Patent ID: 8782086
Filing Date: 2014-07-15
Classification: G06F,H04L

Abstract:
1. A method comprises: receiving, by each dispersed storage (DS) of a set of DS units of a distributed computing system, a corresponding one of a set of access requests regarding a set of error coded data slices, wherein a data segment is encoded using an error coding algorithm to produce the set of error coded data slices, wherein each DS unit of the set of DS units stores a corresponding error coded data slice of the set of error coded data slices, wherein the corresponding one of the set of access requests is regarding the corresponding error coded data slice of the set of error coded data slices; determining, via a computing core of each DS unit of the set of DS units, whether a local access control list is fresh with respect to the corresponding encoded data slices of the set of encoded data slices, wherein the local access control list includes access permissions; when, for one of the set of DS units, the local access control list is not fresh with respect to a corresponding one or more of the encoded data slices: verifying, by each of the DS units in the set of DS units, the corresponding one of the set of access requests in accordance with the access permissions of corresponding local access control lists; and executing, by the computing core of each of the DS units in the set of DS units, the corresponding one of the set of access requests regarding the corresponding error coded data slice when the corresponding one of the set of access requests are verified.