Synchronous replication in a storage system

A system, comprising:

• a memory comprising computer-executable instructions;
• and
• a processor operable by a storage system, the processor executing the computer-executable instructions, the computer-executable instructions when executed by the processor cause the processor to perform operations comprising:
• setting a minimum snap set creation interval;
• setting a maximum snap set creation interval;
• setting a recovery time threshold;
• and
• periodically creating, at a source system of the storage system, snap sets during a synchronous replication process based on the minimum and maximum snap set creation intervals and the recovery time threshold, the creating snap sets comprising:
• monitoring an amount of data changes since last snap set creation;
• monitoring throughput statistics between the source system and a target system of the storage system;
• estimating an amount of time to replicate the data changes to the target system based on the amount of data changes and the throughput statistics;
• upon determining both the time to replicate the data changes reaches the recovery time threshold and the time since the last snap set creation passes the minimum snap set creation interval:
• creating a next snap set;
• storing the next snap set at the source system;
• and
• replicating the next snap set at the target system.

A computer program product embodied on a non-transitory computer readable medium, the computer program product including instructions that, when executed by a computer, causes the computer to perform operations comprising:

• setting a minimum snap set creation interval;
• setting a maximum snap set creation interval;
• setting a recovery time threshold;
• and
• periodically creating, at a source system of the storage system, snap sets during a synchronous replication process based on the minimum and maximum snap set creation intervals and the recovery time threshold, the creating snap sets comprising:
• monitoring an amount of data changes since last snap set creation;
• monitoring throughput statistics between the source system and a target system of the storage system;
• estimating an amount of time to replicate the data changes to the target system based on the amount of data changes and the throughput statistics;
• upon determining both the time to replicate the data changes reaches the recovery time threshold and the time since the last snap set creation passes the minimum snap set creation interval:
• creating a next snap set;
• storing the next snap set at the source system;
• and
• replicating the next snap set at the target system.