Real Storage workspace

This workspace provides information about the use of real storage on your z/OS system in terms of various types of frame counts. The workspace contains four views.

The first bar chart in the workspace illustrates the system level unreferenced interval count. The unreferenced interval count is inversely related to contention for real storage. The lower the unreferenced interval count, the more quickly frames are being referenced. In some cases, a low count is not necessarily indicative of a paging problem. To determine whether real storage is being overused, use this factor in conjunction with the page fault rate displayed in the System Paging Activity workspace.

The second bar chart illustrates available frames. This chart gives you a sense of how much uncommitted storage is available for use.

The Real Storage table view provides information about the factors that may be affecting performance as determined by the number of frames allocated real storage by storage type.

The Real Storage Summary table view provides summary data for all types of real storage. The Frames Used Percent column displays a Warning indicator when the percentage of frames used exceeds 90%, and a Critical indicator when the percentage exceeds 95%.

This workspace can record history.

You can access this workspace directly from the Navigator. From this workspace, you can link to the Storage Shortage Alerts workspace.

Related topics: Organization of system-level predefined workspaces, Attribute groups used by the system-level predefined workspaces