A fixed content system for managing archival storage of fixed content in the fixed content system, comprising: one or more nodes (202; 300; 410) for storing a plurality of archive objects of fixed content, wherein fixed content refers to any type of digital information that is expected to be retained without change for reference or other purposes, each of the nodes having a processor and being coupled to a storage system having a plurality of storage media on which first logical disk units as a first tier and second logical disk units as a second tier are created; the processor being configure to: - protect the fixed content in the fixed content system by storing, for each of the plurality of archive objects (A, B, C), a plurality of copies (A1, A2; B1, B2; C1, C2) across the first logical disk units including a primary copy (A1; B1; C1) of the respective archive object (A; B; C) and one or more protection copies of the respective archive object (A; B; C) based on a data protection level of the content according to a service plan which indicates that protection copies are to be placed on the first logical disk units, the number of protection copies (A1, A2; B1, B2; C1, C2) of each archive object (A; B; C) being defined based on the data protection level of the respective object (A; B; C) indicated in the service plan; and - move, if a used capacity of one or more of the first logical disk units exceeds a capacity threshold, all of the plurality of copies (B2; C2) but one copy (B1; C1) of a respective archive object (B; C) from first logical disk units, for which the used capacity exceeds the capacity threshold, to the second logical disk units, and maintaining the remaining primary copy of the respective archive object (B; C) in the first logical disk units; wherein copies of a respective archive object in the second logical disk units are moved back to the first logical disc units when the service plan indicating storage tiering policies is changed for the respective archive object and the respective archive object no longer meets the criteria under the changed service plan. one or more nodes (202; 300; 410) for storing a plurality of archive objects of fixed content, wherein fixed content refers to any type of digital information that is expected to be retained without change for reference or other purposes, each of the nodes having a processor and being coupled to a storage system having a plurality of storage media on which first logical disk units as a first tier and second logical disk units as a second tier are created; the processor being configure to: - protect the fixed content in the fixed content system by storing, for each of the plurality of archive objects (A, B, C), a plurality of copies (A1, A2; B1, B2; C1, C2) across the first logical disk units including a primary copy (A1; B1; C1) of the respective archive object (A; B; C) and one or more protection copies of the respective archive object (A; B; C) based on a data protection level of the content according to a service plan which indicates that protection copies are to be placed on the first logical disk units, the number of protection copies (A1, A2; B1, B2; C1, C2) of each archive object (A; B; C) being defined based on the data protection level of the respective object (A; B; C) indicated in the service plan; and - move, if a used capacity of one or more of the first logical disk units exceeds a capacity threshold, all of the plurality of copies (B2; C2) but one copy (B1; C1) of a respective archive object (B; C) from first logical disk units, for which the used capacity exceeds the capacity threshold, to the second logical disk units, and maintaining the remaining primary copy of the respective archive object (B; C) in the first logical disk units; - protect the fixed content in the fixed content system by storing, for each of the plurality of archive objects (A, B, C), a plurality of copies (A1, A2; B1, B2; C1, C2) across the first logical disk units including a primary copy (A1; B1; C1) of the respective archive object (A; B; C) and one or more protection copies of the respective archive object (A; B; C) based on a data protection level of the content according to a service plan which indicates that protection copies are to be placed on the first logical disk units, the number of protection copies (A1, A2; B1, B2; C1, C2) of each archive object (A; B; C) being defined based on the data protection level of the respective object (A; B; C) indicated in the service plan; and - move, if a used capacity of one or more of the first logical disk units exceeds a capacity threshold, all of the plurality of copies (B2; C2) but one copy (B1; C1) of a respective archive object (B; C) from first logical disk units, for which the used capacity exceeds the capacity threshold, to the second logical disk units, and maintaining the remaining primary copy of the respective archive object (B; C) in the first logical disk units; wherein copies of a respective archive object in the second logical disk units are moved back to the first logical disc units when the service plan indicating storage tiering policies is changed for the respective archive object and the respective archive object no longer meets the criteria under the changed service plan.