Dan Nelson commented on Jul 5, 2011

More docs

http://www.redbooks.ibm.com/redpapers/pdfs/redp4182.pdf documents some more options and variables to the log= line:

Variable 1 = Log's file name.

Variable 2 = Logging options to be added together:

1= Log to console.

2= Force database Fixup when opening log.

4= Full document scan (as opposed to quick scan or open).

Variable 3 = Not currently used.

Variable 4 = Number of days at which to delete log documents.

Variable 5 = Size of log text in event documents.

Variable 6 = Optional number of days to keep activity trends data documents.