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Chapter 4: Scheduled Daily TasksCritical TasksThe system logs are where the operating system and some applications write event records.Depending on the operating system, there may be multiple logs.There may be indications of a developing problem (for example, a hard drive generatingerrors or a failing drive that needs to be replaced).Background jobs are batch jobs scheduled to run at specific times during the day.If you are running critical jobs, you need to know if the job failed, because there may beother processes, activities, or tasks that are dependent on these jobs.Transaction RZ20 is a centralized alert monitor and is new with Release 4.0. With thistransaction, you can monitor the servers in your landscape, such as development, QA,testing, production, etc. You no longer have to individually log into each system to searchfor alerts. If there is an alert, the monitor will link to many of the other transactions later inthis chapter.An alert indicates a potentially serious problem that should be quickly resolved. If notcontained, these problems could degenerate into a disaster.These transactions display all the users who are currently logged on to the system and showthe user’s ID and terminal name.In a smaller company, the administrator can recognize user IDs logged on to “unfamiliar”terminals, indicating that someone—other than the designated user—is using that user ID.System Administration Made Easy4–11