Cohesity, Inc.

Shobhit Agarwal

Kishan Venkata Sravan Nerella

Chinmaya Manjunath

Manvendra Singh Tomar

Shubham Arvind Barai

Himanshu Mehra

Ashish Patwardhan

A stream of data changes to content of an object associated with a source system is received. A hot standby version of at least a portion of the object maintained at a recovery system is updated by streaming the received stream of data changes to the recovery system. It is determined that a gap exists in the stream of data changes. In response to determining that the gap exists in the stream of data changes, a reference snapshot is requested from the source system. A current state of the hot standby version of at least the portion of the object maintained at the recovery system is caused to be updated to a state of the portion of the object associated with the reference snapshot.

Standbys for continuous data protection-enabled objects

A remote data recovery system is determined to be unsuitable for communications. A stream of source system storage changes associated with an object is received at a backup system from a source system while the remote data recovery system is unsuitable for communications. The backup system is utilized to generate one or more reference restoration points based on the stream of source system storage changes associated with the object. The remote data recovery system is determined to be suitable for communications. In response to determining that the remote data recovery system is suitable for communications, a hot standby of the object hosted by the remote data recovery system is updated to a reference restoration point generated by the backup system prior to the remote data recovery system becoming suitable for communications.

Using a stream of source system storage changes to update a continuous data protection-enabled hot standby

A set of data changes to a storage associated with a source system is received. for recording the received set of changes, one or more data logs among a plurality of data logs stored in different nodes of a storage system is dynamically selected based at least in part on a dynamic analysis of metrics of the different nodes of the storage system. The data changes are logged in the one or more selected data logs. A reference to a portion of the one or more selected data logs associated with storing the data changes is recorded in a locator register log.

Distributed journal for high performance continuous data protection

A reference snapshot of a storage is stored. Data changes that modify the storage are received. The data changes are captured by a write filter of the storage. The received data changes are logged. The data changes occurring after an instance time of the reference snapshot are applied to the reference snapshot to generate a first incremental snapshot corresponding to a first intermediate reference restoration point. The data changes occurring after an instance time of the first incremental snapshot are applied to the first incremental snapshot to generate a second incremental snapshot corresponding to a second intermediate reference restoration point.

Continuous data protection using a write filter

Content of an object of a source system for backup is received at a backup system different from the source system. A standby version of at least a portion of the object of the source system is maintained at a recovery system. A backup of the received content is performed using the backup system. In response to a request to place the standby version at a specified recovery time point, backup data utilized in updating the standby version to the specified recovery time point is provided to the recovery system via the backup system.

A stream of source system storage changes associated with an object are received at a backup system from a source system. The source system storage changes associated with the object are provided to a remote data recovery system. The remote data recovery system is configured to store the provided source system storage changes associated with the object. The backup system is utilized to generate one or more reference restoration points based on the stream of source system storage changes associated with the object.

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San Jose, CA, United States of America

Shobhit Agarwal