Owner manual

Introducing SDR
HP NonStop SQL DDL Replicator User’s Guide—545799-005
1-3
Data Files
SDR Monitor ($ZSDR)
The SDR monitor (SDRMON) is a NonStop process pair with the reserved name
$ZSDR. It should be started at cold load time and left running at all times, regardless of
the state of RDF or TMF. If the SDR monitor is executing and properly licensed, then
SDR is active.
SDR Runtime
The SDR runtime (SDRRUNTM) captures DDL operations and stores them in
appropriate locations for replication at a later time. It does not require RDF to be
executing to gather and store the necessary information for later use.
SDR Updater
The SDR updater (SDRUPDT) is a program that performs the actual replication of DDL
at the appropriate time. It will only be executing if RDF is started.
Data Files
The following SDR components are files containing information required by SDR.
SDRERROR
A specially formatted file containing all information, warning, and error messages
issued by the SDRCOM and, sometimes, by the monitor and updater processes.
SDRHELP
A specially formatted file containing HELP information issued by the SDRCOM.
ZSDRTMPL
An EMS template file containing templates for the SDR subsystem. These templates
should be installed in your system as described in the HP DSM Services Manual.
SDRFLTR
An EMS filter for viewing SDR events.
ZCOMTMPL and COMFLTR
An EMS template file and filter for viewing events for the both RDF and SDR. This is
an unsupported component of the SDR product, as it may not be consistent with the
installed release of RDF on your system. But, it can be useful to monitor SDR as it
operates in conjunction with RDF.