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Multiple-apartment aware offlining of devices for disruptive and destructive operations

  • US 10,705,732 B1
  • Filed: 12/13/2017
  • Issued: 07/07/2020
  • Est. Priority Date: 12/08/2017
  • Status: Active Grant
First Claim
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1. A method comprising:

  • reserving a storage device, wherein the reservation causes a storage controller of a storage system to prevent other storage controllers of the storage system from accessing the storage device;

    stopping sending direction to the storage device to increment a heartbeat counter of the storage device;

    verifying the heartbeat counter of the storage device is static; and

    performing, responsive to the verifying, an operation on the storage device, with the storage device offline relative to the storage system I/O of user data.

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