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

Entering RDFCOM Commands
Compaq NonStop™ RDF/IMP and IMPX System Management Manual—522204-001
8-42
Command Overview
•
If you include the TIMESTAMP, INITTIME, or SYNCHDBTIME options in the
INITIALIZE RDF command, it is suggested that all MAT files are present from the
current file to the file containing the TMF shutdown record or the commit/abort
record with a timestamp less than the specified timestamp. If RDFCOM tries to
open a nonexistent file, RDFCOM can trigger restoration of the missing audit trail
files from tape or disk based on your response to a prompt message. Therefore, not
every file in the MAT must be present, from the initial file to the current file. For
example, if the current file is AA000010 and the shutdown record is in AA000009,
only files AA000009 and AA000010 need be present.
•
In any event, if you plan to enable updating on the backup system as part of the new
configuration, ensure that the primary and backup databases are logically identical
before entering the INITIALIZE RDF command. For more information about
database synchronization, see Understanding Database States
in section 6.
Examples
The following INITIALIZE RDF command, issued on the primary system, \LON,
initializes the subsystem to 2:30 pm, January 12, 2000:
]INITIALIZE RDF, BACKUPSYSTEM \CHI, TIMESTAMP 12JAN2000 14:30
Do you wish to proceed? [Y/N] Y
Please wait while RDF searches for the specified timestamp.
TMF shutdown at 12JAN2000 14:30 has been found. RDF will
start at RBA: 376275 MAT file: $AUDIT.ZTMFAT.AA000414
Do you still wish to start at this point? [Y/N] Y
The following INITIALIZE RDF command, issued on the primary system \LON after
TMF was stopped, deleted, and reconfigured, initializes RDF at once, without prompting
you to confirm your request:
]INITIALIZE RDF, BACKUPSYSTEM \CHI, SUFFIX 2 !
Note that in the first example above the RDF control subvolume is implicitly named
LON while in the second example it is explicitly named LON2.