1. What is System XVI?

System XVI, abbreviated S16, is a modern system resource manager for Linux and the BSD distros. It manages system resources, ensuring that they are kept running, self-repairing after faults, and providing the administrator with the information necessary to make appropriate repairs if an un-self-reparable error should occur.

It is designed in line with the Four Motives, which are detailed below:

1.1. The Four Motives

  • Interface Orientation: the system should be designed to fit a clean and stable interface. A well-designed interface makes for an obvious implementation.
  • Separation of Concerns: individual components should not do much alone, but work in concert to create a grand system.
  • Modularity: components should be easily replaceable and extensible.
  • Self-healing: components that crash should be able to restart without forgetting system state or otherwise causing breakage.

1.2. Flexibility

System XVI is generic. It has been designed to allow for the management of many different kinds of system resources in a uniform way. For example, it can manage background services like MongoDB or Node.js, chronological services like a regular temporary-file cleaner, internet services like vsftpd or telnetd, as well as other kinds of services.

Because it follows the Four Motives, all this is achieved in separate daemons; each implements one section of the grand concert of System XVI. The flexibility allows, for example, legacy unit-files from SystemD to be converted and ran by System XVI.

1.3. Fault-Tolerant

System XVI is fault-tolerant. If a resource should fail, System XVI will try to make that resource available again, restarting services as needed to restore its functionality. In the case a severe fault occurs which cannot be repaired automatically, a clear description of the fault will be assembled and made available to the administrator for their viewing.