With Cloud Spanner, If One Region Goes Offline, Data Can Still Be Served From Another Region. How Does Cloud Spanner Make This Possible?

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With Cloud Spanner, If One Region Goes Offline, Data Can Still Be Served From Another Region. How Does Cloud Spanner Make This Possible?
  • Cloud Spanner captures up to a petabyte of data on one Transfer Appliance without impacting the outbound network.
  • Cloud Spanner stores and serves an unlimited number of objects and up to 5 terabytes of object data for each.
  • Cloud Spanner automates loading data into BigQuery from YouTube, AdWords, and DoubleClick.
  • Cloud Spanner uses synchronous replication within and across regions to achieve greater availability.