Method, system, and program for expanding the storage space in an array of storage units
AssigneeInternational Business Machines Corporation
InventorsDavid Alan Burton, Robert Louis Morton
Life of this patent
Estimating the term…
Abstract
Implementations describe the expansion of storage space in an array of storage units. The storage space formed by the storage units is configured as logical units to store data. Storage units are added to the array to form an expanded storage space. The storage units in the array prior to the addition of the storage units are in a pre-expansion storage space. At least one additional logical unit is configured in the expanded storage space such that the logical units existing prior to the addition of the storage units in the pre-expansion storage space are not affected by the logical units configured in the expanded storage space.
Claims24
A method for expanding storage space in an array of storage units, wherein the storage space formed by the storage units is configured as logical units to store data, comprising:
- adding storage units to the array to form an expanded storage space, wherein the storage units in the array prior to the addition of the storage units are in a pre-expansion storage space;
- configuring at least one additional logical unit in the expanded storage space, wherein a configuration of the logical units existing prior to the addition of the storage units in the pre-expansion storage space is not affected by the logical units configured in the expanded storage space.
A system for expanding storage space, comprising:
- an array of storage units, wherein the storage space is formed by the storage units and configured as logical units to store data;
- means for adding storage units to the array to form an expanded storage space, wherein the storage units in the array prior to the addition of the storage units are in a pre-expansion storage space;
- means for configuring at least one additional logical unit in the expanded storage space, wherein a configuration of the logical units existing prior to the addition of the storage units in the pre-expansion storage space are is not affected by the logical units configured in the expanded storage space.
An electronically accessible information bearing medium including code for use in expanding a storage space in an array of storage units, wherein the storage space formed by the storage units is configured as logical units to store data, wherein the code is capable of causing a processor to perform:
- adding storage units to the array to form an expanded storage space, wherein the storage units in the array prior to the addition of the storage units are in a pre-expansion storage space;
- and
- configuring at least one additional logic unit in the expanded storage space, wherein a configuration of the logical units existing prior to the addition of the storage units in the pre-expansion storage space is not affected by the logical units configured in the expanded storage space.
Dependencies are inferred from the claim text.