Method and device for managing storage system

A device for managing a storage system, comprising:

• one or more processors;
• a memory coupled to at least one processor of the one or more processors;
• computer program instructions stored in the memory which, when executed by the at least one processor, cause the device to execute a method for managing a storage system, the method comprising:
• obtaining a state record on utilization of a resource pool for creating the storage system, the resource pool comprising a first number of storage devices, the state record comprising a time sequence in which extents in the first number of storage devices are selected to create the storage system;
• selecting extents from the first number of storage devices to create the storage system according to the state record;
• updating the state record on the basis of the selected extents;
• and
• determining a predefined number of stripes to be comprised in the storage system;
• and
• wherein selecting the extents from the first number of storage devices to create the storage system comprises:
• according to the state record, selecting extents from the first number of storage devices to create stripes in the storage system until the number of stripes in the storage system meets the predefined number of the stripes.

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

• the set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of:
• obtaining a state record on utilization of a resource pool for creating the storage system, the resource pool comprising a first number of storage devices, the state record comprising a time sequence in which extents in the first number of storage devices are selected to create the storage system;
• selecting extents from the first number of storage devices to create the storage system according to the state record;
• updating the state record on the basis of the selected extents;
• and
• determining a predefined number of stripes to be comprised in the storage system;
• and
• wherein selecting the extents from the first number of storage devices to create the storage system comprises:
• according to the state record, selecting extents from the first number of storage devices to create stripes in the storage system until the number of stripes in the storage system meets the predefined number of the stripes.