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Persistent memory device for backup process checkpoint states

  • US 20050132250A1
  • Filed: 12/16/2003
  • Published: 06/16/2005
  • Est. Priority Date: 12/16/2003
  • Status: Active Grant
First Claim
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1. A system for storing checkpoint state information, comprising:

  • a network interface to an external network; and

    a persistent memory unit coupled to the network interface, wherein;

    the persistent memory unit is configured to receive the checkpoint data via a direct memory write command from a primary process, and to provide access to the checkpoint data via a direct memory read command from a backup process, through the network interface; and

    the backup process provides recovery capability in the event of a failure of the primary process.

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