Method, device and computer program product for managing storage pool

An electronic device, comprising:

• at least one processing unit;
• and
• at least one memory coupled to the at least one processing unit and storing instructions configured to be executed by the at least one processing unit, wherein the instructions, when executed by the at least one processing unit, cause the device to perform actions comprising:
• if it is detected that a storage pool fails, determining a number of failed storage devices in the storage pool;
• if it is determined that the number reaches a threshold number, determining whether redundancy of the storage pool can be increased, the redundancy indicating the number of failed storage devices allowed without causing data loss in the storage pool;
• and
• if it is determined that the redundancy of the storage pool can be increased, adjusting at least part of a storage space for storing user data of the storage pool to a spare space of the storage pool to store data in a storage device that fails in the future.

A computer program product having a non-transitory computer readable medium which stores a set of instructions to manage a storage pool;

• the set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of:
• in response to detecting failure of a storage pool, determining a number of failed storage devices in the storage pool;
• in response to the number of failed storage devices in the storage pool reaching a threshold number, determining whether redundancy of the storage pool can be increased, the redundancy indicating the number of failed storage devices allowed without causing data loss in the storage pool;
• and
• in response to determining that the redundancy of the storage pool can be increased, adjusting at least part of a storage space for storing user data of the storage pool to a spare space of the storage pool to store data in a storage device that fails in the future.