RDF/IMP and IMPX System Management Manual (RDF 1.3+)

Installing and Configuring RDF
Compaq NonStop™ RDF/IMP and IMPX System Management Manual—522204-001
3-17
Online Product Initialization
was last shut down. You determine the appropriate timestamp by examining previous
TMF messages in the EMS log. In this example, the TIMESTAMP parameter specifies
1:32 p.m., January 7, 1999:
>RDFCOM;INITIALIZE RDF, BACKUPSYSTEM \CHICAGO,
SUFFIX A, TIMESTAMP 7JAN1999 13:32
To issue the INITIALIZE RDF command from within an RDFCOM session, enter the
following in response to the RDFCOM prompt:
]INITIALIZE RDF, BACKUPSYSTEM \CHICAGO, SUFFIX A,
TIMESTAMP 7JAN1999 13:32
If the INITIALIZE RDF commands in this discussion were issued from the primary
system \DALLAS, RDF would respond by creating a configuration file in the control
subvolume named $SYSTEM.DALLASA.CONFIG.
Without a TMF Shutdown Timestamp
If you have just installed (or deleted and reinstalled) TMF so that it starts at relative byte
address (rba) 0 in audit trail file sequence number 1, you should now issue an
INITIALIZE RDF command without the TIMESTAMP option at the TACL prompt on
the primary system:
>RDFCOM; INITIALIZE RDF, BACKUPSYSTEM \BOSTON, SUFFIX A
Note that when you begin an RDFCOM session on a system in which RDF has never
been previously initialized (such as \PRIMSYS, for example), RDFCOM responds with
the following prompt:
***Warning*** The control subvolume PRIMSYS is not presently
***Warning*** configured for an RDF primary system.
You must use the OPEN command to open an RDF CONFIG file in
an existing RDF control subvolume, or you must initialize a
new RDF configuration with the INITIALIZE RDF command.
To continue with the session, you must either enter an INITIALIZE RDF command, or
use the OPEN command as directed in Section 8, Entering RDFCOM Commands.
Online Product Initialization
The INITIALIZE RDF command includes a parameter, INITTIME inittime , that you
can use to initialize the RDF product without stopping TMF or your applications.
There are two cases where you would use this capability:
1. If you want to install a new version of the RDF product and you cannot afford to
stop TMF even momentarily to get a TMF shutdown timestamp.
2. If you are running RDF and encounter a problem for which you would like to
reinitialize it without having to resynchronize your databases.