Modifying A Synchronously Replicated Dataset

A storage system that includes a plurality of storage devices, the storage system including a computer processor and a computer memory that includes computer program instructions that, when executed by the computer processor, cause the storage system to carry out the steps of:

• receiving a request to modify a dataset that is synchronized across a plurality of storage systems;
• sending, to a follower storage system, information describing the request to modify the dataset, wherein the storage system and the follower storage system each store a copy of the dataset;
• processing, on the copy of the dataset that is stored on the storage system, the request to modify the dataset;
• receiving, from the follower storage system, an indication that the follower storage system has processed the request to modify the dataset on the copy of the dataset that is stored on the follower storage system;
• and
• acknowledging completion of the request to modify the dataset.

A computer program product disposed on a non-transitory computer readable medium, the computer program product including computer program instructions that, when executed, carry out the steps of:

• receiving a request to modify a dataset that is synchronized across a plurality of storage systems;
• sending, to a follower storage system, information describing the request to modify the dataset, wherein the storage system and the follower storage system each store a copy of the dataset;
• processing, on the copy of the dataset that is stored on the storage system, the request to modify the dataset;
• receiving, from the follower storage system, an indication that the follower storage system has processed the request to modify the dataset on the copy of the dataset that is stored on the follower storage system;
• and
• acknowledging completion of the request to modify the dataset.