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122 lines
3.6 KiB
Plaintext
122 lines
3.6 KiB
Plaintext
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=head1 NAME
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dafileserver - Initializes the File Server component of the dafs process
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=head1 SYNOPSIS
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=for html
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<div class="synopsis">
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=include fragments/dafileserver-synopsis.pod
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=for html
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</div>
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=head1 DESCRIPTION
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The B<dafileserver> command initializes the File Server component of the
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C<dafs> process. In the conventional configuration, its binary file is
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located in the F</usr/afs/bin> directory on a file server machine.
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The B<dafileserver> command is not normally issued at the command shell
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prompt, but rather placed into a database server machine's
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F</usr/afs/local/BosConfig> file with the B<bos create> command. If it is
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ever issued at the command shell prompt, the issuer must be logged onto a
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file server machine as the local superuser C<root>.
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=include fragments/fileserver-description.pod
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=head1 CAUTIONS
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=include fragments/fileserver-cautions.pod
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=head1 OPTIONS
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=include fragments/fileserver-options.pod
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=item B<-fs-state-dont-save>
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When present, fileserver state will not be saved during shutdown. Default
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is to save state.
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=item B<-fs-state-dont-restore>
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When present, fileserver state will not be restored during startup.
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Default is to restore state on startup.
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=item B<-fs-state-verify> (none | save | restore | both)
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This argument controls the behavior of the state verification mechanism.
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A value of C<none> turns off all verification. A value of C<save> only
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performs the verification steps prior to saving state to disk. A value
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of C<restore> only performs the verification steps after restoring state
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from disk. A value of C<both> performs all verifications steps both
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prior to save and following a restore.
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The default is C<both>.
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=item B<-vhashsize <I<size>>
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The log(2) number of of volume hash buckets. Default is 8 (i.e., by
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default, there are 2^8 = 256 volume hash buckets).
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=item B<-vlruthresh <I<minutes>>
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The number of minutes of inactivity before a volume is eligible for soft
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detachment. Default is 120 minutes.
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=item B<-vlruinterval <I<seconds>>
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The number of seconds between VLRU candidate queue scan. The default is
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120 seconds.
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=item B<-vlrumax <I<positive integer>>
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The maximum number of volumes which can be soft detached in a single pass
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of the scanner. Default is 8 volumes.
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=item B<-unsafe-nosalvage>
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This option causes the fileserver to bypass the normal safety check when
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attaching volumes that checks the inUse field in the volume header. With
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this option, volumes that were in use at the time of an unclean shutdown
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will not be salvaged immediately the next time they are accessed, and thus
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risk (possibly silent and/or irrevocable) corruption. Volumes will still
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be salvaged when an internal inconsistency is detected or other cases
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where a salvage would normally occur.
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Due to the increased risk of data corruption, the use of this flag is
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strongly discouraged. Only use it if you really know what you are doing.
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=back
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=head1 EXAMPLES
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The following B<bos create> command creates a dafs process on
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the file server machine C<fs2.abc.com> that uses the large configuration
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size, and allows volumes to exceed their quota by 10%. Type the command on
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a single line:
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% bos create -server fs2.abc.com -instance dafs -type dafs \
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-cmd "/usr/afs/bin/fileserver -pctspare 10 -L" \
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/usr/afs/bin/volserver \
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/usr/afs/bin/salvageserver \
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/usr/afs/bin/salvager
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=head1 TROUBLESHOOTING
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=include fragments/fileserver-troubleshooting.pod
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=head1 PRIVILEGE REQUIRED
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=include fragments/fileserver-privilege.pod
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=head1 SEE ALSO
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=include fragments/fileserver-also.pod
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L<fileserver(8)>,
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=head1 COPYRIGHT
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=include fragments/fileserver-copyright.pod
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