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GLYPH<SM590000> Current reclamation threshold and target pool 

<img src='content_image/982030.jpg'>

Check the ODERV12 statements from the BVIR jobs to select which types of cartridges are used in your environment. Only four different types of media can be reported at the same time. 

## H32CSP: hNode Library Historical Scratch Pool Activity 

You can use the H32GUPXX report to view the cartridges on a per pool base. In addition, use the H32CSP report to see the trend of empty cartridges. This report provides an overview of the empty cartridges in the common scratch pool on a cartridge type basis, as shown in Example 11-19. 

<img src='content_image/982031.jpg'>

It is not  sufficient to check only the scratches in the common scratch pool. In addition, you must check that all pools can borrow from the CSP and return the empty cartridges to the CSP. If a pool is set to no borrow , ensure that enough empty cartridges always are in inside this pool. This number is reflected in the H32GUPXX reports. 

In a heterogeneous environment, back level cartridges (JA/JB) can be used only for read purposes and not  write purposes. 

## H33GRID: Hnode Historical Peer-to-Peer (PTP) Activity 

The Peer-to-Peer Activity report that is shown in Example 11-20 provides various performance metrics of grid activity. This report can be useful for installations that are working in Deferred copy mode. This report enables, for example, the analysis of subsystem performance during peak grid network activity, such as determining the maximum delay during the batch window. 

<img src='content_image/982032.jpg'>

