Methods and storage nodes to decrease delay in resuming input output (I/O) operations after a non-disruptive event for a storage object of a distributed storage system by utilizing asynchronous inflight replay of the I/O operations

A non-transitory computer-readable storage medium embodying a set of instructions, which when executed by a processing resource of a storage node cause the processing resource to:

• maintain state information regarding a data replication status for a storage object of a primary storage cluster with the storage object being replicated to a replicated storage object of a secondary storage cluster;
• temporarily disallow input/output (I/O) operations for the storage object when the storage object of the primary storage cluster has a connection loss or failure, which causes an out of sync state (OOS) for the storage object of the primary storage cluster;
• initiate a resynchronization between the storage object and the replicated storage object based on the OOS state with the resynchronization including initiating asynchronous inflight tracking and replay of any missing I/O operations that are missing from one of a first Op log of the primary storage cluster and a second Op log of the secondary storage cluster;
• and
• allow new I/O operations to be handled with the storage object of the primary storage cluster without waiting for completion of the asynchronous inflight tracking and replay at the secondary storage cluster.

A storage node of a primary storage cluster, comprising:

• a processing resource;
• and
• a non-transitory computer-readable medium coupled to the processing resource, having stored therein instructions, which when executed by the processing resource cause the processing resource to:
• maintain state information regarding a data replication status for a storage object of the storage node of a primary storage cluster with the storage object being replicated to a replicated storage object of a secondary storage cluster;
• temporarily disallow input/output (I/O) operations for the storage object when the storage object of the primary storage cluster has a connection loss or failure;
• initiate a resynchronization between the storage object and the replicated storage object including initiating asynchronous inflight tracking and replay of any missing I/O operations that are missing from one of a first Op log of the primary storage cluster and a second Op log of the secondary storage cluster;
• and
• allow new I/O operations to be handled with the storage object of the primary storage cluster without waiting for completion of the asynchronous inflight tracking and replay at the secondary storage cluster.