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STORAGE CONTROLLER FAILOVER SYSTEM

  • US 20180107572A1
  • Filed: 12/13/2017
  • Published: 04/19/2018
  • Est. Priority Date: 02/19/2016
  • Status: Active Grant
First Claim
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1. A storage controller failover system, comprising:

  • a first storage controller;

    a second storage controller; and

    a controller system that is coupled to each of the first storage controller and the second storage controller, wherein the controller system is configured to;

    determine that the first storage controller that has provided first storage communications along a first path between a first server and a first storage subsystem has failed;

    determine that the second storage controller is configured to take over the first storage communications from the first storage controller;

    provide, in response to determining that the first storage controller has failed, a first storage controller cache for the first storage controller to the second storage controller; and

    cause the second storage controller to provide at least a first portion of the first storage communications along a second path between the first server and the first storage subsystem.

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