1LVMDUMP(8)                  System Manager's Manual                 LVMDUMP(8)
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NAME

6       lvmdump — create lvm2 information dumps for diagnostic purposes
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SYNOPSIS

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

12       lvmdump  is  a  tool  to  dump various information concerning LVM2.  By
13       default, it creates a tarball suitable  for  submission  along  with  a
14       problem report.
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16       The content of the tarball is as follows:
17       - dmsetup info
18       - table of currently running processes
19       - recent entries from /var/log/messages (containing system messages)
20       - complete lvm configuration and cache (content of /etc/lvm)
21       - list of device nodes present under /dev
22       - list of files present /sys/block
23       - list of files present /sys/devices/virtual/block
24       - if enabled with -m, metadata dump will be also included
25       -  if  enabled  with -a, debug output of vgscan, pvscan and list of all
26       available volume groups, physical volumes and logical volumes  will  be
27       included
28       - if enabled with -c, cluster status info
29       - if enabled with -l, lvmetad state if running
30       - if enabled with -p, lvmpolld state if running
31       - if enabled with -s, system info and context
32       - if enabled with -u, udev info and context
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OPTIONS

35       -a     Advanced collection.  WARNING: if lvm is already hung, then this
36              script may hang as well if -a is used.
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38       -c     If clvmd is running, gather cluster data as well.
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40       -d directory
41              Dump into a directory instead of  tarball  By  default,  lvmdump
42              will  produce  a  single  compressed  tarball containing all the
43              information. Using this option, it can  be  instructed  to  only
44              produce the raw dump tree, rooted in directory.
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46       -h     Print help message
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48       -l     Include  lvmetad(8)  daemon dump if it is running. The dump con‐
49              tains cached information that is currently stored in lvmetad: VG
50              metadata,  PV  metadata  and  various  mappings in between these
51              metadata for quick access.
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53       -m     Gather LVM metadata from the PVs This  option  generates  a  1:1
54              dump  of  the  metadata area from all PVs visible to the system,
55              which can cause the dump to increase in size considerably.  How‐
56              ever,  the  metadata  dump  may  represent a valuable diagnostic
57              resource.
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59       -p     Include lvmpolld(8) daemon dump if it is running. The dump  con‐
60              tains  all in-progress operation currently monitored by the dae‐
61              mon and partial history  for  all  yet  uncollected  results  of
62              polling operations already finished including reason.
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64       -s     Gather system info and context. Currently, this encompasses info
65              gathered by calling lsblk command and various systemd  info  and
66              context:  overall  state of systemd units present in the system,
67              more detailed status of units controlling LVM functionality  and
68              the content of systemd journal for current boot.
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70       -u     Gather  udev  info  and  context: /etc/udev/udev.conf file, udev
71              daemon version (output of  'udevadm  info  --version'  command),
72              udev   rules   currently   used   in   the  system  (content  of
73              /lib/udev/rules.d  and  /etc/udev/rules.d  directory),  list  of
74              files  in  /lib/udev directory and dump of current udev database
75              content (the output of 'udevadm info --export-db' command).
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ENVIRONMENT VARIABLES

78       LVM_BINARY
79              The LVM2 binary to use.  Defaults to "lvm".  Sometimes you might
80              need to set this to "/sbin/lvm.static", for example.
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82       DMSETUP_BINARY
83              The dmsetup binary to use.  Defaults to "dmsetup".
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SEE ALSO

86       lvm(8)
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90Red Hat, Inc.      LVM TOOLS 2.02.180(2)-RHEL7 (2018-07-20)         LVMDUMP(8)
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