Enabling the long busy handling function

This condition (known as long busy) might range in time from a couple of seconds to many minutes. You can avoid these excessive long wait times by defining the Multiple Area Data Sets I/O Timing (MADSIOT) keyword on the DFSVSMxx member of the IMS PROCLIB data set, thus enabling IMS system's long busy handling function.

For more information about the long busy function, see Managing I/O errors and long wait times in IMS Version 15.3 Database Administration.

structurename

Specifies the name of the coupling facility list structure that IMS uses for the long busy handling function.

iotime

Specifies the maximum time (in seconds) before the long busy handling function is activated. The allowable values are 0 to 255. This value is passed to the I/O subsystem for all I/O requests to MADS. If the time interval specified expires before the request completes, the request is terminated. This explicit request timing value takes precedence over an I/O timing value specified at the volume level.