You can't replicate certain tables in Instance Data Replication (IDR). Child tables of tables in the exclusion list are also excluded.

Excluded tables

These tables are excluded from IDR:
  • Tables with the prefixes V_PREFIX, SYSX_, sys, ts_, ua_, usageanalytics_, wf_, ecc_, clone_, jrobin_, rrd_, imp_, pf_, pfd_, idr_

    sys_domain is an exception.

  • Rotated tables, including syslog, sys_querystat, ecc_queue, ecc_event, cmdb_metric, sysevent
  • Tables without a sys_id
  • sso_federation
  • saml2_update1_properties
  • sso_properties
  • digest_properties
  • Instance

Child tables that extend these tables are also excluded from IDR and should not be included in replication sets because replication fails if they are included. For example, sc_cat_item extends sys_metadata, which is an excluded table. This makes sc_cat_item an excluded table due to inheritance.

Tables to avoid replicating:

  • cmdb
  • cmdb_ci

If you determine the CMDB tables must be replicated, you must use conditions to constrain the count of replicated records and ensure all required columns are included in the replication set.