Example 13-3 Data that is returned from the POOLCNT command 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: 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.  Use the MI to modify the maximum-allowed number of volumes in the copy-exported state  (see Figure 13-2). Figure 13-2 Maximum allowable number of volumes in copy-exported state 754  IBM TS7700 Release 5.0 Guide – 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)