LVMDUMP
Section: Maintenance Commands (8)
Updated: LVM TOOLS 2.03.16(2) (2022-05-18)
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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
- •
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list of files present /sys/devices/virtual/block
- •
-
if enabled with -m, metadata dump will be also included
- •
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if enabled with -a, debug output of vgscan, pvscan and list of all available volume groups, physical volumes and logical volumes will be included
- •
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if enabled with -l, lvmetad state if running
- •
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if enabled with -p, lvmpolld state if running
- •
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if enabled with -s, system info and context
- •
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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".
SEE ALSO
lvm(8),
lvmpolld(8),
udev(8),
udevadm(8)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- ENVIRONMENT VARIABLES
-
- SEE ALSO
-
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Time: 17:45:52 GMT, May 24, 2024