gtpa1m0d | ACF/SNA Network Generation |
The following information describes some SNAKEY-related considerations for defining the records for the SNA structures.
#NCBRI and #SPARI records are used only by resources that are defined using the OSTG program. Therefore, the number of #NCBRI and #SPARI records allocated during SIP must be equal to or greater than the number of resources that you plan to define using the OSTG program.
You can also use the ZNDYN ADD command and dynamic LU support to define resources to the TPF system. Resources defined using the ZNDYN ADD command or dynamic LU support do not use #NCBRI and #SPARI records.
See the following for more information:
Enough #CCBRU records must be allocated during system initialization program (SIP) processing to hold all the conversational control block (CCB) entries defined by the MAXCCB parameter. The minimum number of records can be determined by the following formula:
Number of CCB entries × Length of CCB entry ------------------------------------------------ 4079
Where:
The #CCBRU fixed file records are used to keypoint (update) the CCB main storage control blocks.
Enough #RV1RU and #RV2RU records must be allocated during SIP processing to hold all the resource vector table (RVT) entries defined by the MAXRVT parameter. The minimum number of records can be determined by the following formula:
Number of RVT entries × Length of RVT entry ------------------------------------------------ 4079
Where:
Enough #SRTRU records must be allocated during SIP processing to hold all the system recovery table (SRT) entries defined by the MAXSRT parameter. The minimum number of records can be determined by the following formula:
Number of SRT entries × Length of SRT entry ------------------------------------------------ 4079
Where:
Enough #SC1RU and #SC2RU records must be allocated during SIP processing to hold all the session control block (SCB) entries defined by the MAXSCB parameter. The minimum number of #SC1RU records can be determined by the following formula:
Number of SCB entries × Length of SCB1 entry ------------------------------------------------- 4079
Where:
The minimum number of #SC2RU records can be determined by the following formula:
Number of SCB entries × Length of SCB2 entry ------------------------------------------------- 4079
Where:
The #SC1RU and #SC2RU fixed file records are used to keypoint the SCB main storage control blocks.
Enough #RT1RI and #RT2RI records must be allocated during SIP to hold all the rapid transport protocol control block (RTPCB) entries defined by the MAXRTPCB parameter. See TPF ACF/SNA Data Communications Reference for information about how many of these records to define.