Creating the IP PrintWay message-log data set (basic mode)
IP PrintWay™ basic mode writes messages that track data set transmissions in an IP PrintWay message-log data set. This is a required data set.
The message log is organized as a circular queue. When a message extends to the end of the data set, the next message starts at the beginning. In this way, the size of the message data set remains stable, with old messages automatically overlaid by newer messages.
You can create one message-log data set to be shared by all IP PrintWay functional subsystems (FSSs), or you can create separate data sets for each FSS. To allocate space for the data set and initialize it, use the sample JCL in SYS1.SAMPLIB(ANFMIJCL) to run the ANFMFILE program.
- Physical sequential unmovable organization (PSU).
- Fixed block format (FBA).
- Logical record length (LRECL) of 57 at a minimum. 80 is suggested.
- Block size (BLKSIZE) of about 10 records per block. 800 is suggested.
Secondary space is unnecessary because the ANFMFILE program formats all available space. To change the size of the IP PrintWay message-log data set, rerun the ANFMFILE program.
You can suppress selected messages that IP PrintWay basic mode writes to the message-log data set by writing a Message exit. For more information, see Message exit (ANFUXMSG) — basic mode.
You can view messages in the message-log data set by using the Infoprint Server ISPF panels. For information, see z/OS Infoprint Server Operation and Administration.