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US 9,176,827 B2Granted
Adaptive quiesce for efficient cross-host consistent CDP checkpoints
AssigneeZerto Ltd.
InventorsAmir Boldo, Ori Mamluk, Chen Burshan
Life of this patent
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AssigneeZerto Ltd.
InventorsAmir Boldo, Ori Mamluk, Chen Burshan
Estimating the term…
A disaster recovery system, including a target datastore for replicating data written to source datastores, and a checkpoint engine (i) for transmitting, at multiple times, quiesce commands to a plurality of host computers, each quiesce command including a timeout period that is adjusted at each of the multiple times, (ii) for determining, at each of the multiple times, whether acknowledgements indicating that a host has successfully stopped writing enterprise data to the source datastores, have been received from each of the host computers within the timeout period, (iii) for marking, at each of the multiple times, a cross-host checkpoint in the target datastore and reducing the timeout period for the quiesce commands at the next time, if the determining is affirmative, and (iv) for increasing, at each of the multiple times, the timeout period for the quiesce commands transmitted at the next time, if the determining is not affirmative.
A method for generating cross-host consistent checkpoints for disaster recovery systems, comprising:
A disaster recovery system for providing continuous data protection to an enterprise, the enterprise comprising a plurality of host computers operative to read enterprise data from source datastores and write enterprise data to source datastores, comprising:
Dependencies are inferred from the claim text.