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US 9,405,765 B1Granted
Replication of virtual machines
AssigneeEMC Corporation
InventorAssaf Natanzon
Life of this patent
Estimating the term…
Abstract
In one aspect, a method includes intercepting, at a file system level, an I/O directed to a file representing a virtual volume to be replicated to a replica volume at a replica site, translating a file offset of the file to a volume offset of the replica volume; and replicating the I/O to a replica volume using the volume offset.
Claims19
A method comprising:
- intercepting, at a file system level, an I/O directed to a file offset of a first file stored at a first host, a virtual volume being stored as the first file;
- translating the file offset of the first file to a volume offset within a replica virtual volume stored as a second file on a second host;
- and
- replicating the I/O to the replica volume at the second host using the volume offset.
1 more element
An apparatus, comprising:
- electronic hardware circuitry configured to:
- intercept, at a file system level, an I/O directed to a file offset of a first file stored at a first host, a virtual volume being stored as the first file;
- translate the file offset of the first file to a volume offset within a replica virtual volume stored as a second file on a second host;
- and
- replicate the I/O to the replica volume at the second host using the volume offset.
2 more elements
An article comprising:
- a non-transitory computer-readable medium that stores computer-executable instructions, the instructions causing a machine to:
- intercept, at a file system level, an I/O directed to a file offset of a first file stored at a first host, a virtual volume being stored as the first file;
- translate the file offset of the first file to a volume offset within a replica virtual volume stored as a second file on a second host;
- and
- replicate the I/O to the replica volume at the second host using the volume offset.
2 more elements
Dependencies are inferred from the claim text.