Amanda log files/Trace Logs

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Each dump or flush creates a file named log.YYYYMMDD.N in the logdir directory, where YYYYMMDD is the datestamp of the start of the amdump/amflush run, and N is a sequence number starting at 0.

This log file is used for generating backup reports with amreport, as well as tracking what dumps with amadmin - find.

Each line in the file begins with a keyword. Depending on the keyword, rest of the line is parsed. Backup statistics can be obtained from this log file.

Do not delete these log files! Removing them means you cannot use Amanda tools to locate older backups (the information to restore the most recent backup is kept in the curinfo database, and is read by "amadmin xx info").

At the end of a run, logfiles for runs whose tapes have been reused are moved into a subdirectory named oldlog inside the logdir directory. This is done by amtrmlog, which is called by the amdump shell script. It is up to the administrator to remove older log files from the oldlog subdirectory.

Examples of messages

Below are some examples of important messages with explanation in this log file.

  • START taper datestamp datestamp label tape-label tape current-tape
START taper datestamp 20070305162948 label test-00 tape 0

This indicates that the taper started to write a tape.

  • INFO taper tape tape label kb total tape used fm filemark [error or OK]
INFO taper tape test-00 kb 1472 fm 1 [OK]

This indicates that the taper has completed a tape and is writing and end marker.

  • FINISH planner date datestamp time time elapsed since planner started.
FINISH planner date 20070305162948 time 0.294

This indicates that the planner has finished creating its plan, and dumping can begin.

  • SUCCESS taper client disk datestamp level [ sec time-took kb output-kb kp/s KB-per-second {wr: writers number of writes rdwait read wait time wrwait write wait time filemark filemark wait time}]
SUCCESS taper localhost /tmp/quicktest/data 20070305162948 0 [sec 0.205 kb 1440 kps 7021.9 {wr: writers 46 rdwait 0.192 wrwait 0.011 filemark 0.0}]

This indicates that a dump has been successfully written to tape.

  • SUCCESS dumper client disk timestamp level [sec total runtime kb size of dump kps kp per second orig-kb original size]
SUCCESS dumper localhost /tmp/quicktest/data 20070305162948 0 [sec 0.169 kb 1430 kps 8437.1 orig-kb 1430]

This indicates that a dump has been successfully dumped (either to holding or directly to tape).

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