ARCH

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ARCH (Oracle's ARCHiver Process) is an Oracle background process created when you start an instance in ARCHIVE LOG MODE. The ARCH process will archive on-line redo log files to an archive destination, typically a directory on the database server.

Check process[edit]

The following Unix/Linux command is used to check if the ARCH process are running:

$ ps -ef | grep arc
oracle    4414     1  0 20:27 ?        00:00:00 ora_arc0_orcl
oracle    4416     1  0 20:27 ?        00:00:00 ora_arc1_orcl
oracle    4418     1  0 20:27 ?        00:00:00 ora_arc2_orcl
oracle    4420     1  0 20:27 ?        00:00:00 ora_arc3_orcl
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