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Storage System

  • US 20090228532A1
  • Filed: 05/28/2008
  • Published: 09/10/2009
  • Est. Priority Date: 03/07/2008
  • Status: Active Grant
First Claim
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1. A storage system to which a plurality of servers that manage data stored in a plurality of volumes is connected via a network, the servers exchanging data via the network, wherein:

  • the servers each include a first volume for storing data for a file and a second volume for storing data relating to the file; and

    in the servers, a migration-source server managing a file as a target for a request from a client connected to the network transfers the file data stored in the first volume and the data stored in the second volume to a migration-destination server, the migration-destination server reconstructs, based on the transferred data, snapshot volume data that is virtually constructed from a file image at a certain time in the past for the file stored in the first volume, and transfers to the client, based on the request from the client, response information for responding to the request from the client.

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