Jan 16 02:30 2004 DAILY REPORT FOR venus Page 1 from Mon Jan 15 02:30:02 2004 to Tue Oan 16 02:30:01 2004 1 runacct 1 acctcon TOTAL DURATION IS 1440 MINUTES LINE MINUTES PERCENT # SESS # ON # OFF console 868 60 1 1 2 TOTALS 868 -- 1 1 2
The from and to lines specify the time period reflected in the report. This time period covers the time the last Daily Report was generated to the time the current Daily Report was generated. Then, the report presents a log of system reboots, shutdowns, power failure recoveries, and any other record written to the /var/adm/wtmpx file by the acctwtmp program. For more information, see the acct(1M) man page.
The second part of the report is a breakdown of terminal line utilization. The TOTAL DURATION tells how long the system was in multiuser mode (accessible through the terminal lines). The following list describes the data provided by the Daily Report.
The terminal line or access port.
The number of minutes that the line was in use during the accounting period.
The TOTAL DURATION divided by the number of MINUTES.
The number of times this line or port was accessed for a login session.
Same as SESS. (This column no longer has meaning. Previously, this column listed the number of times that a line or port was used to log in a user.)
The number of times a user logs out and any interrupts that occur on that line. Generally, interrupts occur on a port when ttymon is first invoked after the system is brought to multiuser mode. If the # OFF exceeds the # SESS by a large factor, the multiplexer, modem, or cable is probably going bad. Or, a bad connection exists somewhere. The most common cause is an unconnected cable dangling from the multiplexer.
During real time, you should monitor the /var/adm/wtmpx file because it is the file from which the connect accounting is derived. If the wtmpx file grows rapidly, execute the following command to see which tty line is the noisiest.
# /usr/lib/acct/acctcon -l file < /var/adm/wtmpx
If interruption is occurring frequently, general system performance will be affected. Additionally, the wtmp file might become corrupted. To correct this problem, see How to Fix a Corrupted wtmpx File.