Patent ID: 9058117
Filing Date: 2015-06-16
Classification: G06F

Abstract:
1. A system for storing a single instance of a block of data in a data storage network, wherein the data storage network includes multiple storage devices coupled via a computer network, and wherein the computer network also couples to one or more computing devices having file systems on which files are stored, the system comprising: one or more storage devices storing multiple blocks of data in one or more container files, wherein a file stored on a file system of a computing device is comprised of one or more blocks of data; one or more single instance databases storing, for at least some of the multiple blocks of data, an identifier of the stored block of data, and a location of the stored block of data in a container file; one or more index files storing, for at least some of the multiple blocks of data, a single flag indicating whether the stored block of data is referred to in one or more metadata files on the one or more storage devices; and a secondary storage computing device configured to—