File statistics
You can use file statistics to monitor input and output activity of application requests against your files. File statistics indicate the number of service requests that CICS® processes against each file. If CICS totals the number of requests on every CICS invocation, you can monitor any changes that occur in the input and output activity for each file. Because these file statistics might have been reset during the day, see the summary report to obtain a figure of total activity against a particular file during the day.
The statistics do not tell you directly how many input and output accesses CICS has performed for each transaction. You require a single-transaction measurement for this. Nevertheless, by regularly totaling the service requests against individual files, you can anticipate file problems that might occur when input and output activity increases.
The statistical information that is provided by CICS for files lists the number of service requests that are processed against each file that is defined in the File Definitions (FD). The information is dependent on the types of requests that are allowed on the file.
| Statistic ID | High-level language names, statistic message, explanation |
|---|---|
| 020000 |
Explanation: This is used in the statistic record label, to indicate the number of reads that were performed by file control. |
| 020001 |
Explanation: This is used in the statistic record label, to indicate the number of writes that were performed by file control. |
| 020002 |
Explanation: This is used in the statistic record label, to indicate the number of browse operations that are performed by file control. It includes the number of READNEXT and READPREV requests only. It does not include the number of STARTBR, ENDBR, or RESETBR requests. |
| 020003 |
Explanation: This is used in the statistic record label, to indicate the number of deletes that were performed by file control. |
| 020004 |
Explanation: This is used in the statistic record label, to indicate the number of updates that were performed by file control. |
| 020005 |
Explanation: This is used in the statistic record label, to indicate the number of opens that were performed by file control. |
| 020006 |
Explanation: This is used in the statistic record label, to indicate the number of closes that were performed by file control. |
| 020007 |
Explanation: This is used in the statistic record label, to indicate the number of reads that were performed by file control. |
| 020008 |
Explanation: This is used in the statistic record label, to indicate the total number of writes that were performed by file control. |
| 020009 |
Explanation: This is used in the statistic record label, to indicate the total number of browses that were performed by file control. |
| 02000A |
Explanation: This is used in the statistic record label, to indicate the total number of deletes that were performed by file control. |
| 02000B |
Explanation: This is used in the statistic record label, to indicate the total number of updates that were performed by file control. |
| 02000C |
Explanation: This is used in the statistic record label, to indicate the total number of opens that were performed by file control. |
| 02000D |
Explanation: This is used in the statistic record label, to indicate the total number of closes that were performed by file control. |