, LINC/MON displays descriptive information in columns on Page 2 of your terminal. However, if you specify on initiation that no transactions are to be analyzed, System event information is displayed on Page 1.

Viewing Mode

In viewing mode, you might view any record in any available log file for your application, whether current or past. Analysis information about the control properties within each logical log record is also provided.

The log record heading information is displayed on Page 1. If log message text is requested by entering the DISPLAY command, this is presented on Page 2.

In addition to obtaining the details of a transaction relating to a specified log pivot number, you can use viewing mode to obtain details of transactions that cause a particular condition, such as system failure or looping. Refer to Activity Log for more information on pivot number.

Refer to Using LINC/MON to Read the Log for more information about the properties contained in the log file.

Inquiry Mode

Using inquiry mode, you might obtain names and details of your application Ispecs and attributes, and then use these details to make inquiries on your log files.

More information and instructions for using LINC/MON are included in the following subsections. An alphabetic reference list of all LINC/MON commands is included in a subsequent subsection.