|The usage notes for ARCHIVE LOG currently state that using this command |will cause a database to lose a portion of its log sequence number (LSN) |space, and thereby hasten the exhaustion of valid LSNs. To put this |space usage into context, if you have a log file size of 100M and run ARCHIVE |LOG every five minutes, it will still take approximately 40 years to exhaust |the valid LSNs. Under most operating conditions, you will not |experience an impact.