Scheduling of reactive i/o operations in a storage environment

A method for use in a computing system, the method comprising:

• receiving read and write requests targeted to a data storage medium, the data storage medium comprising a plurality of storage devices configured to store data;
• scheduling said read and write requests for processing by said plurality of storage devices;
• and
• detecting a given device of the plurality of devices is exhibiting an unscheduled behavior comprising variable performance by one or more of the plurality of storage devices, wherein the variable performance comprises at least one of a relatively high response latency or relatively low throughput;
• and
• scheduling one or more reactive operations in response to detecting the occurrence of the unscheduled behavior, said one or more reactive operations being configured to cause the given device to enter a known state.

A computer readable storage medium comprising program instructions, wherein when executed by a processing device, the program instructions are operable to:

• receive read and write requests targeted to a data storage medium, the data storage medium comprising a plurality of storage devices configured to store data;
• schedule said read and write requests for processing by said plurality of storage devices;
• and
• detect a given device of the plurality of devices is exhibiting an unscheduled behavior comprising variable performance by one or more of the plurality of storage devices, wherein the variable performance comprises at least one of a relatively high response latency or relatively low throughput;
• and
• schedule one or more reactive operations in response to detecting the occurrence of the unscheduled behavior, said one or more reactive operations being configured to cause the given device to enter a known state.