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drivers/ras/Kconfig 1.43 KB
81f7e3824   Eric Lee   Initial Release, ...
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  menuconfig RAS
  	bool "Reliability, Availability and Serviceability (RAS) features"
  	help
  	  Reliability, availability and serviceability (RAS) is a computer
  	  hardware engineering term. Computers designed with higher levels
  	  of RAS have a multitude of features that protect data integrity
  	  and help them stay available for long periods of time without
  	  failure.
  
  	  Reliability can be defined as the probability that the system will
  	  produce correct outputs up to some given time. Reliability is
  	  enhanced by features that help to avoid, detect and repair hardware
  	  faults.
  
  	  Availability is the probability a system is operational at a given
  	  time, i.e. the amount of time a device is actually operating as the
  	  percentage of total time it should be operating.
  
  	  Serviceability or maintainability is the simplicity and speed with
  	  which a system can be repaired or maintained; if the time to repair
  	  a failed system increases, then availability will decrease.
  
  	  Note that Reliability and Availability are distinct concepts:
  	  Reliability is a measure of the ability of a system to function
  	  correctly, including avoiding data corruption, whereas Availability
  	  measures how often it is available for use, even though it may not
  	  be functioning correctly. For example, a server may run forever and
  	  so have ideal availability, but may be unreliable, with frequent
  	  data corruption.
  
  if RAS
  
  source arch/x86/ras/Kconfig
  
  endif