Limitation; Example; Unpinaudit; Where Issued - HP NonStop RDF J-series RVUs Management Manual

If your primary system is recovered and comes back online, See
recover it and use its database as a backup to the database on your backup system where your
application processing is not taking place.
For further related considerations, see also Exception File Optimization in

Limitation

When building the undo list for an RDF takeover operation, the purger has a limit of 655,360
transactions. If this limit is exceeded, the purger process logs an RDF event 853 and abends. In
this situation, contact your service provider. With some special settings, there is no limit to the
number of transactions that can be undone during a takeover operation.

Example

This command sequence initiates RDF TAKEOVER processing in which the backup system
\TORONTO takes over processing from the primary system \SANFRAN.
1. From the TACL command interpreter on the backup system (\TORONTO), enter:
>RDFCOM SANFRAN
2. From within the RDFCOM session, enter:
]TAKEOVER
3. RDF displays this prompt message:
*** TAKEOVER assumes a disaster on \SANFRAN has occurred.
Are you sure you want to TAKEOVER?
To proceed with the TAKEOVER operation, enter Y or YES.
To stop the TAKEOVER operation, enter N or NO.
After you enter your response, RDFCOM prompts you for your next command.
4. Having initiated the RDF TAKEOVER operation, you can then use a STATUS RDF command
to determine the status of the TAKEOVER operation. If the TAKEOVER operation is still in
progress when you enter the STATUS RDF command, the subsystem displays the current
state as "TAKEOVER IN PROGRESS."
If the TAKEOVER is finished, RDF displays this message in response to the STATUS RDF
command:
STATUS RDF (\SANFRAN -> \TORONTO6) is NOT running
An RDF TAKEOVER has completed
Safe MAT position is SNO 1, RBA 87876660
MAT position for File Recovery: SNO 1, RBA 87876740
Check the log for 724 or 725 messages. Message 724 indicates that the takeover completed
successfully. Message 725 indicates that it did not, and you should reissue the TAKEOVER
command.

UNPINAUDIT

The UNPINAUDIT command unpins TMF audit trail files on the primary system.
UNPINAUDIT

Where Issued

Primary system only.

Security Restrictions

You can issue the UNPINAUDIT command if you are a member of the super-user group.
Chapter 5 (page 121) for how to
Chapter 5 (page
RDFCOM Commands
121).
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