Method, apparatus, and storage medium for managing stripe in storage system

An electronic device, comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor, the memory having instructions stored therein, when executed by the at least one processor, the instructions cause the device to execute actions for managing stripes in a storage system, the storage system comprising a plurality of storage devices, and the actions comprising:
• for each storage device in the plurality of storage devices, determining a device correlation of the storage device according to a request for creating a stripe in the storage system, at least in part by determining a correlation between the storage device and each other storage device in the plurality of storage devices equal to a number of stripes which involve both the storage device and the other storage device, wherein the device correlation of each storage device in the plurality of storage devices comprises a sum of the correlations determined between that storage device and the other storage devices in the plurality of storage devices;
• selecting one storage device from the plurality of storage devices based on the determined device correlations;
• and
• adding one extent in the selected storage device to the stripe.

A computer program product having a non-transitory computer readable medium which stores a set of instructions to manage stripes in a storage system, the storage system comprising a plurality of storage devices;

• the set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of:
• for each storage device in a plurality of storage devices, determining a device correlation of the storage device according to a request for creating a stripe in the storage system, at least in part by determining a correlation between the storage device and each other storage device in the plurality of storage devices equal to a number of stripes which involve both the storage device and the other storage device, wherein the device correlation of each storage device in the plurality of storage devices comprises a sum of the correlations determined between that storage device and the other storage devices in the plurality of storage devices;
• selecting one storage device from the plurality of storage devices based on the determined device correlations;
• and
• adding one extent in the selected storage device to the stripe.