RDF System Management Manual for J-series and H-series RVUs (RDF Update 13)

generates the RDF event 908, you can perform steps 2 and 3. The following is the output of
RDFCOM STATUS RDF command when Updaters are shut down is as follows:
] status rdf
Status of \POS03 -> \METIS RDF 2011/08/18 9:57:24.070
Control Subvol: $SYSTEM.POS03
Current State : Updated NSA Stopped
Reason: NSA operation done on \METIS.$FC0500.DB.File
ErrCpusRel Byte
Addr
SeqnceVolumePriRTD
Time
NameRDF Process
1: 0191$AUDIT164$MMONPMonitor
1: 0323068191$AUDIT1640:00$MEXTExtractor (0)
1: 06$SWAP021640:00$MRCVReceiver (0)
12$SWAP01Imagetrail (0)
1: 0164$TPURPPurger
UPDATERNSASUSPEND set to ON - Updaters Suspend
When each updater on the backup system encounters the Stop-RDF-Updater audit record in its
image trail file, the corresponding updater logs RDF Event 932 and then suspends. When all of
the updaters are completed, RDF logs Event 908 indicating that it is now safe to perform the same
DDL operation on the backup system. After performing the same DDL operation on the backup
system, you can issue the RDFCOM START UPDATE command.
If RDF aborts while the updaters are in the process of suspending, check whether RDF generated
event 908. If Event 908 is generated, perform the following steps:
1. Issue a START RDF, UPDATE OFF command on the primary system.
2. Perform the DDL operation(s) on the backup system.
3. Issue a START UPDATE command on the primary system.
If RDF is not aborted while the updaters were shutting down, or one or more updaters did not
generate event 932, the purger process logs RDF event 905 indicating that you must not perform
the DDL operation on the backup system. If this happens, issue either a START RDF command (if
RDF was aborted) or a START UPDATE command (if the non updater processes are still running).
After issuing one of the commands, only those updaters that did not log the RDF event 932 are
started. When they reach the Stop-RDF-Updater record, they suspend, and the purger once again
checks to see all updaters have processed all image audit up to this special record. When the
purger generates the RDF event 908, you are now ready to perform steps 2 and 3.
The following is the output of RDFCOM STATUS RDF command when Updaters suspend is given
below:
] status rdf
Status of \POS03 -> \METIS RDF 2011/08/18 9:57:24.070
Control Subvol: $SYSTEM.POS03
Current State : Update NSA Stopped
Reason : NSA Operation done on \METIS.$FC0500.DB.File
ErrCpusRel Byte
Addr
SeqnceVolumePriRTD TimeNameRDF Process
1: 0191$AUDIT164$MMONPMonitor
1: 0323068191$AUDIT1640:00$MEXTExtractor(0)
1: 06$SWAP021640:00$MRCVReceiver(0)
12$SWAP01Imagetrail(0)
142 Critical Operations, Special Situations, and Error Conditions