Man page - lvmdump(8)

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Package: lvm2
apt-get install lvm2

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lvm2

Manual

LVMDUMP

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
ENVIRONMENT VARIABLES
SEE ALSO

NAME

lvmdump — create lvm2 information dumps for diagnostic purposes

SYNOPSIS

lvmdump [ -a ] [ -c ] [ -d directory ] [ -h ] [ -l ] [ -m ] [ -p ] [ -s ] [ -u ]

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.

The content of the tarball is as follows:

	•		dmsetup info
	•		table of currently running processes
	•		recent entries from /var/log/messages (containing system messages)
	•		complete lvm configuration and cache (content of /etc/lvm )
	•		list of device nodes present under /dev
	•		list of files present /sys/block
	•		list of files present /sys/devices/virtual/block
	•		if enabled with -m, metadata dump will be also included
	•		if enabled with -a, debug output of vgscan, pvscan and list of all available volume groups, physical volumes and logical volumes will be included
	•		if enabled with -l, lvmetad state if running
	•		if enabled with -p, lvmpolld state if running
	•		if enabled with -s, system info and context
	•		if enabled with -u, udev info and context

OPTIONS

-a

Advanced collection. WARNING : if lvm is already hung, then this script may hang as well if -a is used.

-d directory

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 directory .

	-h		Print help message
	-l		Include lvmetad (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.
	-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.
	-p		Include lvmpolld (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.
	-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.
	-u		Gather udev info and context: /etc/udev/udev.conf file, udev daemon version (output of ’udevadm info --version’ command), udev rules currently used in the system (content of /lib/udev/rules.d and /etc/udev/rules.d directory), list of files in /lib/udev directory and dump of current udev database content (the output of ’udevadm info --export-db’ command).

ENVIRONMENT VARIABLES

LVM_BINARY

The LVM2 binary to use. Defaults to " lvm ". Sometimes you might need to set this to " /usr/bin/lvm.static ", for example.

DMSETUP_BINARY

The dmsetup binary to use. Defaults to " dmsetup ".