Patent ID: 9547555
Date: 2017-01-17
CPC Classifications: G06F

Claim:
1. A system comprising: one more processors; one or more computer-readable media having thereon computer-executable instructions that are structured such that when executed by the one or more processors, the computing system is caused perform a method for keeping track of changes amongst unit portions of a storage system, the method comprising: for each unit portion in the storage system, associating a logical time identifier with the unit portion; when writing to a particular write portion that includes one or more of the unit portions of the storage system, performing the following: an act of later verifying that the redundancy data is not consistent with the group of one or more logical time identifiers; and if the redundancy data is not consistent, assigning a more recent logical time identifier to each of the logical time identifiers in the group of one or more logical time identifiers in the logical time identifier structure, such that inconsistent write portions are treated as more recently written to when backing up.