RDF/IMP and IMPX System Management Manual (RDF 1.4+)

HP NonStop RDF/IMP and IMPX System Management Manual—524388-001

11-1

Subvolume- and File-Level

Replication

By default, RDF provides volume-level protection, wherein changes to all audited files

and tables on each protected primary system data volume are replicated to an

associated backup system data volume.

RDF/IMP and IMPX also support subvolume- and file-level replication. To use this

capability, you supply INCLUDE and EXCLUDE clauses when configuring updaters to

identify specific subvolumes and files you want either replicated or not replicated.

INCLUDE Clauses

INCLUDE clauses explicitly designate those subvolumes, files, and tables residing on

a particular primary system data volume to be replicated. Changes to all other audited

files and tables on the particular volume are ignored.

In the following example, only changes to the audited files MYSUBVOL.MYFILE,

MMTEST10.FILE1, and MMTEST10.FILE2 on $DATA01 are replicated:

SET VOLUME CPUS 1:2

SET VOLUME IMAGEVOLUME $IMAGE

SET VOLUME PRIORITY 185

SET VOLUME PROCESS $MM01

SET VOLUME UPDATEVOLUME $DATA01

SET VOLUME INCLUDE MYSUBVOL.MYFILE

SET VOLUME INCLUDE MMTEST10.FILE1

SET VOLUME INCLUDE MMTEST10.FILE2

ADD VOLUME $DATA01

Note. All SQL shared-access DDL operations involve two files – a source file and a target file.

If you are using INCLUDE and EXCLUDE lists to define your RDF configuration and you plan

to execute any such operations on data volumes protected by the RDF subsystem, you must

be certain to define both the source and target files as protected files; if either the source or

target file is not replicated, the updaters will not stop as they are supposed to and the backup

database could be corrupted.