HP NonStop RDF, Руководство по управлению

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system. You must include the AUDITED parameter in both the BACKUP and RESTORE
commands.
BACKUP $TAPE,($DATA01.*.*,$DATA02.*.*,$DATA03.*.*,
$DATA04.*.*), AUDITED
RESTORE $TAPE,($DATA01.*.*,$DATA02.*.*,$DATA03.*.*, $DATA04.*.*), AUDITED
Synchronizing Databases With FUP
You can use the FUP DUP command to copy Enscribe database files from the primary system
to the backup system. If you use FUP DUP, the “FUP ALTER
filename
, NO AUDIT” command
is performed implicitly for each backup file that corresponds to a primary file protected by RDF.
You will therefore need to turn the audit flags back on for all the data volumes on the backup
system after the FUP DUP operation is complete.
NOTE:
For this copy operation to work correctly, do not specify the SAVEALL parameter in
the FUP DUP command.
Synchronizing Partitioned Files
When synchronizing partitioned files, you must consider one major difference between NonStop
SQL/MP tables and Enscribe files: a NonStop SQL/MP catalog has a description of all indexes of
a table and partitions of a partitioned table, but a partitioned Enscribe file has no associated
catalog.
To ensure the consistency of a NonStop SQL/MP catalog, you must copy all partitions of a
NonStop SQL/MP table and its dependent indexes at one time rather than on a partition basis.
You can use either the SQLCI DUP command or the BACKUP and RESTORE utilities to copy
the partitions.
For an Enscribe file, you can use the FUP DUP command or the BACKUP and RESTORE utilities
to copy the individual indexes and partitions. Then use FUP ALTER to incorporate the other
partitions and any alternate indexes into the primary partition.
If the volume names for partitions on the backup system are different from the volume names
on the primary system, you need to change the volume references for those partitions.
Backing Up Application Programs and Files
To enable the backup system to take over in the event of a primary system failure, you need to
put usable copies of all program files, OBEY command files, and other files your applications
use on the backup system. You can do this by using the NonStop Autosync product. After copying
these files, you might need to change names to reflect the backup system’s naming conventions,
and you might need to recompile some programs.
The following practices are recommended:
• SQL compile all NonStop SQL/MP programs after moving them to the backup system. A
static recompilation reduces the applications’ startup costs after an RDF takeover operation.
Alternatively, you can use the late binding feature. To do this, the SIMILARITY CHECK
attribute for all referenced tables and protection views must be enabled and the program
compiled with the CHECK INOPERABLE PLANS parameter.
• Use DEFINEs for all NonStop SQL/MP objects where possible; this simplifies the commands
for your OBEY command files and the commands for your NonStop SQL/MP DDL operations.
Cache for RDF IMAGETRAILS and UPDATER UPDATEVOLUMES
When you have determined the volumes you wish to use for Imagetrails and Updatevolumes,
you should configure several thousand 4k blocks of cache for each volume. This will considerably
increase the performance of the receiver and updaters.
74 Installing and Configuring RDF