SYSTEM AND METHOD FOR INCREMENTAL VIRTUAL MACHINE BACKUP USING STORAGE SYSTEM FUNCTIONALITY
First Claim
Patent Images
1. A computer-implemented method, comprising:
- receiving a request at a storage system for an incremental backup of a virtual machine (VM), the VM is hosted by a VM monitor (VMM) of a client, the request identifying a requested VM disk image associated with a consistent state of the VM;
determining a difference between the requested VM disk image and a previous VM disk image representing a previous VM backup; and
transmitting changes between the requested VM disk image and the previous VM disk image to a target backup storage system.
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Abstract
Techniques for virtual machine incremental backup are described herein. According to one embodiment, a request for an incremental backing up a virtual machine (VM) is received at a storage system, the request identifying a requested VM disk image associated with a consistent state of the VM. The storage system determines a difference between the requested VM disk image and a previous VM disk image representing a previous VM backup. The changes between the requested VM disk image and a previous VM disk image are then transmitted to a target backup storage system.
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Citations
23 Claims
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1. A computer-implemented method, comprising:
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receiving a request at a storage system for an incremental backup of a virtual machine (VM), the VM is hosted by a VM monitor (VMM) of a client, the request identifying a requested VM disk image associated with a consistent state of the VM; determining a difference between the requested VM disk image and a previous VM disk image representing a previous VM backup; and transmitting changes between the requested VM disk image and the previous VM disk image to a target backup storage system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A non-transitory computer-readable storage medium having instructions stored therein, which when executed by a processor, cause the processor to perform a method, the method comprising:
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receiving a request at a storage system for an incremental backup of a virtual machine (VM), the VM is hosted by a VM monitor (VMM) of a client, the request identifying a requested VM disk image associated with a consistent state of the VM; determining a difference between the requested VM disk image and a previous VM disk image representing a previous VM backup; and transmitting changes between the requested VM disk image and the previous VM disk image to a target backup storage system. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A storage system, comprising:
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a backup logic receives a request at a storage system for an incremental backup of a virtual machine (VM), the VM is hosted by a VM monitor (VMM) of a client, the request identifying a requested VM disk image associated with a consistent state of the VM; determines a difference between the requested VM disk image and a previous VM disk image representing a previous VM backup; and transmits changes between the requested VM disk image and the previous VM disk image to a target backup storage system. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification