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Systems and methods for security management of multi-client based distributed storage

  • US 9,871,816 B2
  • Filed: 04/21/2016
  • Issued: 01/16/2018
  • Est. Priority Date: 04/26/2015
  • Status: Active Grant
First Claim
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1. A method of maintaining a security risk level of data objects stored in a distributed system, comprising:

  • estimating a current security risk level of at least one storage unit of each of a plurality of network nodes based on real time monitoring;

    distributing a plurality of data objects among the at least one storage units of the plurality of network nodes according to the current security risk level such that a minimal security requirement of each data object is complied with;

    detecting a change in the current security risk level of the at least one storage unit;

    creating a new copy of at least one of the plurality of data objects stored on the at least one storage unit associated with the change in the current security risk level by reconstructing the new copy from redundancy data stored on at least one other node, for storage on a different network node such that the minimal security requirement of each data object of the plurality of data objects is maintained;

    wherein existing data segments on the at least one storage unit associated with the change in the current security risk level are not used to create the new copy; and

    wherein other segments related to other data objects of the plurality of data objects satisfying the change in the current security risk level are maintained on the at least one storage unit associated with the change in the current security risk level.

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