System Administrator’s Guide U42252-J-Z915-1-76
The individual Components The Archiving Monitor
Figure 4: The archiving monitor
The archiving monitor amon has the task of permanently and regularly
monitoring and backing up the offline redolog files, which accrue in the archive
directory. Once the configurable number of archived redolog files has been
reached (the threshold value is specified by AMON_MAX_LOGS), the archiving
monitor daemon initiates a backup and then deletes the accrued files. It retains
a number of the newest redolog files, specifically the number given by the value
of AMON_MIN_LOGS. The daemon checks at predefined intervals (specified by
the parameter AMON_INTERVALL) whether the specified threshold value has
been exceeded, and checks this again at the end of each backup.
On OPS systems the archiving monitor am on is used on every OPS node,
so we recommend to use the same pathnames to the redolog files on
every node.
DBMS
control file
USER
database files
redolog files
SYSTEM TEMP
Tablespaces
Oracle’s
archiving
process
archive
directory
Treshold
value
Database interface NSR-ORA
Archiving
monitor
Volume management
Volume pool management
Multiplexing
Jukebox support
Tape library
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