Proactively removing channel paths in error from a variable scope of I/O devices

A method, comprising:

• detecting, with a processing device, a channel path error event on an identified channel path, wherein the identified channel path comprises a communication path between a processor and an input/output device;
• recording, by the processing device, channel path error data associated with the detected channel path error event comprising a two dimensional array having one or more rows that correspond to channel paths and one or more columns that correspond to time periods, wherein each element of the two dimensional array includes a counter configured to store a number of errors that occurred on the identified channel path associated with the element of the two dimensional array during the time period associated with the element of the two dimensional array;
• determining if an accelerated removal threshold has been met by determining if the counter in two or more time periods within a time interval for a channel path exceeds a threshold value;
• based on determining that the accelerated removal threshold has been met, removing the identified channel path between the processor and input/output device utilizing the identified channel based on determining that the accelerated removal threshold has not been met, determining if an error threshold has been met;
• based on determining that the error threshold has been met, identifying a scope of a channel path error associated with the identified channel path;
• and creating a list of devices affected by the channel path error, determining if the identified channel path is a defective channel path based on the scope of the channel path error.