Realtime Dataset Metrics basic features

With the intuitive browser-based user interface of Realtime Dataset Metrics (RDM), you can easily retrieve and sort information about a dataset with its various fields and sections.

View By

With the View By drop-down menu, you can view a list of datasets organized as follows:
  • DASD Dataset
    • Dataset (Dataset attributes)
    • Dataset Groups
    • Cluster Summary
    • HLQ (Dataset High-level Qualifier)
    • SMS Class (Management Class, Data Class, or Storage Class)
    • Storage Group
    • Catalogs
  • All Datasets
    • All Datasets (summarization of data from DASD, tapes, and HSM)
    • HLQ (Dataset High-level Qualifier)
  • DASD Volumes
    • Volumes
    • Storage Groups
    • User DASD Groups
    • User Storage Groups
  • Other
    • Storage Toolkit
Note: If you do not specify any filters, the Volumes option might cause long response time and high CPU usage. Add filters to reduce the result row count.

To review dataset groups and the summarized data for them in one place, select the Dataset Groups view from the View By drop-down menu.

To review custom groups for storage groups and the summarized data in one place, select the User Storage Groups view from the View By drop-down menu. Use this option to apply, copy, or delete saved filters. You can also submit Storage Toolkit actions for saved user storage groups the same way as with the Dataset (Dataset attributes) view. For more information, see:

Column Set

With the Column Set drop-down menu, you can switch between columns based on the context. For example, you can examine columns related to the following characteristics:

  • Space
  • VSAM
  • VSAM Statistics
  • GDG
  • DFSMS
  • Allocation
  • Migration

When you select some View By options, such as All Datasets or Dataset, you can add your own column set.

To do so, click the + (plus) button and specify the column set name, and select the interesting attributes in the required order.

Filters

The Filters link opens a pop-up window where you can build ad hoc queries to filter the list of datasets by criteria including size, data last referenced, and other specifications. For example, you might want to view datasets larger than 100MB that are not referenced in the past 30 days. After selecting Filters, select Add filter rule.

You can then select a column to filter by (for example, Percent Used or Allocated Tracks), an operator (for example, > or =), and a threshold value. Finally, click Save. If you decide not to add the filter rule, click Cancel.

When View By > All Datasets is selected, additional Advanced Filters Mode is available for you to build filters by using AND and OR operators, brackets, and masks. Thus, you can build a filter with any complexity. Click Load Example for usage examples.

You can specify multiple filters, and Realtime Dataset Metrics will run the data through all of them before displaying the filtered results.

To remove a filter, click the - (minus sign) button.

To clear all filters, click the Clear button.

Save filters

To save the filter for future use, do the following:
  1. Click Save filters in All Datasets or Dataset.
  2. Specify the filter set name.
  3. Optionally, specify the Filter set group to simplify future sorting of filters.

To create a group, enter Filter set group manually or select it from the drop-down list.

To review previously saved filter sets, click the X saved link under the Save filters button.

You can use the Search input to look for filters by name, and you can reduce the list of output by selecting groups in the Filter set group drop-down list.

The following actions are available with saved filters:
  • Copy to clipboard: This action is useful when you copy filters from one Zowe instance to another or if you want to share the filter definition as text.
  • Delete: This action deletes the saved group. You can also delete the Filter set group if this filter was the only one in that group.
  • Storage Toolkit: This action can be issued against all datasets applicable to the saved filter.
  • Apply: You can apply the saved filter and see datasets for it.

Run Query

To retrieve dataset information, specify the filters you need and click Run Query.

Results

After you run a query, the query results are displayed. If you want to see more data, you can page through the results either with the mouse wheel or with the page counter and arrows at the lower-left side, or with the Page Up and Page Down keys. You can sort by column headers, either in ascending or descending order.

Initially, only a subset of the results can be displayed to save processing time and display results more quickly. When this happens, the page counter says, for example, 1 of 15*. This indicates that only the first 15 pages of data have been retrieved from a larger set of query results.

To see the total number of results, move the mouse pointer over the of indicator; in this example, 15*. This step displays the following link, Load more data and Get result count.

When you click this link, the total number of results matching your query is displayed, and you can page further down through the result set.

If you reach the bottom of the displayed pages and want more data, select Load more data again.

You can enter your page, even if it was not loaded, to navigate the data on that page. Press CTRL+ L to open theSelect Line dialog and go to the page where the requested line of data is located.

You can use CTRL + Click, SHIFT + CTRL, CTRL + SHIFT + Click, and CTRL + A to select the data on the page. With the CTRL button, you can select data on different pages. The following actions are available for selected rows:
  • Storage Toolkit: You can issue Storage Toolkit actions for selected rows.
  • Copy Values: You can right-click a column and select Copy column value/s to copy values to the clipboard. In View By > All Datasets , copied data can be added as values for a multi value filter.

Export

To save the displayed results to the dataset, click the Export button and enter the dataset name. The dataset is then allocated, and the data is exported in comma-separated values (CSV) format to the dataset, similar to using the Dataset Attribute Group Extract dialog in the Tivoli® Enterprise Portal.

When View By > All Datasets is selected, you can export data to the USS directory in CSV, JSON, or XML format.

When View By > All Datasets is selected and the Summarization dialog is open, you can export data to the USS directory in CSV, JSON, or XML format.

Inline editing

With inline editing, you can edit fields directly from a table, without using extra forms. This editing method is available for the Dataset Name, SMS Storage Class, and SMS Management Class attributes. Instead of using the menu and selecting Rename/Alter commands, you can make all changes from the same view. You can inline-edit a single line, or multiple lines at a time.

Single line

To inline-edit a single line, do the following:

  1. Double-click an attribute field. If it is editable inline, it will be highlighted.
  2. Make your edits.
  3. Press Enter and confirm the changes to issue the Rename/Alter command.

    If an error was made during the edit, a corresponding dialog is displayed with an error message.

Multi line

To inline-edit multiple lines at once, do the following:
  1. Use SHIFT + Click or CTRL + Click to select the lines to be edited.
  2. Double-click the attribute field.

    If it is an editable attribute, a corresponding Datasets to be changed form is displayed with the selected datasets and attributes.

  3. Edit the attribute values.
  4. click Apply.

History mode

With the History mode option, you can review previously collected data for the following attribute groups:
  • DASD Dataset
    • HLQ (Dataset High-level Qualifier)
    • SMS Class (Management Class, Data Class, or Storage Class)
    • Storage Group
    • Catalogs
  • DASD Volumes
    • Storage Groups
    • User Groups
Note:
  • To retrieve historical data by using History mode, history collection must be enabled for the corresponding attribute groups in History Collection Configuration via the enhanced 3270UI or Tivoli Enterprise Portal interface.
  • Retrieving historical data for volumes can produce a lot of records. Consider using a filter with the Volser, Device Hex Address, Storage Group Name or Hardware Serial Number attributes to lower the record count and CPU usage.
To set History mode, do the following:
  1. Click the Gear icon in the upper-right corner of the screen.
  2. From the menu that opens, select History mode.

    The History mode settings pop-up window appears. In History mode settings, you can specify the time period for which you want the data to be retrieved.

  3. Select one of the two options, Last or Custom:
    • Select Last to retrieve the data collected over the last one or more hours, days, weeks, months, quarters, or years (if the data is warehoused).

      You can specify the values as needed. The shortest available time period is one hour.

    • Select Custom if you want to specify a more precise time period.

      You can specify the Start Date, End Date, and Time. To do so, click the corresponding field, select the required date from the calendar, and enter the required time.

  4. Click Apply.
For more information about history collection configurations, see: