The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
Apr. 04, 2016
Vmware, Inc., Palo Alto, CA (US);
Tal Zamir, Haifa, IL;
VMware, Inc., Palo Alto, CA (US);
Abstract
Techniques disclosed herein provide an approach for creating snapshots and reverting to the same for virtual machine (VM) guest operating systems (OSes). In one embodiment, a snapshot module in a guest OS receives blocks for a snapshot of a guest OS volume. In turn, the snapshot module creates a snapshot file in a repository external to a virtual disk of the VM, and writes the received blocks to the external repository. By storing snapshot content outside the virtual disks of VMs, disk space limitations in local VM disks can be overcome, and it is also more difficult for malicious software to modify the snapshots and infect them. To reduce storage space requirements, snapshots stored in the external repository may be deduplicated with other snapshots stored therein, including snapshots from guest OSes running in other VMs and/or a host OS on which a hosted hypervisor runs.