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108 lines
3.3 KiB
Plaintext
108 lines
3.3 KiB
Plaintext
.TH LVMDUMP 8 "LVM TOOLS #VERSION#" "Red Hat, Inc."
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.SH NAME
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lvmdump \(em create lvm2 information dumps for diagnostic purposes
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.SH SYNOPSIS
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.B lvmdump
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.RB [ -a ]
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.RB [ -c ]
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.RB [ -d
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.IR directory ]
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.RB [ -h ]
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.RB [ -l ]
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.RB [ -m ]
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.RB [ -p ]
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.RB [ -s ]
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.RB [ -u ]
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.SH DESCRIPTION
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lvmdump is a tool to dump various information concerning LVM2.
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By default, it creates a tarball suitable for submission along
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with a problem report.
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.PP
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The content of the tarball is as follows:
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.br
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- dmsetup info
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.br
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- table of currently running processes
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.br
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- recent entries from /var/log/messages (containing system messages)
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.br
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- complete lvm configuration and cache (content of /etc/lvm)
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.br
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- list of device nodes present under /dev
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.br
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- list of files present /sys/block
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.br
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- list of files present /sys/devices/virtual/block
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.br
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- if enabled with -m, metadata dump will be also included
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.br
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- if enabled with -a, debug output of vgscan, pvscan and list of all available volume groups, physical volumes and logical volumes will be included
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.br
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- if enabled with -l, lvmetad state if running
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.br
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- if enabled with -p, lvmpolld state if running
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.br
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- if enabled with -s, system info and context
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.br
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- if enabled with -u, udev info and context
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.SH OPTIONS
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.TP
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.B -a
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Advanced collection.
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\fBWARNING\fR: if lvm is already hung, then this script may hang as well
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if \fB-a\fR is used.
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.TP
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.B -d \fIdirectory
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Dump into a directory instead of tarball
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By default, lvmdump will produce a single compressed tarball containing
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all the information. Using this option, it can be instructed to only
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produce the raw dump tree, rooted in \fIdirectory\fP.
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.TP
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.B -h
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Print help message
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.TP
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.B -l
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Include \fBlvmetad\fP(8) daemon dump if it is running. The dump contains
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cached information that is currently stored in lvmetad: VG metadata,
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PV metadata and various mappings in between these metadata for quick
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access.
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.TP
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.B -m
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Gather LVM metadata from the PVs
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This option generates a 1:1 dump of the metadata area from all PVs visible
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to the system, which can cause the dump to increase in size considerably.
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However, the metadata dump may represent a valuable diagnostic resource.
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.TP
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.B -p
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Include \fBlvmpolld\fP(8) daemon dump if it is running. The dump contains
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all in-progress operation currently monitored by the daemon and partial
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history for all yet uncollected results of polling operations already finished
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including reason.
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.TP
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.B -s
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Gather system info and context. Currently, this encompasses info gathered
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by calling lsblk command and various systemd info and context: overall state
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of systemd units present in the system, more detailed status of units
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controlling LVM functionality and the content of systemd journal for
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current boot.
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.TP
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.B -u
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Gather udev info and context: /etc/udev/udev.conf file, udev daemon version
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(output of 'udevadm info --version' command), udev rules currently used in the system
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(content of /lib/udev/rules.d and /etc/udev/rules.d directory),
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list of files in /lib/udev directory and dump of current udev
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database content (the output of 'udevadm info --export-db' command).
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.SH ENVIRONMENT VARIABLES
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.TP
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\fBLVM_BINARY\fP
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The LVM2 binary to use.
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Defaults to "lvm".
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Sometimes you might need to set this to "/sbin/lvm.static", for example.
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.TP
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\fBDMSETUP_BINARY\fP
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The dmsetup binary to use.
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Defaults to "dmsetup".
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.PP
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.SH SEE ALSO
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.BR lvm (8)
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