{
  "patent_number": "US 9811430",
  "country": "US",
  "title": "How to Keep Backup Data in the Correct Order",
  "original_title": "Method and system for incremental backup of data volumes",
  "summary": "A method for ensuring that backup data arrives at a secondary storage location in the exact same sequence it was created at the primary location to prevent data corruption.",
  "what_it_does": "This patent describes a system for synchronizing data between a primary computer and a backup (secondary) computer. It uses a specific architecture where a primary node maintains three distinct areas: the main data storage, a primary log storage area (SRL) for tracking updates, and a separate backup storage area that keeps a redundant copy of those logs. When updates happen, the system ensures they are written to both the log and the backup storage at the primary site before being sent to the secondary site. By maintaining this strict sequence, the secondary node can apply the updates in the exact same order they occurred, ensuring the backup remains a perfect, consistent mirror of the primary data.",
  "what_it_does_not_cover": [
    "Does not cover systems that replicate data without maintaining a strict chronological sequence of updates.",
    "Does not cover backup methods that do not utilize a dedicated log storage area (SRL) at the primary node.",
    "Does not cover data synchronization that occurs without the use of a secondary replication storage group (RSG)."
  ],
  "filed": "2010-04-02",
  "granted": "2017-11-07",
  "expires": null,
  "status": "active",
  "holder": "Veritas Technologies LLC",
  "holder_url": "https://patentbrief.org/company/veritas-technologies-llc",
  "inventors": [
    {
      "name": "Pradip Kulkarni",
      "url": "https://patentbrief.org/inventor/pradip-kulkarni"
    },
    {
      "name": "Niranjan S. Pendharkar",
      "url": "https://patentbrief.org/inventor/niranjan-s-pendharkar"
    },
    {
      "name": "Angshuman Bezbaruah",
      "url": "https://patentbrief.org/inventor/angshuman-bezbaruah"
    }
  ],
  "times_cited": 4,
  "tags": [
    "software",
    "telecommunications",
    "finance"
  ],
  "abstract": "A method and system for incremental backup is disclosed. The method includes writing a first update to a secondary node and writing a second update to the secondary node. The secondary node comprises a replication storage group (RSG). Further, the order in which the updates are written at the secondary node is consistent with the order in which the updates were written at a primary node.",
  "url": "https://patentbrief.org/patent/us/9811430/aws-codepipeline",
  "markdown_url": "https://patentbrief.org/patent/us/9811430/aws-codepipeline/md",
  "google_patents_url": "https://patents.google.com/patent/US9811430",
  "relatedPatents": []
}