DEDUPLICATION OF VIRTUAL MACHINE CONTENT

摘要

Methods and systems for managing, storing, and serving data within a virtualized environment are described. In some embodiments, a data management system may manage the extraction and storage of virtual machine snapshots, provide near instantaneous restoration of a virtual machine or one or more files located on the virtual machine, and enable secondary workloads to directly use the data management system as a primary storage target to read or modify past versions of data. The data management system may allow a virtual machine snapshot of a virtual machine stored within the system to be directly mounted to enable substantially instantaneous virtual machine recovery of the virtual machine.

主权项

1. A method for operating a data management system, comprising:
acquiring a first snapshot of a first virtual machine, the first snapshot comprises a full image of the first virtual machine; generating a signature for the first virtual machine using the full image, the generating a signature includes generating a plurality of hash values corresponding with a plurality of data blocks within the full image, the plurality of data blocks is arranged such that data blocks of a first plurality of the plurality of data blocks are spaced at a fixed distance from each other and data blocks of a second plurality of the plurality of data blocks are spaced at monotonically increasing distances from each other; identifying a second virtual machine based on the signature, the second virtual machine is associated with a base image; generating a dependent base file associated with the first snapshot using the full image and the base image; and storing the dependent base file.