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Snapshot acquisition method, storage system

  • US 20030229651A1
  • Filed: 10/24/2002
  • Published: 12/11/2003
  • Est. Priority Date: 03/22/2002
  • Status: Active Grant
First Claim
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1. A snapshot acquisition method in a storage system including a storage apparatus for storing data and a NAS processing apparatus that provides file service via a network and is connected via a communication path to the storage apparatus, the snapshot acquisition method comprising:

  • managing snapshots by the NAS processing apparatus;

    upon receiving at the NAS processing apparatus a data renewal request to renew data targeted for snapshot, issuing from the NAS processing apparatus a data copy instruction to the storage apparatus to copy the data targeted for snapshot; and

    preserving by the storage apparatus the data in a separate region based on the data copy instruction sent from the NAS processing apparatus.

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