Method, device, 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 and having instructions stored therein, wherein the instructions, when executed by the at least one processor, cause the electronic device to perform actions for managing stripes in a storage system, and the actions comprise:
• determining, based on a determination that a failed storage device appears in a first set of storage devices in the storage system, a failed stripe involving the failed storage device, the first set of storage devices being storage devices in a first redundant array of independent disks;
• determining, in the first set of storage devices, an idle space that can be used to reconstruct the failed stripe;
• reconstructing the failed stripe to a second set of storage devices in the storage system based on a determination that the idle space is insufficient to reconstruct the failed stripe, the second set of storage devices being storage devices in a second redundant array of independent disks;
• and
• releasing an extent in the failed stripe in the first set of storage devices.

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 set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of:
• determining, based on a determination that a failed storage device appears in a first set of storage devices in the storage system, a failed stripe involving the failed storage device, the first set of storage devices being storage devices in a first redundant array of independent disks;
• determining, in the first set of storage devices, an idle space that can be used to reconstruct the failed stripe;
• reconstructing the failed stripe to a second set of storage devices in the storage system based on a determination that the idle space is insufficient to reconstruct the failed stripe, the second set of storage devices being storage devices in a second redundant array of independent disks;
• and
• releasing an extent in the failed stripe in the first set of storage devices.