Patent ID: 11880278
Assignee: HITACHI, LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. The storage system according to claim 1, wherein,
in a case in which a new virtual chunk is to be configured, the processor
selects respective virtual parcels, and moves mapping of the respective virtual parcels between the plurality of physical storage drives,
moves the respective virtual parcels included in the same virtual chunk to the k mutually different physical storage drives among the N (k<N) physical storage drives when the respective virtual parcels are moved between the plurality of physical storage drives, and
further moves the respective virtual parcels such that the maximum value of the numbers of the respective virtual parcels mapped to a particular physical storage drive to be housed in a same drive among the plurality of drive enclosures is equal to or smaller than a predetermined value.