How to choose between synchronous and asynchronous Microsoft Storage Replica replication

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Synchronous replication in Microsoft Storage Replica works like this:

1. The application writes data.
2. The log data (logs) are written and the data goes to the backup site.
3. Logs are also recorded on the remote site.
4. A confirmation of data recording comes from the backup site.
5. For an application, a data record is considered confirmed.

For asynchronous replication, the process can be represented as follows:

1. The application writes data.
2. Log data is logged.
3. For an application, a data record is considered confirmed.
4. Data goes to the backup site.
5. Logs are also recorded on the remote site.
6. A confirmation of data recording comes from the backup site.

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