Invention Grant
- Patent Title: Method and apparatus to neutralize replication error and retain primary and secondary synchronization during synchronous replication
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Application No.: US17492944Application Date: 2021-10-04
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Publication No.: US11782783B2Publication Date: 2023-10-10
- Inventor: Akhil Kaushik , Anoop Chakkalakkal Vijayan
- Applicant: NetApp Inc.
- Applicant Address: US CA San Jose
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA San Jose
- Agency: COOPER LEGAL GROUP, LLC
- Main IPC: G06F16/27
- IPC: G06F16/27 ; G06F11/16 ; G06F11/07

Abstract:
Techniques are provided for neutralizing replication errors. An operation is executed upon a first storage object and is replicated as a replicated operation for execution upon a second storage object. A first error may be received for the replicated operation. Instead of transitioning to an out of sync state and aborting the operation, a wait is performed until a result of the attempted execution of the operation is received. If the first error is the same as a second error returned for the operation, then the operation and replicated operation are considered successful and a synchronous replication relationship is kept in sync. If the first error and the second error are different errors, then an error response is returned for the operation and the synchronous replication relationship is transitioned to out of sync.
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