The new message log management feature allows the server to archive the message log file and maintain all of the information written to the message log, preventing the log file size from growing indefinitely. Message log management is controlled by the new server properties IQMsgMaxSize and IQMsgNumFiles or the new server startup switches -iqmsgsz and -iqmsgnum.
The IQMSG_LENGTH_MB database
option has been deprecated and must be removed from existing scripts
and code. Attempts to use the IQMSG_LENGTH_MB option
will result in an error.