BLOB EATER (10/28/2016)
As Jeff said, I would get a coffee and enjoy reading this:https://technet.microsoft.com/en-us/library/2009.02.logging.aspx#id0060077
I would also get several coffees and a sandwich, and read Tony Davis & Gail Shaw on Transaction Log Management: https://www.red-gate.com/library/sql-server-transaction-log-management. (Free PDF from Redgate, and available as a physical / kindle book from Amazon...)
Thomas Rushton
blog: https://thelonedba.wordpress.com