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METHOD AND SYSTEM FOR TRANSPARENTLY REPLACING NODES OF A CLUSTERED STORAGE SYSTEM

  • US 20150046745A1
  • Filed: 08/07/2013
  • Published: 02/12/2015
  • Est. Priority Date: 11/25/2009
  • Status: Active Grant
First Claim
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1. A machine-implemented method for replacing a first node and a second node of a clustered storage system by a third node and a fourth node, comprising:

  • non-disruptively, migrating storage objects managed by the first node to the second node;

    replacing the first node by the third node and migrating the storage objects managed by the first node and the second node to the third node; and

    replacing the second node by the fourth node and then migrating the storage objects previously managed by the second node but currently managed by the third node to the fourth node;

    wherein access to data previously managed by the first node and the second node is available while the first node and the second node are being replaced.

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