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Client and a server and methods thereof for data management relating to shared data storage

  • US 9,756,125 B2
  • Filed: 06/16/2011
  • Issued: 09/05/2017
  • Est. Priority Date: 06/16/2011
  • Status: Active Grant
First Claim
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1. A method in a client for seamlessly migrating a shared data storage from a first node to a second node, where the shared data storage is accessible to clients accessing the shared data storage during and after the migration, wherein the client comprises a first replica of the shared data storage associated with the first node to be used for operations on the shared data storage, the method comprising:

  • configuring, by a migration manager in the client, a second replica of the shared data storage associated with the second node;

    configuring, by the migration manager in the client, the first and the second replicas to be used for operations simultaneously during the migration from the first node and the second node;

    configuring, by the migration manager in the client, a virtual replica encapsulating the first and second replicas internally to provide a single interface towards applications operating on the shared data storage;

    receiving information, at the migration manager in the client, that the shared data storage associated with the first node is synchronized with the shared data storage associated with the second node, wherein the synchronization comprises applying operations performed on the first and second replicas to the shared data storage associated with the first node and the shared data storage associated with the second node; and

    based on the received information, configuring, by the migration manager in the client, the first and the second replicas to only use the second replica for operations on the shared data storage.

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