HP Integrity NonStop H-Series - Manual (Page 52)

SDR Operations
HP NonStop SQL DDL Replicator User’s Guide —545799-006
4-12
Distributed Table Replication
name contains a primary volume on the remote system, but the
ZASDRnnn.AAmmmmmm part of the file name will be the same.)
The SDR depot record contains a list of all systems that received an SRU audit record,
including the volume name used in each remote SRU audit record. SDR must wait until
all such systems have entered that state for the correct file name.
In order to translate distributed table DDL operations, SDR needs an accurate
description of the RDF network, which is a list of RDF control subvolumes and their
primary and backup systems. This must be specified in either the SDR configuration, in
networks where RDF IMP is running, or in the RDF configuration, where RDF IMP/X is
running.
SDR accesses the RDF configurations for each of the systems that are referenced in
the DDL operation, and uses that information to translate the DDL to reference the
appropriate backup systems and volumes.
Then, SDR is ready to execute the DDL operation and restart RDF updating on all of
the listed systems.