There is a series of articles describing SQL Server log.
Apart from that, these are several links to Virtual Log File (VLF) descriptions and the consequence of small or large number of VLF's.
http://sqlblog.com/blogs/linchi_shea/archive/2009/02/09/performance-impact-a-large-number-of-virtual-log-files-part-i.aspx
http://www.sqlskills.com/blogs/kimberly/transaction-log-vlfs-too-many-or-too-few/
http://blogs.msdn.com/b/grahamk/archive/2008/05/16/slow-recovery-times-and-slow-performance-due-to-large-numbers-of-virtual-log-files.aspx
Apart from that, these are several links to Virtual Log File (VLF) descriptions and the consequence of small or large number of VLF's.
http://sqlblog.com/blogs/linchi_shea/archive/2009/02/09/performance-impact-a-large-number-of-virtual-log-files-part-i.aspx
http://www.sqlskills.com/blogs/kimberly/transaction-log-vlfs-too-many-or-too-few/
http://blogs.msdn.com/b/grahamk/archive/2008/05/16/slow-recovery-times-and-slow-performance-due-to-large-numbers-of-virtual-log-files.aspx
