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Intelligent rolling upgrade for data storage systems

  • US 8,479,056 B2
  • Filed: 07/14/2011
  • Issued: 07/02/2013
  • Est. Priority Date: 11/02/2009
  • Status: Expired due to Fees
First Claim
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1. A method for facilitating upgrades in a computing storage environment by a processor in communication with a memory device, comprising:

  • selecting one of an available plurality of rolling upgrade policies registering at least one selectable upgrade parameter for an upgrade window;

    setting a node down tolerance factor for at least one node in the computing storage environment, wherein the node down tolerance factor specifies a percentage of elements of the at least one node taken offline to apply the selected one of the available plurality of rolling upgrade policies during the upgrade window;

    determining if a number of at least one of a plurality of nodes in the computing storage environment currently down, including a target node to be upgraded, does not exceed the node down tolerance factor; and

    if the node down tolerance factor has not been exceeded, checking a cluster health by checking a general parallel file system (GPFS) cluster quorum to determine if taking the target node to be upgraded offline does not break the GPFS quorum.

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