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Failover mechanisms in RDMA operations

  • US 20060045005A1
  • Filed: 12/20/2004
  • Published: 03/02/2006
  • Est. Priority Date: 08/30/2004
  • Status: Active Grant
First Claim
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1. A method for recovery from failure in a node in a data processing system which includes said node and a communications adapter coupled to the node, said method comprising the steps of:

  • restarting said failed node and generating keys, for data packets to be transferred to said adapter, based on a random number seeded key generator;

    checking, by at least one of said adapters, that a key provided within data packet headers received by said at least one adapter matches a key loaded by a device driver into a table resident in the respective one of said nodes;

    dropping said packet if said checking indicates a failed match.

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