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LI REQ,BARR68A,POOLCNT CBR1020I PROCESSING LIBRARY COMMAND: REQ,BARR68A,POOLCNT. CBR1280I LIBRARY BARR68A REQUEST. 919 KEYWORDS: POOLCNT -------------------------------------------------------------------- PHYSICAL MEDIA COUNTS V2 .0 POOL MEDIA EMPTY FILLING FULL ERASE ROR UNAVAIL CXPT 0 JA 164 0 JJ 38 1 JA 2 6 12 0 0 1 0 9 JJ 0 4 22 0 0 0 45 

Pool 0 is the Common Scratch Pool. Pool 9 is the pool that is used for Copy Export in this example. Example 13-3 shows the command POOLCNT . The response is listed per pool: 

– Media type used for each pool 

– Number of: 

GLYPH<129> Empty physical volumes that are available for Scratch processing 

GLYPH<129> Physical volumes in the filling state 

GLYPH<129> Full volumes 

GLYPH<129> Physical volumes that were reclaimed, but need to be erased 

GLYPH<129> Physical volumes in read-only recovery (ROR) state 

GLYPH<129> Volumes unavailable or in a destroyed state (1 in Pool 1) 

GLYPH<129> Physical volumes in the copy-exported state (45 in Pool 9) 

Use the MI to modify the maximum-allowed number of volumes in the copy-exported state (see Figure 13-2). 

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You must determine when you usually want to start the Copy Export operation. Thresholds might be the number of physical scratch volumes or other values that you define. These thresholds can even be automated by creating a program that interprets the output from the Library Request commands PDRIVE  and POOLCNT , and acts based on the required numbers. 

For more information about the Library Request command, see 10.1.3, “Host Console Request function” on page 597. 

