About scope of metric collection

Mainframe Analytics Recorder User Guide

Version
10.1.x
Audience
anonymous
Part Number
MK-92HC226-08
ft:lastEdition
2026-01-30
This section describes the scope of metric collection.
  • For MPUs, ports, parity groups, and the top 20 resources with the highest MP usage:

    The storage system specified for the SN operand of the HDA parameter of the metric collection program is the scope of collection.

  • For LDEVs:

    The volumes defined in the disk configuration definition file by scanning are the targets of collection. To collect from some of the volumes in the disk configuration definition file, you can use the LDEVFILT parameter of the metric collection program to filter the volumes. However, to collect from Non Gen'ed volumes, use the LDEVALL parameter of the metric collection program to specify the scope of collection. You do not need to scan the scope of collection.

For a scan of an LDEV, the relationship between the scopes specified by the LDEVFILT and LDEVALL parameters and the scopes of collection are shown in the figure below.

Figure. Relationship between scans, the scopes specified by LDEVFILT and LDEVALL, and the scope of collection
Tip:

Specification of the parameters LDEVFILT and LDEVALL is disabled for metrics (MPUs, parity groups, ports, the top 20 resources with the highest MP usage) other than LDEV metrics.

The table below shows the scope specification (operand).

Table. Scope specification (operand)

Purpose of specification

Location to specify

Scope specification (operand)

To scan

SYSIN of the disk configuration acquisition program

  • Device number (DEVN)
  • Volume serial number (VOLSER)
  • SMS storage group name (STORGRP)
  • Subchannel set ID (SCHSET(ALL))

To filter the collection scope within the scan scope

The LDEVFILT parameter of the metric collection program

  • Device number (DEVN)
  • Volume serial number (VOLSER)
  • SMS storage group name (STORGRP)
  • Subchannel set ID (ACTSS)

To collect from a Non Gen'ed volume

The LDEVALL parameter of the metric collection program

  • Storage system serial number (SN)
  • CU number (CU)
Note: To filter the scope by using STORGRP (SMS storage group name) of the LDEVFILT parameter, you also need to use STORGRP to specify the scope of the scan in advance.