Function

To set the SMF buffer warning level.

Parameters

BUFWARN=bufwarn

The percentage (0-100) of SMF buffers used at which the $HASP050 message alerts the operator of a shortage of SMF buffers. JES2 deletes this message from the console when the resource shortage is relieved (either by a decrease in resource use or an increase in the threshold).

Note: If you specify 0, no alert is given.

Authority Required

This command requires device and system authority. The description of the $T RDRnn command explains how to ensure that the authority of the appropriate MVS™ system command group is assigned.

This command requires control security access authority. For a description of assigning command input authority, see z/OS JES2 Initialization and Tuning Guide, SA32-0991.

Scope

Single member. This command will be in effect for this member only.

Depending on your installation's setup, however, you might want this command to be applied to all members of the MAS (to ensure a consistent environment across the MAS). If so, you can use the MVS ROUTE *ALL command to issue this command to all active members (if the JES2 command character is the same on all members). See z/OS MVS System Commands, SA38-0666 for more information on using the ROUTE *ALL command.

Messages

The $HASP841 message displays the current values of all the parameters on the SMFDEF initialization statement.

When 85 percent of the SMF buffers are being used, JES2 issues the $HASP050 message to alert the operator of a SMF buffer shortage.