1LVMDUMP(8) System Manager's Manual LVMDUMP(8)
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6 lvmdump — create lvm2 information dumps for diagnostic purposes
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9 lvmdump [-a] [-c] [-d directory] [-h] [-l] [-m] [-p] [-s] [-u]
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12 lvmdump is a tool to dump various information concerning LVM2. By de‐
13 fault, it creates a tarball suitable for submission along with a prob‐
14 lem report.
15 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 -l, lvmetad state if running
29 - if enabled with -p, lvmpolld state if running
30 - if enabled with -s, system info and context
31 - if enabled with -u, udev info and context
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34 -a Advanced collection. WARNING: if lvm is already hung, then this
35 script may hang as well if -a is used.
36 -d directory
38 Dump into a directory instead of tarball By default, lvmdump
39 will produce a single compressed tarball containing all the in‐
40 formation. Using this option, it can be instructed to only pro‐
41 duce the raw dump tree, rooted in directory.
42 -h Print help message
44 -l Include lvmetad(8) daemon dump if it is running. The dump con‐
46 tains cached information that is currently stored in lvmetad: VG
47 metadata, PV metadata and various mappings in between these
48 metadata for quick access.
49 -m Gather LVM metadata from the PVs This option generates a 1:1
51 dump of the metadata area from all PVs visible to the system,
52 which can cause the dump to increase in size considerably. How‐
53 ever, the metadata dump may represent a valuable diagnostic re‐
54 source.
55 -p Include lvmpolld(8) daemon dump if it is running. The dump con‐
57 tains all in-progress operation currently monitored by the dae‐
58 mon and partial history for all yet uncollected results of
59 polling operations already finished including reason.
60 -s Gather system info and context. Currently, this encompasses info
62 gathered by calling lsblk command and various systemd info and
63 context: overall state of systemd units present in the system,
64 more detailed status of units controlling LVM functionality and
65 the content of systemd journal for current boot.
66 -u Gather udev info and context: /etc/udev/udev.conf file, udev
68 daemon version (output of 'udevadm info --version' command),
69 udev rules currently used in the system (content of
70 /lib/udev/rules.d and /etc/udev/rules.d directory), list of
71 files in /lib/udev directory and dump of current udev database
72 content (the output of 'udevadm info --export-db' command).
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75 LVM_BINARY
76 The LVM2 binary to use. Defaults to "lvm". Sometimes you might
77 need to set this to "/usr/lvm/lvm.static", for example.
78 DMSETUP_BINARY
80 The dmsetup binary to use. Defaults to "dmsetup".
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83 lvm(8)
84Red Hat, Inc. LVM TOOLS 2.03.11(2) (2021-01-08) LVMDUMP(8)