Job schedulers automate tasks on computers, reducing the need for human intervention. They can be set to run at different intervals and are specialized for each operating system. Examples include cron jobs for UNIX and the task manager for Windows. Advanced programs like DRS are used in clustered IT environments.
Many computers are capable of using a job scheduler to perform automated tasks. This feature allows the computer to perform certain tasks automatically based on a schedule set by the computer user. A scheduler is typically specialized for each type of operating system (OS). It performs tasks in an automated way, reducing the need for human intervention.
You can set a scheduler to run at multiple time intervals. This provides system administrators with a tool that can schedule monthly or daily maintenance tasks. An example of a job within the scheduler is an achievement process. This is a process that moves old data to reach storage. Using a scheduled job to complete this task ensures that your computer system maintains adequate disk space.
Within the UNIX® operating system a job scheduler is generally known as a cron job. This is the master scheduler for UNIX®. It can run multiple types of programs including scripts, administrative tasks, and general operating system maintenance processes. The cron job uses a built-in timer similar to an alarm clock and runs tasks on a pre-defined schedule. This scheduling is managed in a special file within the operating system, which orchestrates all day-to-day activities.
The UNIX® job scheduler uses a special background process that handles scheduling. This program manager, often called a cron daemon, is responsible for reading the schedule and executing scripting programs on time. The program manager reviews the program once every minute. If new tasks are added to the schedule, it will usually run within 60 seconds of being added to the table.
The job scheduling program in the Windows® operating system is known as the task manager. The Windows® Task Scheduler can run scripts or programs that exist within your computer’s operating system. This makes it a great tool for managing your daily backups and maintenance tasks.
A Distributed Resource Scheduler (DRS) program is an example of an advanced job scheduling program. This program is designed for distributed software applications and has the ability to run programs based on job priority. This type of process is typically used in highly available clustered IT environments.
Protect your devices with Threat Protection by NordVPN
