Defining the IMSplex name for RECON loss notification or DBRC parallel RECON access

If automatic RECON loss notification is the only use of the CSL in an IMSplex, SCI is the only CSL address space that is required.

All DBRC instances accessing this RECON must specify the IMSplex name for the RECON data set by using the DBRC SCI Registration exit routine (DSPSCIX0) or the EXEC statement keyword parameter IMSPLEX=. To use SCI, DBRC must provide the name of the IMSplex in which the DBRC instance is running.

The DBRC SCI Registration exit routine, DSPSCIX0, is an exit routine that DBRC calls before it registers with SCI. If you have enabled parallel RECON access, this exit routine must supply the IMSplex name needed for SCI registration. If the exit routine is not used, DBRC continues as if the sample version of the exit routine was being used, which means that DBRC does not register with SCI. DSPSCIX0 must be found in an authorized library or in LINKLST. In a TSO environment, the library that contains DSPSCIX0 must be a TSO TASKLIB library.

If more than one set of RECONs is defined in the IMSplex, a group_id also needs to be defined either in the DSPSCIX0 exit routine or in the RECON data set. The EXEC statement keyword parameter for the group_id is DBRCGRP=xxxx. To define a group_id in the RECON data set, use the CHANGE.RECON IMSPLEX(imsplex_name,group_id) command.