Data Spillover For Storage Arrays

An apparatus for data spillover for storage arrays, the apparatus comprising a computer processor, a computer memory operatively coupled to the computer processor, the computer memory having disposed within it computer program instructions that, when executed by the computer processor, cause the apparatus to carry out steps comprising:

• entering, by a source storage array, in response to determining that an amount of used capacity for the source storage array exceeds a first threshold, a spillover mode;
• redirecting, in response to the source storage array being in the spillover mode, write operations directed to the source storage array to a target storage array;
• and
• exiting the spillover mode by the source storage array, wherein exiting the spillover mode comprises updating data stored on the source storage array to reflect write operations redirected to the target storage array during the spillover mode.