Method, device, and computer program product for extending partition of storage system

An electronic device, comprising:

• at least one processor;
• a volatile memory;
• and
• a memory coupled to the at least one processor, wherein the memory has instructions stored therein, the instructions, when executed by the at least one processor, cause the device to execute actions relating to partition extension for a storage system, the storage system comprises at least one partition, a partition of the at least one partition comprises a group of objects, and the actions comprise:
• dividing the group of objects into a first group of objects and a second group of objects;
• creating a first partition and a second partition based on the first group of objects and the second group of objects, wherein the first partition comprises the first group of objects, and the second partition comprises the second group of objects;
• obtaining a partition index of the partition, wherein a group of nodes comprised in the partition index respectively represents metadata of the group of objects;
• and
• generating a first partition index and a second partition index based on the partition index, wherein a first group of nodes comprised in the first partition index respectively represents metadata of the first group of objects, and a second group of nodes comprised in the second partition index respectively represents metadata of the first group of objects.

A computer program product tangibly stored on a non-transitory computer-readable medium and comprising machine-executable instructions for usage to perform partition extension in a storage system, wherein the storage system comprises partitions, a partition of the partitions comprises a group of objects, and wherein the machine-executable instructions are used to implement operations, comprising:

• dividing the group of objects into a first group of objects and a second group of objects;
• creating a first partition and a second partition based on the first group of objects and the second group of objects, wherein the first partition comprises the first group of objects, and the second partition comprises the second group of objects;
• obtaining a partition index of the partition, wherein a group of nodes comprised in the partition index respectively represents metadata of the group of objects;
• and
• generating a first partition index and a second partition index based on the partition index, wherein a first group of nodes comprised in the first partition index respectively represents metadata of the first group of objects, and a second group of nodes comprised in the second partition index respectively represents metadata of the first group of objects.