Storage management program, storage management method, and storage management apparatus

A storage management method for managing data stored in a plurality of storage nodes having storage devices in a distributed storage system, the storage management method comprising:

• collecting attributes of the storage nodes;
• classifying the storage nodes into at least two groups, including first and second groups, in accordance with the collected attributes of the storage nodes;
• and
• moving, upon detecting that two different storage devices respectively storing distributed data and redundant distributed data both belonging to the first group of storage nodes, either the distributed data or the redundant distributed data from the first group of storage nodes to the second group of storage nodes.

A storage management apparatus for managing data stored in a plurality of storage nodes having storage devices in a distributed storage system, the storage management apparatus comprising:

• a memory;
• a processor coupled to the memory, the processor executing a procedure comprising:
• collecting attributes of the storage nodes;
• classifying the storage nodes into at least two groups, including first and second groups, in accordance with the attributes of the storage nodes;
• and
• moving, upon detecting that two different storage devices respectively storing distributed data and redundant distributed data corresponding thereto both belonging to the first group of storage nodes, either the distributed data or the redundant distributed data from the first group of storage nodes to the second group of storage nodes.