LVMDUMP(8) System Manager's Manual LVMDUMP(8)
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 -c, cluster status info
- 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.
-c If clvmd is running, gather cluster data as well.
-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 meta‐
data 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
SEE ALSO
lvm(8)
Red Hat, Inc. LVM TOOLS 2.02.166(2)-RHEL7 (2016-11-16) LVMDUMP(8)
Back to main site | Back to man page index