Patent ID: 8364858

Claim:
A method of storage management in a storage pool having a plurality of pool members, comprising: collecting utilization statistics of the storage pool; determining an average utilization level of the storage pool; classifying at least some of the plurality of pool members according to the average utilization level, wherein the classified pool members of the plurality of pool members are classified as one of: source members, target members and neutral members; selecting stored data from among the classified pool members; scheduling at least a portion of the selected data to be moved from at least a first one of the classified pool members to at least a second one of the classified pool members; and moving the scheduled portion of the selected data from the first one of the classified pool members to the second one of the classified pool members, wherein the neutral members have a utilization level that is within a tolerance range of the average utilization level, wherein the source members have a utilization level that exceeds the average utilization level and outside the tolerance range, and wherein the target members have a utilization level that is below the average utilization level and outside the tolerance range.