RDF System Management Manual for H-Series RVUs (RDF 1.8)

Example
To issue this command as part of online database synchronization, enter:
]STOP SYNCH
STOP UPDATE
The STOP UPDATE command suspends updating of the backup database and stops all updater
processes. When all updater processes are stopped, RDF issues a 910 EMS message.
STOP UPDATE [ , TIMESTAMP <day><mon><year><hour>:<min> ]
If you use the stop-update-to-time version of this command, the TIMESTAMP
parameter suspends updating at the specified time. A stop-update-to-time operation is cancelled
by a STOP RDF, NonStop SQL/MP Shared Access DDL, or takeover operation.
NOTE: The timestamp you specify must be at least 5 minutes later than the current time at
your primary system. If you specify an earlier time, an error message appears.
day
is a number from 1 to 31.
month
is the first three letters of the month, such as JAN, FEB, MAR.
year
is a four-digit number, such as 2004.
hour
is a number from 0 to 23.
min
is a number from 00 to 59. min must be preceded by a colon (:).
If all protected data volumes on the primary system are not up and enabled when the specified
TIMESTAMP is reached, both the stop-update-to-time operation and the RDF product abort. In
such a case, you can restart RDF immediately but you should not reissue the stop-update-to-time
command until all protected data volumes on the primary system are up and enabled.
Where Issued
Primary system only.
Security Restrictions
You can issue the STOP UPDATE command if you are a member of the super-user group and
have a remote password from the RDF primary system to the backup.
RDF State Requirement
You can issue the STOP UPDATE command only when RDF is running.
Usage Guidelines
When you disable updating with the STOP UPDATE command, the TMF audit images and
commit/abort records from the MAT are still transmitted to the backup system as they are
generated by transactions. This functional characteristic ensures that, if an RDF TAKEOVER
operation becomes necessary, the backup system database can be made current by the TAKEOVER
command.
Use the STATUS RDF command to determine whether updating is enabled or disabled. If updating
is disabled, the STATUS RDF display specifies the state “Update stopped” and shows no status
information for the updater processes.
238 Entering RDFCOM Commands