mirror of
git://sourceware.org/git/lvm2.git
synced 2024-10-26 17:25:10 +03:00
461 lines
9.1 KiB
Plaintext
461 lines
9.1 KiB
Plaintext
.TH PVSCAN 8 "LVM TOOLS #VERSION#" "Red Hat, Inc."
|
|
.SH NAME
|
|
pvscan - List all physical volumes
|
|
.
|
|
.SH SYNOPSIS
|
|
\fBpvscan\fP \fIoption_args\fP
|
|
.br
|
|
[ \fIoption_args\fP ]
|
|
.br
|
|
[ \fIposition_args\fP ]
|
|
.br
|
|
.SH DESCRIPTION
|
|
When called without the --cache option, pvscan lists PVs on the system,
|
|
like
|
|
.BR pvs (8)
|
|
or
|
|
.BR pvdisplay (8).
|
|
|
|
When the --cache and -aay options are used, pvscan records which PVs are
|
|
available on the system, and activates LVs in completed VGs. A VG is
|
|
complete when pvscan sees that the final PV in the VG has appeared. This
|
|
is used by event-based system startup (systemd, udev) to activate LVs.
|
|
|
|
The four main variations of this are:
|
|
|
|
.B pvscan --cache
|
|
.IR device
|
|
|
|
If device is present, lvm adds a record that the PV on device is online.
|
|
If device is not present, lvm removes the online record for the PV.
|
|
In most cases, the pvscan will only read the named devices.
|
|
|
|
.B pvscan --cache -aay
|
|
.IR device ...
|
|
|
|
This begins by performing the same steps as above. Afterward, if the VG
|
|
for the specified PV is complete, then pvscan will activate LVs in the VG
|
|
(the same as vgchange -aay vgname would do.)
|
|
|
|
.B pvscan --cache
|
|
|
|
This first clears all existing PV online records, then scans all devices
|
|
on the system, adding PV online records for any PVs that are found.
|
|
|
|
.B pvscan --cache -aay
|
|
|
|
This begins by performing the same steps as pvscan --cache. Afterward, it
|
|
activates LVs in any complete VGs.
|
|
|
|
To prevent devices from being scanned by pvscan --cache, add them
|
|
to
|
|
.BR lvm.conf (5)
|
|
.B devices/global_filter.
|
|
For more information, see:
|
|
.br
|
|
.B lvmconfig --withcomments devices/global_filter
|
|
|
|
Auto-activation of VGs or LVs can be enabled/disabled using:
|
|
.br
|
|
.BR lvm.conf (5)
|
|
.B activation/auto_activation_volume_list
|
|
|
|
For more information, see:
|
|
.br
|
|
.B lvmconfig --withcomments activation/auto_activation_volume_list
|
|
|
|
To disable auto-activation, explicitly set this list to an empty list,
|
|
i.e. auto_activation_volume_list = [ ].
|
|
|
|
When this setting is undefined (e.g. commented), then all LVs are
|
|
auto-activated.
|
|
|
|
.SH USAGE
|
|
Display PV information.
|
|
.br
|
|
.P
|
|
\fBpvscan\fP
|
|
.br
|
|
.RS 4
|
|
.ad l
|
|
[ \fB-e\fP|\fB--exported\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-n\fP|\fB--novolumegroup\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-s\fP|\fB--short\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-u\fP|\fB--uuid\fP ]
|
|
.ad b
|
|
.br
|
|
[ COMMON_OPTIONS ]
|
|
.RE
|
|
.br
|
|
|
|
Autoactivate a VG when all PVs are online.
|
|
.br
|
|
.P
|
|
\fBpvscan\fP \fB--cache\fP
|
|
.br
|
|
.RS 4
|
|
.ad l
|
|
[ \fB-a\fP|\fB--activate\fP \fBay\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-j\fP|\fB--major\fP \fINumber\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--minor\fP \fINumber\fP ]
|
|
.ad b
|
|
.br
|
|
[ COMMON_OPTIONS ]
|
|
.RE
|
|
.br
|
|
.RS 4
|
|
[ \fIString\fP|\fIPV\fP ... ]
|
|
.RE
|
|
|
|
Common options for command:
|
|
.
|
|
.RS 4
|
|
.ad l
|
|
[ \fB--ignorelockingfailure\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--reportformat\fP \fBbasic\fP|\fBjson\fP ]
|
|
.ad b
|
|
.RE
|
|
|
|
Common options for lvm:
|
|
.
|
|
.RS 4
|
|
.ad l
|
|
[ \fB-d\fP|\fB--debug\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-h\fP|\fB--help\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-q\fP|\fB--quiet\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-t\fP|\fB--test\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-v\fP|\fB--verbose\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-y\fP|\fB--yes\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--commandprofile\fP \fIString\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--config\fP \fIString\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--driverloaded\fP \fBy\fP|\fBn\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--lockopt\fP \fIString\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--longhelp\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--nolocking\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--profile\fP \fIString\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--version\fP ]
|
|
.ad b
|
|
.RE
|
|
.SH OPTIONS
|
|
.HP
|
|
.ad l
|
|
\fB-a\fP|\fB--activate\fP \fBy\fP|\fBn\fP|\fBay\fP
|
|
.br
|
|
Auto-activate LVs in a VG when the PVs scanned have completed the VG.
|
|
(Only \fBay\fP is applicable.)
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--cache\fP
|
|
.br
|
|
Scan one or more devices and record that they are online.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--commandprofile\fP \fIString\fP
|
|
.br
|
|
The command profile to use for command configuration.
|
|
See \fBlvm.conf\fP(5) for more information about profiles.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--config\fP \fIString\fP
|
|
.br
|
|
Config settings for the command. These override lvm.conf settings.
|
|
The String arg uses the same format as lvm.conf,
|
|
or may use section/field syntax.
|
|
See \fBlvm.conf\fP(5) for more information about config.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-d\fP|\fB--debug\fP ...
|
|
.br
|
|
Set debug level. Repeat from 1 to 6 times to increase the detail of
|
|
messages sent to the log file and/or syslog (if configured).
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--driverloaded\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
If set to no, the command will not attempt to use device-mapper.
|
|
For testing and debugging.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-e\fP|\fB--exported\fP
|
|
.br
|
|
Only show PVs belonging to exported VGs.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-h\fP|\fB--help\fP
|
|
.br
|
|
Display help text.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--ignorelockingfailure\fP
|
|
.br
|
|
Allows a command to continue with read-only metadata
|
|
operations after locking failures.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--lockopt\fP \fIString\fP
|
|
.br
|
|
Used to pass options for special cases to lvmlockd.
|
|
See \fBlvmlockd\fP(8) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--longhelp\fP
|
|
.br
|
|
Display long help text.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-j\fP|\fB--major\fP \fINumber\fP
|
|
.br
|
|
The major number of a device.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--minor\fP \fINumber\fP
|
|
.br
|
|
The minor number of a device.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--nolocking\fP
|
|
.br
|
|
Disable locking.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-n\fP|\fB--novolumegroup\fP
|
|
.br
|
|
Only show PVs not belonging to any VG.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--profile\fP \fIString\fP
|
|
.br
|
|
An alias for --commandprofile or --metadataprofile, depending
|
|
on the command.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-q\fP|\fB--quiet\fP ...
|
|
.br
|
|
Suppress output and log messages. Overrides --debug and --verbose.
|
|
Repeat once to also suppress any prompts with answer 'no'.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--reportformat\fP \fBbasic\fP|\fBjson\fP
|
|
.br
|
|
Overrides current output format for reports which is defined globally by
|
|
the report/output_format setting in lvm.conf.
|
|
\fBbasic\fP is the original format with columns and rows.
|
|
If there is more than one report per command, each report is prefixed
|
|
with the report name for identification. \fBjson\fP produces report
|
|
output in JSON format. See \fBlvmreport\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-s\fP|\fB--short\fP
|
|
.br
|
|
Short listing format.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-t\fP|\fB--test\fP
|
|
.br
|
|
Run in test mode. Commands will not update metadata.
|
|
This is implemented by disabling all metadata writing but nevertheless
|
|
returning success to the calling function. This may lead to unusual
|
|
error messages in multi-stage operations if a tool relies on reading
|
|
back metadata it believes has changed but hasn't.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-u\fP|\fB--uuid\fP
|
|
.br
|
|
Show UUIDs in addition to device names.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-v\fP|\fB--verbose\fP ...
|
|
.br
|
|
Set verbose level. Repeat from 1 to 4 times to increase the detail
|
|
of messages sent to stdout and stderr.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--version\fP
|
|
.br
|
|
Display version information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-y\fP|\fB--yes\fP
|
|
.br
|
|
Do not prompt for confirmation interactively but always assume the
|
|
answer yes. Use with extreme caution.
|
|
(For automatic no, see -qq.)
|
|
.ad b
|
|
.SH VARIABLES
|
|
.HP
|
|
\fIPV\fP
|
|
.br
|
|
Physical Volume name, a device path under /dev.
|
|
For commands managing physical extents, a PV positional arg
|
|
generally accepts a suffix indicating a range (or multiple ranges)
|
|
of physical extents (PEs). When the first PE is omitted, it defaults
|
|
to the start of the device, and when the last PE is omitted it defaults to end.
|
|
Start and end range (inclusive): \fIPV\fP[\fB:\fP\fIPE\fP\fB-\fP\fIPE\fP]...
|
|
Start and length range (counting from 0): \fIPV\fP[\fB:\fP\fIPE\fP\fB+\fP\fIPE\fP]...
|
|
.HP
|
|
\fIString\fP
|
|
.br
|
|
See the option description for information about the string content.
|
|
.HP
|
|
\fISize\fP[UNIT]
|
|
.br
|
|
Size is an input number that accepts an optional unit.
|
|
Input units are always treated as base two values, regardless of
|
|
capitalization, e.g. 'k' and 'K' both refer to 1024.
|
|
The default input unit is specified by letter, followed by |UNIT.
|
|
UNIT represents other possible input units: \fBbBsSkKmMgGtTpPeE\fP.
|
|
b|B is bytes, s|S is sectors of 512 bytes, k|K is kilobytes,
|
|
m|M is megabytes, g|G is gigabytes, t|T is terabytes,
|
|
p|P is petabytes, e|E is exabytes.
|
|
(This should not be confused with the output control --units, where
|
|
capital letters mean multiple of 1000.)
|
|
.SH ENVIRONMENT VARIABLES
|
|
See \fBlvm\fP(8) for information about environment variables used by lvm.
|
|
For example, LVM_VG_NAME can generally be substituted for a required VG parameter.
|
|
.SH SEE ALSO
|
|
|
|
.BR lvm (8)
|
|
.BR lvm.conf (5)
|
|
.BR lvmconfig (8)
|
|
|
|
.BR pvchange (8)
|
|
.BR pvck (8)
|
|
.BR pvcreate (8)
|
|
.BR pvdisplay (8)
|
|
.BR pvmove (8)
|
|
.BR pvremove (8)
|
|
.BR pvresize (8)
|
|
.BR pvs (8)
|
|
.BR pvscan (8)
|
|
|
|
.BR vgcfgbackup (8)
|
|
.BR vgcfgrestore (8)
|
|
.BR vgchange (8)
|
|
.BR vgck (8)
|
|
.BR vgcreate (8)
|
|
.BR vgconvert (8)
|
|
.BR vgdisplay (8)
|
|
.BR vgexport (8)
|
|
.BR vgextend (8)
|
|
.BR vgimport (8)
|
|
.BR vgimportclone (8)
|
|
.BR vgmerge (8)
|
|
.BR vgmknodes (8)
|
|
.BR vgreduce (8)
|
|
.BR vgremove (8)
|
|
.BR vgrename (8)
|
|
.BR vgs (8)
|
|
.BR vgscan (8)
|
|
.BR vgsplit (8)
|
|
|
|
.BR lvcreate (8)
|
|
.BR lvchange (8)
|
|
.BR lvconvert (8)
|
|
.BR lvdisplay (8)
|
|
.BR lvextend (8)
|
|
.BR lvreduce (8)
|
|
.BR lvremove (8)
|
|
.BR lvrename (8)
|
|
.BR lvresize (8)
|
|
.BR lvs (8)
|
|
.BR lvscan (8)
|
|
|
|
.BR lvm-fullreport (8)
|
|
.BR lvm-lvpoll (8)
|
|
.BR lvm2-activation-generator (8)
|
|
.BR blkdeactivate (8)
|
|
.BR lvmdump (8)
|
|
|
|
.BR dmeventd (8)
|
|
.BR lvmpolld (8)
|
|
.BR lvmlockd (8)
|
|
.BR lvmlockctl (8)
|
|
.BR cmirrord (8)
|
|
.BR lvmdbusd (8)
|
|
|
|
.BR lvmsystemid (7)
|
|
.BR lvmreport (7)
|
|
.BR lvmraid (7)
|
|
.BR lvmthin (7)
|
|
.BR lvmcache (7)
|