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AssigneeVMware, Inc.
InventorsChristos KARAMANOLIS, Matthew Benjamin AMDUR, Patrick William Penzias DIRKS
Estimating the term…
Snapshots that are consistent across a group of data objects are generated. The snapshots are initiated by a coordinator, which transmits a sequence of commands to each storage node hosting a data object within a group of data objects. The first command prepares a data object for a snapshot. After a data object has been successfully prepared, an acknowledgment is sent to the coordinator. Once all appropriate acknowledgments are received, the coordinator sends a command to confirm that a snapshot has been created for each data object in the respective group. After receiving this confirmation, the coordinator takes action to confirm or record the successful completion of the group-consistent snapshot.
A method for coordinating snapshots for multiple data objects, comprising:
A method for coordinating snapshots for multiple data objects, comprising:
A system for generating group-consistent snapshots, comprising at least one storage node managing at least a first data object and a second data object, wherein said at least one storage node is programmed to block new I/O operations issued to the first and second data objects, complete pending I/O operations associated with the first and second data objects, and then create a snapshot of the first and second data objects, upon receiving a command to generate group-consistent snapshots.
A system for generating group-consistent snapshots, comprising at least one storage node managing at least a first data object and a second data object, wherein said at least one storage node is programmed to block completion of I/O operations issued to the first and second data objects and then create a snapshot of the first and second data objects, upon receiving a command to generate group-consistent snapshots.
Dependencies are inferred from the claim text.