Patent ID: 9571577
Date: 2017-02-14
CPC Classifications: G06F,H04L

Claim:
1. A method comprises: establishing, by a managing unit of a dispersed storage network (DSN), an access policy that designates, for a first group of user devices, a first read time window for reading data from storage units of the DSN, a first write time window for writing data to the storage units of the DSN, and a read-write time window, wherein the read-write time window allows for reading of data from the storage units and writing of data to the storage units, wherein the read-write time window at least partially overlaps, in time, one or more of the first read time window and the first write time window; making available, by the managing unit, the access policy to the first group of user devices and to the storage units; receiving, by a storage unit of the storage units, an access request from a user device of the first group of user devices; determining, by the storage unit, whether the access request is received within the first read time window or the read-write time window when the access request is a read request or whether the access request is received within the first write time window or the read-write time window when the access request is a write request; when the access request is the read request and is received within the first read time window or the read-write time window, generating, by the storage unit, a read response that includes one or more requested encoded data slices; and when the access request is the write request and is received within the first write time window or the read-write time window, processing, by the storage unit, the write request to store one or more new encoded data slices.