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3f0434057b
'lvm dumpconfig' now does a lot more than just dumping configuration information and is no longer only a support tool. Users now need to run it to find out about configuration information that has been removed from the lvm.conf man page so we need to promote this to full command line status as 'lvmconfig'. Also accept 'lvm config' and mention it in the usage information of lvmconf (which should also get merged in eventually).
72 lines
2.3 KiB
Groff
72 lines
2.3 KiB
Groff
.TH LVMETAD 8 "LVM TOOLS #VERSION#" "Red Hat Inc" \" -*- nroff -*-
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.SH NAME
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lvmetad \(em LVM metadata cache daemon
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.SH SYNOPSIS
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.B lvmetad
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.RB [ \-l
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.RI { all | wire | debug }]
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.RB [ \-p
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.IR pidfile_path ]
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.RB [ \-s
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.IR socket_path ]
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.RB [ \-f ]
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.RB [ \-h ]
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.RB [ \-V ]
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.RB [ \-? ]
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.SH DESCRIPTION
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lvmetad is a metadata caching daemon for LVM. The daemon receives notifications
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from udev rules (which must be installed for LVM to work correctly when lvmetad
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is in use). Through these notifications, lvmetad has an up-to-date and
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consistent image of the volume groups available in the system.
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lvmetad is used by LVM only if it is enabled in \fBlvm.conf\fP(5) by specifying the
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\fBglobal/use_lvmetad\fP setting. If this is not defined in the LVM configuration
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explicitly then default setting is used instead (see the output of
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\fBlvmconfig \-\-type default global/use_lvmetad\fP command).
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.SH OPTIONS
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To run the daemon in a test environment both the pidfile_path and the
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socket_path should be changed from the defaults.
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.TP
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.B \-f
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Don't fork, but run in the foreground.
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.TP
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.BR \-h ", " \-?
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Show help information.
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.TP
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.IR \fB\-l " {" all | wire | debug }
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Select the type of log messages to generate.
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Messages are logged by syslog.
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Additionally, when \-f is given they are also sent to standard error.
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Since release 2.02.98, there are two classes of messages: wire and debug.
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Selecting 'all' supplies both and is equivalent to a comma-separated list
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\-l wire,debug.
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Prior to release 2.02.98, repeating \-d from 1 to 3 times, viz. \-d, \-dd, \-ddd,
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increased the detail of messages.
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.TP
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.B \-p \fIpidfile_path
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Path to the pidfile. This overrides both the built-in default
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(#DEFAULT_PID_DIR#/lvmetad.pid) and the environment variable
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\fBLVM_LVMETAD_PIDFILE\fP. This file is used to prevent more
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than one instance of the daemon running simultaneously.
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.TP
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.B \-s \fIsocket_path
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Path to the socket file. This overrides both the built-in default
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(#DEFAULT_RUN_DIR#/lvmetad.socket) and the environment variable
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\fBLVM_LVMETAD_SOCKET\fP. To communicate successfully with lvmetad,
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all LVM2 processes should use the same socket path.
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.TP
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.B \-V
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Display the version of lvmetad daemon.
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.SH ENVIRONMENT VARIABLES
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.TP
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.B LVM_LVMETAD_PIDFILE
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Path for the pid file.
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.TP
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.B LVM_LVMETAD_SOCKET
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Path for the socket file.
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.SH SEE ALSO
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.BR lvm (8),
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.BR lvm.conf (5)
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