×

Storage array snapshots for logged access replication in a continuous data protection system

  • US 9,323,750 B2
  • Filed: 11/26/2012
  • Issued: 04/26/2016
  • Est. Priority Date: 09/29/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method utilizing at least one computing device for access replication, wherein the method comprising:

  • providing a continuous data protection system comprising a data protection appliance, a splitter and source volumes on a source side that are replicated to target volumes of a storage array on a target side by using a journal of write transactions;

    enabling, in an image access mode, a rolling back of the target volumes on the target side from a first point in time to a selected point in time so that the target volumes contain data for the selected point in time, the selected point in time being earlier than the first point in time, the rolling back comprising undoing the write transactions in the journal subsequent to the selected point in time;

    enabling generation of a virtual snapshot of the target volumes for the selected point in time after rolling back the target volumes to the selected point in time using the journal; and

    enabling a user to access the virtual snapshot in the storage array at the selected point in time.

View all claims
  • 9 Assignments
Timeline View
Assignment View
    ×
    ×