IMS environments that support the online change function

Global online change is not supported in all IMS™ environments that support local online change. Environments that require the MODSTAT/MODSTAT2 data sets do not support global online change. FDBR, XRF alternate and DBCTL-standby do not participate in global online process, however they keep track of the online change from the log records.

Use the following table to determine if global online change is supported in your environment.

Table 1. IMS environments that support online change
Environment Supports local online change? Supports global online change?
DB/DC Yes Yes
DBCTL Yes Yes
DBCTL-standby No No
DCCTL Yes Yes
FDBR No No
RSR active Yes Yes
RSR tracker Yes No
XRF active Yes Yes
XRF alternate No No