DSVCI—Variable VSAM control intervals
Use the Modify Data Set Variable VSAM Control Intervals panel or the DSVCI command to control whether Db2 will use VSAM to manage the data set for a table space.
Modify Data Set Variable VSAM Control Intervals panel
Command ===> _________________________________________________________________
Command: CURRENT
Description . . . . . . . . : VARIABLE VSAM CNTL INTERVALS
Type the new Variable VSAM Control Interval indicator you wish to change to. Then Press Enter
Enable Variable Control Intervals
Enable Variable CI(s) . . . Y (Y, N)
Command syntax and parameters
Value | Description |
|---|---|
DB2ssid | Db2 subsystem ID or the name of the Db2 data sharing group to which the command applies. |
opertuneID | OPERTUNE system profile name (if OPERTUNE is running as a started task) or the batch job name (if OPERTUNE is running as a batch job). |
Y | A data set managed by Db2 is created with a VSAM control interval that corresponds to the size of the buffer pool used for the table space. |
N | Data sets managed by Db2 will be created with a fixed control interval of 4 KB, regardless of the buffer pool size. |
NORESET | The changes you request remain in effect until the Db2 subsystem is cycled. |
Db2 parameter values
Field | Installation panel | CLIST parameter | ZPARM macro | ZPARM parameter |
|---|---|---|---|---|
Vary DS Control Interval | DSNTIP7 | None | DSN6SYSP | DSVCI |