Zone group reassignment using storage device signatures
AssigneeHewlett-Packard Development Company, L.P.
InventorsMichael G Myrah, Balaji Natrajan, Sohail Hameed, Lijun Qin
Life of this patent
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Abstract
A method and apparatus for assigning zone groups to a storage enclosure is disclosed. When a storage enclosure is added to a switch in a fabric, a signature of the storage enclosure will be created from the storage devices loaded in that enclosure. The signature will then be compared against the signature from a storage enclosure that is offline. When the signature matches the signature of the offline storage enclosure, the zone groups from the offline storage enclosure will be copied to the storage enclosure that was added to the fabric.
Claims14
A method for assigning zone groups to a physical storage enclosure, comprising:
- detecting when the physical storage enclosure is added to a fabric;
- creating a signature from each storage device in the physical storage enclosure;
- comparing the signature against the signature of a physical storage enclosure that is offline;
- when the created signature matches the signature of the offline storage enclosure, copying zone groups from the offline storage enclosure to the physical storage enclosure that was added to the fabric.
A switch, comprising:
- a plurality of input ports and a plurality of output ports;
- logic for controlling access between the plurality of input ports and the plurality of output ports, the logic limiting access from the input ports to the output ports based on a zone group record;
- wherein the zone group record comprises:
- a list of input ports that are included in each zone group;
- and
- at least one storage enclosure record comprising:
- a storage enclosure logical ID;
- a listing of drive bays in the storage enclosure, the zone groups associated with each drive bay and a signature of a storage device loaded in each of the drive bays;
- and
- logic to, in response to detecting a new storage enclosure being coupled to one of the plurality of output ports;
- create a signature from each storage device loaded in the new storage enclosure;
- compare the signature of the new storage enclosure with the signature of an offline storage device:
- and
- copy all zone groups from the offline storage device to the new storage device if the new storage enclosure matches the signature of the offline storage device.
A switch, comprising:
- a plurality of input ports and a plurality of output ports;
- means for controlling access between the plurality of input ports and the plurality of output ports, the means for controlling access limiting access from the input ports to the output ports based on a zone group record;
- wherein the zone group record comprises:
- a list of input ports that are included in each zone group;
- and
- at least one storage enclosure record comprising:
- a storage enclosure logical ID;
- a listing of drive bays in the storage enclosure, the zone groups associated with each drive bay and a signature of a storage device loaded in each of the drive bays;
- and
- means for, in response to detecting a new storage enclosure being coupled to one of the plurality of output ports:
- create a signature from each storage device loaded in the new storage enclosure;
- compare the signature of the new storage enclosure with the signature of an offline storage device:
- and
- copy all zone groups from the offline storage device to the new storage device if the new storage enclosure matches the signature of the offline storage device.
Dependencies are inferred from the claim text.