Redolog Switching Help
Redologs are where Oracle writes all transactions to, in addition to writing to a block of memory, which eventually makes its way to datafiles on disk. Redologs capture INSERT, UPDATE, and DELETE activity, and provide security in case the database or machine which it runs on crashes. The are crucial to point in time recovery. Generally we don't want to be switching redo-logs too quickly lest we degrade the databases performance.

Below is an example of how to configure monitoring redo-log switching in karma:

redolog:5:30:15

In this example we're monitoring every 5 minutes, and if we're switching redologs more often than every 30 minutes, we flag a WARNING, and more often than 15 minutes, we flag an ALERT.