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72 lines
3.2 KiB
Plaintext
72 lines
3.2 KiB
Plaintext
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=head1 NAME
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butc_logs - Message logs from the Tape Coordinator process
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=head1 DESCRIPTION
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The Backup System Tape Coordinator (B<butc>) process generates two log
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files per device, one for error messages and one for actions.
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=head2 Error Message Log
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The F<TE_I<device_name>> file logs error messages generated by the Backup
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System Tape Coordinator that controls the tape device or backup data file
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indicated by I<device_name>.
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As the Tape Coordinator initializes, it creates the file in ASCII format
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in the F</usr/afs/backup> directory. If there is an existing file, the
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Tape Coordinator renames it to F<TE_I<device_name>.old>>, overwriting the
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existing F<TE_I<device_name>.old>> file if it exists.
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For a tape device, the Tape Coordinator derives the variable
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I<device_name> portion of the filename from the device pathname listed in
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the local F</usr/afs/backup/tapeconfig> file, by stripping off the initial
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C</dev/> string and replacing any other slashes in the name with
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underscores. For example, the filename for a device called F</dev/rmt/4m>
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is F<TE_rmt_4m>. Similarly, for a backup data file the Tape Coordinator
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strips off the initial slash (C</>) and replaces any other slashes in the
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name with underscores. For example, the filename for a backup data file
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called F</var/tmp/FILE> is F<TE_var_tmp_FILE>.
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The messages in the file describe the error and warning conditions the
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Tape Coordinator encounters as it operates. For instance, a message can
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list the volumes that are inaccessible during a dump operation, or warn
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that the Tape Coordinator is overwriting a tape or backup data file. The
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messages also appear in the F</usr/afs/backup/TL_I<device_name>> file,
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which traces most of the Tape Coordinator's actions.
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=head2 Action Log
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The F<TL_I<device_name>> file logs the actions performed by the Backup
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System Tape Coordinator that controls the tape device or backup data file
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indicated by I<device_name>. It also records the same error and warning
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messages written to the F<TE_I<device_name>> file.
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As the Tape Coordinator initializes, it creates the file in ASCII format
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in the F</usr/afs/backup> directory. If there is an existing file, the
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Tape Coordinator renames it to F<TL_I<device_name>.old>, overwriting the
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existing F<TL_I<device_name>.old> file if it exists.
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For a tape device, the Tape Coordinator derives the variable
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I<device_name> portion of the filename from the device pathname listed in
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the local F</usr/afs/backup/tapeconfig> file, by stripping off the initial
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C</dev/> string and replacing any other slashes in the name with
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underscores. For example, the filename for a device called F</dev/rmt/4m>
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is F<TL_rmt_4m>. Similarly, for a backup data file the Tape Coordinator
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strips off the initial slash (C</>) and replaces any other slashes in the
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name with underscores. For example, the filename for a backup data file
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called F</var/tmp/FILE> is F<TL_var_tmp_FILE>.
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=head1 SEE ALSO
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L<tapeconfig(5)>,
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L<butc(8)>
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=head1 COPYRIGHT
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IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
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This documentation is covered by the IBM Public License Version 1.0. It was
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converted from HTML to POD by software written by Chas Williams and Russ
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Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
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