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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 con-
              tains 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.  How-
              ever,  the  metadata  dump  may  represent a valuable diagnostic
              resource.
       -p     Include lvmpolld(8) daemon dump if it is running. The dump  con-
              tains  all in-progress operation currently monitored by the dae-
              mon 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 "/sbin/lvm.static", for example.
       DMSETUP_BINARY
              The dmsetup binary to use.  Defaults to "dmsetup".
SEE ALSO
       lvm(8)

Red Hat, Inc.      LVM TOOLS 2.02.187(2)-RHEL7 (2020-03-24)         LVMDUMP(8)