I did a quick look at the docs and found this link
http://technet.microsoft.com/en-ca/library/bb932128.aspx
In general, the basic flow of data from child sites to a parent site in a Configuration Manager site hierarchy is as follows:
·
Data files received from clients and child sites during site-to-site communication are stored in the appropriate site server inbox directory.
·
The site server reads the data stored in the inboxes and processes it. As part of the data processing, some of the data is committed to the SQL Server site database.
·
The data operations conducted by the SQL Server are a combination of deletes, updates, and inserts.
The “CM docs” team is fantastic at taking suggestion, if you feel that there needs to be more details, I recommend that you email the docs team (Their
email address is listed at the bottom of every page within the help file, I would list it here but I don’t want them to get spammed).
The “CM docs” team is fantastic at taking suggestions, they may not reply to the email that you send them but truly do listen and all email are logged,
so…