Method and system for allocating mirrored memories

A system for managing storage areas, the 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 system to execute a method for managing memories in a storage system comprising a first controller and a second controller, the method comprising:
• receiving, at the first controller, an allocation request from a second controller in the storage system, the allocation request issued in response to available storage spaces in the second memory being lower than a first threshold, the allocation request requiring to allocate available storage spaces from a first memory in the storage system to a second memory in the storage system for use by the second controller;
• and
• determining a candidate number of available storage spaces to be allocated from the first memory to the second memory based on first use status of the first memory, wherein the first use status indicates that available spaces in the first memory satisfy one or more conditions,
• wherein the first memory and the second memory are associated with the first controller and the second controller respectively, and the first memory and the second memory are mirrored memories.