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Method and apparatus for centralized management of a storage virtualization engine and data services
| Details |
Inventors: Mandal, Chhandomay; Dancus, Andrei A.; Zuluaga, Juan C.; Gill, Peter; DaSilva, Rowan E.;
Assignee: Sun Microsystems, Inc. (Santa Clara, CA)
Primary Examiner: Le; Uyen
Assistant Examiner:
Attorney, Agent or Firm: Dorsey & Whitney LLP
SVE management software uses management software running at a central service processor to control storage virtualization engines operating in a plurality application programming interface (API) that allows a consistent control of all SVE facilities by means of a set of API commands. The management software controls a dispatch module that translates the commands into appropriate instructions for the SVE nodes and communicates with the remote SVE nodes by a plurality of node client-node server pairs that transfer instructions from the dispatch module to the remote nodes and transfer requested information back from the remote nodes to the dispatch module. Various interfaces, such as a command line interpreter and a CIM provider can be built using the API commands. |
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DETAILED DESCRIPTION In accordance with the principles of the invention, an SVE control system uses management software at a central service processor to control data services and a storage virtualization engine consisting of volume managers operating in a plurality of remote SVE nodes.
Although each volume manager manages storage in the SVE node where it is located and maintains a view of the system from that standpoint, the management software coordinates all volume managers in order to ensure that the managers maintain consistent internal views of the physical storage.
In this manner, although the physical storage is located at a plurality of nodes, it appears as a virtual storage pool.
In particular, in one embodiment, the management software provides an application programming interface (API) that allows a consistent control of all SVE facilities by means of a set of API commands.
The management software further translates the commands into appropriate instructions for the SVE nodes and maintains synchronization of information in the memory of each SVE node with persistently stored information in system configuration databases.
Additionally, the management software aggregates this information and provides access to it through API methods.
In another embodiment, a dispatch module communicates with each remote SVE node by a node client-node server pair that transfers instructions from the dispatch module to that remote node and transfers state information back from that remote node to the dispatch module.
In turn, each client is comprised of a further plurality of service clients and each server is comprised of a further plurality of corresponding service servers.
Each service client and service server pair controls a specific data service or a volume manager at the remote node to provide storage control and data services at the node.
The dispatch module, in response to a command coordinates the communication of the instructions to each SVE-node in order to ensure that the nodes maintain consistent internal views of the physical storage so that the volume managers, taken together, act as a storage virtualization engine
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