Using the Realtime Monitor › Storage Pool Detail (PF9)

Storage Pool Detail (PF9)

 PM-Rnn.n SYSTEM71         CA, Inc.                  V71      08.348 07:38:25.03
 CMD-->                                                             Window : 02
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   02 Storage Pool Detail                                                     >
   Pool   Total Storage   High   SOS SOS  Cushn    Pages Release  Pages  Pfix
   ID   Storage  In_Use  Water Count Now   Size Released   Count Pfixed Count
    0    1208kB   124kB  128kB                       19      19
    120  1000kB   12288  20480             4096      29      28
    150    29mB   45056  81920             4096      87     173
    254    10mB   152kB  164kB             4096      87      33
    255    10mB   584kB  588kB                       46      46
    255  2960kB  2960kB 2960kB

PM-Rnn.n SYSTEM71         CA, Inc.                  V71      08.348 07:38:45.04
 CMD-->                                                             Window : 02
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   02 Storage Pool Detail                                                  <
  Pool SOS   SOS  Cushn  Pages Release Pages  Pfix Pages Pfree Scan1 Scan2
  ID   Count Now  Size Released Count Pfixed Count Freed Count Count Count
   0                      19      19                             66   163
   120            40960   29      28                             96    27
   150            40960  187     173                            346   169
   254            40960   87      33                            101   142
   255                    46      46                            383    95
   255                                         1

Screen Description

The Storage Pool Detail screen displays a line of information for each storage pool defined to the DC/UCF system.

What To Look For

Look for any of the following situations that can indicate storage-use problems:

• The largest amount of storage in use at one time, shown in the High Water field, is close to the size of the storage pool, shown in the Total Storage field.
• There is a high number in the SOS Count field or a Y (yes) in the SOS Now field.
• Whether the amount of storage available, determined by subtracting the value in the Storage In Use field from the value in the Total Storage field, is less than the size of the cushion shown in the Cushn Size field. Regular use of the storage cushion can impede system performance because the DC/UCF system does not dispatch tasks when the cushion is being used.

Note: To identify programs that are not releasing storage or which are acquiring large amounts of storage, look at the LTERM Resource Usage Detail screen.

If any of these situations occur regularly, you should increase the size of the storage pool:

• For storage pool 0, which is the primary storage pool, increase the size specified by the STORAGE POOL parameter of the system generation SYSTEM statement. When no storage pools are defined, all storage required by the Lock Manager is acquired form storage pool 0. This amount of storage is based on the SYSLOCKS parameter of the system generation SYSTEM statement.
• For storage pool 255, which is the primary XA storage pool, increase the size specified by the XA STORAGE POOL parameter of the system generation SYSTEM statement.
• For any other storage pool, increase the SIZE parameter in the appropriate system generation STORAGE POOL statement.

If you don't have enough space to increase the storage pool, reduce the value assigned to MAX TASKS and MAX ERUS parameters. Use relocatable storage for CA ADS, and monitor scratch usage.