.TH LVMDUMP 8 "LVM TOOLS 2.03.23(2) (2023-11-21)" "Red Hat, Inc."
.
.SH NAME
.
lvmdump \(em create lvm2 information dumps for diagnostic purposes
.
.SH SYNOPSIS
.
.B lvmdump
.RB [ \-a ]
.RB [ \-c ]
.RB [ \-d
.IR directory ]
.RB [ \-h ]
.RB [ \-l ]
.RB [ \-m ]
.RB [ \-p ]
.RB [ \-s ]
.RB [ \-u ]
.
.SH DESCRIPTION
.
lvmdump is a tool to dump various information concerning LVM2.
By default, it creates a tarball suitable for submission along
with a problem report.
.P
The content of the tarball is as follows:
.ad l
.PD 0
.IP \[bu] 2
dmsetup info
.IP \[bu]
table of currently running processes
.IP \[bu]
recent entries from \fI/var/log/messages\fP (containing system messages)
.IP \[bu]
complete lvm configuration and cache (content of \fI/etc/lvm\fP)
.IP \[bu]
list of device nodes present under \fI/dev\fP
.IP \[bu]
list of files present \fI/sys/block\fP
.IP \[bu]
list of files present \fI/sys/devices/virtual/block\fP
.IP \[bu]
if enabled with \-m, metadata dump will be also included
.IP \[bu]
if enabled with \-a, debug output of vgscan, pvscan and list of all available volume groups, physical volumes and logical volumes will be included
.IP \[bu]
if enabled with \-l, lvmetad state if running
.IP \[bu]
if enabled with \-p, lvmpolld state if running
.IP \[bu]
if enabled with \-s, system info and context
.IP \[bu]
if enabled with \-u, udev info and context
.PD
.ad b
.
.SH OPTIONS
.
.TP
.B \-a
Advanced collection.
\fBWARNING\fR: if lvm is already hung, then this script may hang as well
if \fB\-a\fR is used.
.TP
.B \-d \fIdirectory
Dump into a directory instead of tarball
By default, lvmdump will produce a single compressed tarball containing
all the information. Using this option, it can be instructed to only
produce the raw dump tree, rooted in \fIdirectory\fP.
.TP
.B \-h
Print help message
.TP
.B \-l
Include \fBlvmetad\fP(8) daemon dump if it is running. The dump contains
cached information that is currently stored in lvmetad: VG metadata,
PV metadata and various mappings in between these metadata for quick
access.
.TP
.B \-m
Gather LVM metadata from the PVs
This option generates a 1:1 dump of the metadata area from all PVs visible
to the system, which can cause the dump to increase in size considerably.
However, the metadata dump may represent a valuable diagnostic resource.
.TP
.B \-p
Include \fBlvmpolld\fP(8) daemon dump if it is running. The dump contains
all in-progress operation currently monitored by the daemon and partial
history for all yet uncollected results of polling operations already finished
including reason.
.TP
.B \-s
Gather system info and context. Currently, this encompasses info gathered
by calling lsblk command and various systemd info and context: overall state
of systemd units present in the system, more detailed status of units
controlling LVM functionality and the content of systemd journal for
current boot.
.TP
.B \-u
Gather udev info and context: \fI/etc/udev/udev.conf\fP file, udev daemon version
(output of 'udevadm info \-\-version' command), udev rules currently used in the system
(content of \fI/lib/udev/rules.d\fP and \fI/etc/udev/rules.d\fP directory),
list of files in /lib/udev directory and dump of current udev
database content (the output of 'udevadm info \-\-export\-db' command).
.
.SH ENVIRONMENT VARIABLES
.
.TP
.B LVM_BINARY
The LVM2 binary to use.
Defaults to "\fBlvm\fP".
Sometimes you might need to set this to "\fI/usr/bin/lvm.static\fP", for example.
.TP
.B DMSETUP_BINARY
The dmsetup binary to use.
Defaults to "\fBdmsetup\fP".
.
.SH SEE ALSO
.
.BR lvm (8),
.BR lvmpolld (8),
.P
.BR udev (8),
.BR udevadm (8)