Monitoring common storage usage

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You can use the Service Management Suite to monitor Common Service Area (CSA) usage and alert operators when a problem occurs.

Using the OMEGAMON® on z/OS® monitoring agent, you can monitor CSA usage. CSA normally contains data accessed by a number of system address spaces. You can use the IBM Z® System Automation product with the IBM Z NetView product to alert operators if a problem occurs with CSA usage or to invoke another policy-based action to resolve the problem. In this scenario, the operator is alerted through a WTO that is shown on the console.
  • Using the OMEGAMON on z/OS product, you can create or modify a situation (for example, SMSz_CSA_CRITICAL) to specify an initial response to excessive CSA storage usage.
    In this scenario, the situation issues the System Automation INGSIT command as a Take Action command. The Take Action command is run by the NetView program to generate the ING150I message that contains the following information:
    • health status that is known to the System Automation program
    • monitored object name
    • name of the address space that exceeded the monitoring threshold for CSA usage
    When the situation condition is true, it is also listed in the Situation Event Console. If the situation is associated with a monitored resource, it is also visible in the Navigator pane of the Tivoli® Enterprise Portal client.

  • Using the System Automation product, you can create a monitor resource (for example, CSA_MONITOR) that reacts to the ING150I message.

    The CSA_MONITOR can set its health status to CRITICAL or NORMAL based on the severity of the ING150I message.

  • Using the System Automation product, you can map actions to be run within the HEALTHSTATE policy to react when the status changes to CRITICAL.

    The HEALTHSTATE policy can invoke a REXX script that issues a WTO to alert an operator when the status changes to CRITICAL. The HEALTHSTATE policy can also invoke a REXX script to issue another WTO when the status returns to NORMAL.

A video is available on YouTube that provides additional details: Usage of CSA storage.