Displaying 64-bit buffer information

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The ISPF Session program displays the 64-bit buffer information. This information will help customers better manage buffer allocation and see how allocations are happening. Using this ISPF panel, user can set the storage buffer values and improve the performance.

Procedure

To display the 64-bit buffer information:

  1. From the ISPF Primary Menu, select AVZ Admin and press ENTER. The server management menu panel is displayed.
  2. From the Server Management Menu, select option 12 for AVZ Admin and press ENTER. The virtual storage information panel is displayed.
  3. From the Virtual Storage Information menu, select option 10 for AVZ Buffer Pools and press ENTER. The 64-Bit Storage Pool panel is displayed. 
    ------------------------------  64 Bit Storage Pool  ----------- Row 1 of 11 
Command ===>                                                                                               SCROLL ===> CSR            
LCs: F Format  P Print CB  S Show CB                                        
                                                                                
   Size(mb)  Blocks     Current   Max    Full  Requests    Total Pool 
                                                            Size(mb)    Note                     
   24        128        0        4        0     9            3072        BROWSED
    1         16        0        0        0     0              16        BROWSED
    2        256        0        4        0    22             512        FORMATTED
    3          8        0        0        0     0              24                
    4       1024        0        2        0    28            4096    
    6          4        0        2        0     4              24
   16         16        0        0        0     0             256
   64         16        0        0        0     0            1024 
  128          8        0        0        0     0            1024
  256          8        0        0        0     0            2048
  512          4        0        0        0     0            2048
**End**

    The program supports the following line commands:

    • F: Formats the buffer info in detail for the selected row.
    • P: Prints the buffer info entry for the selected row.
    • S: Displays the control block information for the selected row.

    Type the command to the left of the line and press ENTER. For example, the formatted buffer information for the selected line is displayed when “F” line command is entered. 

    BROWSE  64 Bit Storage Pool      Line 0000000000 Col 001 049
Command ===>                                                                           SCROLL ===> CSR                                                   
 *******************************************************************************************************                                                                               
   Pool Size(MB)                    24
   Number of Blocks                  128
   Current Buffer Count              0
   Max Number of Blocks              4
   No Buffer available Count         0
   Total Number of Requests          9
   Total Pool Size(MB)               3072
**End**

    The following table describes each column name on the ISPF panel and 64-bit buffer information.

    Table 1. 64-bit buffer information
    Column Description
    Size This column displays the buffer size in MB.
    Blocks This column displays the total number of buffer pools allocated.
    Current This column displays the number of pool buffers currently in use.
    Max This column displays the high-water mark for the buffer pool.
    Full This column displays the number of times the buffer pool was full and the number of times the storage request had to be issued to get a buffer.
    Requests This column displays the number of requests serviced by this buffer pool.
    Total Pool Size This column displays the product of Size and Blocks column.
    Note This column displays the action performed on each line.