Block size option
With the Block size option, you specify the pipe block size.
The following sources are searched (in the order listed below) to find the block size value of the pipe:
- Block size that is specified for the pipe or the replaced data set within the application (for example, if DCB is specified)
- Block size that is specified in the JCL for the pipe or the replaced data set
- Value that is specified in this parameter in the rule
The block size must be compatible with the pipe record length and record format. The pipe block size must be identical for all of the participants in the pipe. If a file is created with the pipe, the file gets the same DCB attributes as the pipe.
Block size option parameters
Parameter | Description |
|---|---|
Values | This option has numeric values of 0-32760. |
| For a writer, the default block size is calculated when Logical Record Length (LRECL) and Record Format (RECFM) are specified in one of the sources previously listed. Otherwise, no default block size is calculated. The default block size calculation depends on the Create File option for writers specification. Default value If a file is not created, the default block size is calculated as follows:
If a file is created, the default block size is calculated as follows:
The default block size for a reader is copied from the pipe after the pipe is initialized with the writers' values. |
Subsystem parameter | None |
Related topics