Replicating physical volumes in an smf environment, Include and exclude, Rdf ems events and the logfile – HP NonStop G-Series User Manual
Page 34: Configuring sdr, Include and exclude 3-2, Rdf ems events and the logfile 3-2, Configuring sdr 3-2
Configuring SDR
HP NonStop SQL DDL Replicator User’s Guide —545799-005
3-2
Configuring SDR
table partition. See the discussion below in
for further
details.
Replicating Physical VOLUMEs in an SMF Environment
The RDF VOLUME configuration determines how SDR translates the DDL for
execution on the backup systems. When configuring RDF to replicate databases on
SMF virtual volumes, it is usually not necessary to specify the physical volumes. If,
however, you specify PHYSVOL in DDL statements, you must specify the physical
volume mappings in RDF.
INCLUDE and EXCLUDE
SDR stores the DDL information it needs for replication in files called depot files, that
reside in subvolumes on the replicated volumes named ZASDRnnn, where nnn is the
primary node number. These files are described in detail in paragraph
In order to function correctly, the depot files in ZASDRnnn subvolumes must be
replicated by RDF.
•
More recent version of RDF, starting with SPRs H08^ABR and A07^ABS,
automatically replicate ZASDRnnn subvolumes. In fact, ZASDRnnn subvolumes
cannot be excluded from the RDF configuration.
•
When prior versions of RDF are in use, SDR checks the RDF configuration to
insure that the ZASDR* subvolumes are replicated by RDF. If ZASDR* subvolumes
have been excluded, or have not been included, SDR issues a warning to notify
you that the RDF EXCLUDE or INCLUDE specification will cause SDR to
malfunction.
RDF subvolume name mapping using a mapfile (RDF 12) does not permit mapping
subvolumes beginning with X, Y, or Z, so it cannot interfere with SDR replication.
RDF EMS Events and the LOGFILE
SDR monitors the operation of RDF in many ways, but one primary input is RDF
events in the EMS event log. RDF writes events to both $0 and any EMS collector
configured RDF as the RDF LOGFILE. SDR always monitors the LOGFILE collector if
it is configured. Otherwise, it monitors the $0 collector.
You must not configure “pre-log filtration” to remove the RDF events from the event log
that SDR is monitoring.
Configuring SDR
The following paragraphs describe global settings that control the capture and
replication of DDL operations.