Using the Interval Monitor › Storage Detail (PF13)

Storage Detail (PF13)

 PM-Rnn.n SYSTEM71         CA, Inc.                  V71      08.348 16:09:53.37
 CMD-->                                                             Window : 02

   02 15:30 STDT Storage Detail                                               >
       Storage     Pool Pool In Short On      High     Storage Storage Storage
          Pool Size(Kb) Use(Kb)  Storage Water(Kb) Cushion(Kb)    Gets   Frees
             0  1016kB    28672        0    40960      28672       115      88
            30  1000kB    104kB        0    144kB       4096       197     182
           200  2000kB        0        0     4096       4096         1       1
           201  2000kB    40960        0    45056       4096        27       1
           202  4000kB    516kB        0    528kB       4096       300     193
           255  1500kB    476kB        0    484kB          0       236     138

 PM-Rnn.n SYSTEM71         CA, Inc.                  V71      08.348 16:09:53.37
 CMD-->                                                             Window : 02

   02 15:30 STDT Storage Detail                                            <
        Storage      High     Storage Storage Storage Storage Storage Storage
           Pool Water(Kb) Cushion(Kb)    Gets   Frees  Pass 1  Pass 2  Pass 3
              0    40960      28672       115      88      96       5       0
             30    144kB       4096       197     182     130       6       0
            200     4096       4096         1       1       0       0       0
            201    45056       4096        27       1      18       8       0
            202    528kB       4096       300     193       0       0       0
            255    484kB          0       236     138       0       0       0

Screen Description

The Storage Detail screen displays statistics related to the use of system storage pools for the current interval. The screen includes one line for each storage pool defined to the DC/UCF system at system generation. For each storage pool, the screen identifies the pool size and provides access statistics.

What To Look For

Storage-use problems are indicated by the Short On Storage field. A non-zero number should represent peak use, not a chronic condition. If the field is always 0, you may have allocated too much pool space.

To alleviate a storage-use problem, you should take the following steps:

1. Decrease storage use. For example, make sure that all programs are making efficient use of storage.
2. If Step 1 does not alleviate the situation, increase the size of the storage pool. However, by doing this, you will probably see an increase in the number of concurrent tasks, which in turn increases the demand for program pool storage and other system resources.
3. Decrease the MAX TASK and MAX ERUS values.
4. In a CA ADS environment, enable the fastmode threshold or relocatable storage. This option reduces storage held concurrently by terminals executing CA ADS applications. However, both facilities increase scratch activity and CPU usage per task. This method should be used as a last resort to alleviate a Short On Storage condition.