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mirror of git://sourceware.org/git/lvm2.git synced 2025-01-18 10:04:20 +03:00

man: update man pages

Start to use 'italic' when the argument is not a fixed string.
Keep 'bold' when user cannot use any other string instead.
This commit is contained in:
Zdenek Kabelac 2015-09-21 22:45:47 +02:00
parent a61f3c5316
commit cfe869692f
3 changed files with 125 additions and 109 deletions

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@ -4,19 +4,20 @@ clvmd \(em cluster LVM daemon
.SH SYNOPSIS .SH SYNOPSIS
.B clvmd .B clvmd
.RB [ \-C ] .RB [ \-C ]
.RB [ \-d [< \fIvalue\fP >]] .RB [ \-d
.RI [ value ]]
.RB [ \-E .RB [ \-E
.RI < "lock uuid" >] .IR "lock uuid" ]
.RB [ \-f ] .RB [ \-f ]
.RB [ \-h ] .RB [ \-h ]
.RB [ \-I .RB [ \-I
.IR "cluster_manager" ] .IR "cluster manager" ]
.RB [ \-R ] .RB [ \-R ]
.RB [ \-S ] .RB [ \-S ]
.RB [ \-t .RB [ \-t
.RI < timeout >] .IR timeout ]
.RB [ \-T .RB [ \-T
.RI < "start timeout" >] .IR "start timeout" ]
.RB [ \-V ] .RB [ \-V ]
.SH DESCRIPTION .SH DESCRIPTION
clvmd is the daemon that distributes LVM metadata updates around a cluster. clvmd is the daemon that distributes LVM metadata updates around a cluster.
@ -24,17 +25,21 @@ It must be running on all nodes in the cluster and will give an error
if a node in the cluster does not have this daemon running. if a node in the cluster does not have this daemon running.
.SH OPTIONS .SH OPTIONS
.TP .TP
.BR \-d [< \fIvalue >] .BR \-d \ [ \fIvalue ]
Set debug logging level.If \fB\-d\fP is specified without a \fIvalue\fP Set debug logging level.
If \fB\-d\fP is specified without a \fIvalue\fP
then 1 is assumed. \fIValue\fP can be: then 1 is assumed. \fIValue\fP can be:
.RS .PD 0
.IP \fI0\fP .IP
Disabled .B 0
.IP \fI1\fP \(em Disabled
Sends debug logs to stderr (implies \fB\-f\fP) .IP
.IP \fI2\fP .B 1
Sends debug logs to \fBsyslog\fP(3) \(em Sends debug logs to stderr (implies \fB\-f\fP)
.RE .IP
.B 2
\(em Sends debug logs to \fBsyslog\fP(3)
.PD
.TP .TP
.B \-C .B \-C
Only valid if Only valid if
@ -55,8 +60,8 @@ enable cluster-wide logging then the command needs to be issued twice, eg:
.B clvmd \-d2 .B clvmd \-d2
.br .br
.TP .TP
.BR \-E < "\fIlock uuid" > .BR \-E "\fI lock uuid"
Pass lock uuid to be reacquired exclusively when clvmd is restarted. Pass \fIlock uuid\fP to be reacquired exclusively when clvmd is restarted.
.TP .TP
.B \-f .B \-f
Don't fork, run in the foreground. Don't fork, run in the foreground.
@ -64,13 +69,13 @@ Don't fork, run in the foreground.
.B \-h .B \-h
Show help information. Show help information.
.TP .TP
.BR \-I " \fIcluster_manager\fP" .BR \-I "\fI cluster manager"
Selects the \fIcluster manager\fP to use for locking and internal Selects the \fIcluster manager\fP to use for locking and internal
communications. As it is quite possible to have multiple managers available on communications. As it is quite possible to have multiple managers available on
the same system you might have to manually specify this option to override the the same system you might have to manually specify this option to override the
search. search.
By default, omit \fB-I\fP is equivalent to \fB\-I\fP\fIauto\fP. \fBClvmd\fP By default, omit \fB-I\fP is equivalent to \fB\-Iauto\fP. \fBClvmd\fP
will use the first cluster manager that succeeds, and it checks them in a will use the first cluster manager that succeeds, and it checks them in a
predefined order cman,corosync,openais. predefined order cman,corosync,openais.
The available managers will be listed by order as part of the The available managers will be listed by order as part of the
@ -88,13 +93,13 @@ any locks in the same state as they were previously held. (Alternative
methods of restarting the daemon have the side effect of changing methods of restarting the daemon have the side effect of changing
exclusive LV locks into shared locks.) exclusive LV locks into shared locks.)
.TP .TP
.BR \-t < \fItimeout > .BR \-t "\fI timeout"
Specifies the \fItimeout\fP for commands to run around the cluster. This should not Specifies the \fItimeout\fP for commands to run around the cluster. This should not
be so small that commands with many disk updates to do will fail, so you be so small that commands with many disk updates to do will fail, so you
may need to increase this on systems with very large disk farms. may need to increase this on systems with very large disk farms.
The default is 60 seconds. The default is 60 seconds.
.TP .TP
.BR \-T < "\fIstart timeout" > .BR \-T "\fI start timeout"
Specifies the \fIstart timeout\fP for \fBclvmd\fP daemon startup. If the Specifies the \fIstart timeout\fP for \fBclvmd\fP daemon startup. If the
daemon does not report that it has started up within this time then the parent daemon does not report that it has started up within this time then the parent
command will exit with status of 5. This does NOT mean that \fBclvmd\fP has command will exit with status of 5. This does NOT mean that \fBclvmd\fP has
@ -119,11 +124,11 @@ Display the version of the cluster LVM daemon.
.TP .TP
.B LVM_CLVMD_BINARY .B LVM_CLVMD_BINARY
The CLVMD binary to use when \fBclvmd\fP restart is requested. The CLVMD binary to use when \fBclvmd\fP restart is requested.
Defaults to #CLVMD_PATH#. Defaults to \fI#CLVMD_PATH#\fP.
.TP .TP
.B LVM_BINARY .B LVM_BINARY
The LVM2 binary to use. The LVM2 binary to use.
Defaults to #LVM_PATH#. Defaults to \fI#LVM_PATH#\fP.
.SH SEE ALSO .SH SEE ALSO
.BR syslog (3), .BR syslog (3),

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@ -9,7 +9,7 @@ dmstats \(em device-mapper statistics management
.HP .HP
.PD 0 .PD 0
.B dmstats .B dmstats
.RB < command > .I command
.RI [ device_name | \fB\-\-uuid .RI [ device_name | \fB\-\-uuid
.IR uuid | \fB\-\-major .IR uuid | \fB\-\-major
.I major .I major

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@ -6,74 +6,74 @@ lvchange \(em change attributes of a logical volume
.RB [ \-\-addtag .RB [ \-\-addtag
.IR Tag ] .IR Tag ]
.RB [ \-A | \-\-autobackup .RB [ \-A | \-\-autobackup
.RI { y | n }] .RB { y | n }]
.RB [ \-a | \-\-activate .RB [ \-a | \-\-activate
.RI [ a | e | s | l ]{ y | n }] .RB [ a ][ e | s | l ]{ y | n }]
.RB [ \-\-activationmode .RB [ \-\-activationmode
.RI { complete | degraded | partial }] .RB { complete | degraded | partial }]
.RB [ \-k | \-\-setactivationskip .RB [ \-k | \-\-setactivationskip
.RI { y | n }] .RB { y | n }]
.RB [ \-K | \-\-ignoreactivationskip ] .RB [ \-K | \-\-ignoreactivationskip ]
.RB [ \-\-alloc .RB [ \-\-alloc
.IR AllocationPolicy ] .IR AllocationPolicy ]
.RB [ \-\-cachepolicy .RB [ \-\-cachepolicy
.IR policy ] .IR policy ]
.RB [ \-\-cachesettings .RB [ \-\-cachesettings
.IR key=value ] .IR key \fB= value ]
.RB [ \-\-commandprofile .RB [ \-\-commandprofile
.IR ProfileName ] .IR ProfileName ]
.RB [ \-C | \-\-contiguous .RB [ \-C | \-\-contiguous
.RI { y | n }] .RB { y | n }]
.RB [ \-d | \-\-debug ] .RB [ \-d | \-\-debug ]
.RB [ \-\-degraded ] .RB [ \-\-degraded ]
.RB [ \-\-deltag .RB [ \-\-deltag
.IR Tag ] .IR Tag ]
.RB [ \-\-detachprofile ] .RB [ \-\-detachprofile ]
.RB [ \-\-discards .RB [ \-\-discards
.RI { ignore | nopassdown | passdown }] .RB { ignore | nopassdown | passdown }]
.RB [ \-\-errorwhenfull .RB [ \-\-errorwhenfull
.RI { y | n }] .RB { y | n }]
.RB [ \-\-resync ] .RB [ \-\-resync ]
.RB [ \-h | \-? | \-\-help ] .RB [ \-h | \-? | \-\-help ]
.RB [ \-\-ignorelockingfailure ] .RB [ \-\-ignorelockingfailure ]
.RB [ \-\-ignoremonitoring ] .RB [ \-\-ignoremonitoring ]
.RB [ \-\-ignoreskippedcluster ] .RB [ \-\-ignoreskippedcluster ]
.RB [ \-\-monitor .RB [ \-\-monitor
.RI { y | n }] .RB { y | n }]
.RB [ \-\-poll .RB [ \-\-poll
.RI { y | n }] .RB { y | n }]
.RB [ \-\-[raid]maxrecoveryrate .RB [ \-\- [ raid ] maxrecoveryrate
.IR Rate ] .IR Rate ]
.RB [ \-\-[raid]minrecoveryrate .RB [ \-\- [ raid ] minrecoveryrate
.IR Rate ] .IR Rate ]
.RB [ \-\-[raid]syncaction .RB [ \-\- [ raid ] syncaction
.RI { check | repair }] .RB { check | repair }]
.RB [ \-\-[raid]writebehind .RB [ \-\- [ raid ] writebehind
.IR IOCount ] .IR IOCount ]
.RB [ \-\-[raid]writemostly .RB [ \-\- [ raid ] writemostly
.IR PhysicalVolume [ : { y | n | t }]] .BR \fIPhysicalVolume [ : { y | n | t }]]
.RB [ \-\-sysinit ] .RB [ \-\-sysinit ]
.RB [ \-\-noudevsync ] .RB [ \-\-noudevsync ]
.RB [ \-\-metadataprofile .RB [ \-\-metadataprofile
.IR ProfileName ] .IR ProfileName ]
.RB [ \-M | \-\-persistent .RB [ \-M | \-\-persistent
.RI { y | n } .RB { y | n }
.RB [ \-\-minor .RB [ \-\-minor
.IR minor ] .IR minor ]
.RB [ \-\-major .RB [ \-\-major
.IR major ]] .IR major ]]
.RB [ \-P | \-\-partial ] .RB [ \-P | \-\-partial ]
.RB [ \-p | \-\-permission .RB [ \-p | \-\-permission
.RI { r | rw }] .RB { r | rw }]
.RB [ \-r | \-\-readahead .RB [ \-r | \-\-readahead
.RI { ReadAheadSectors | auto | none }] .RB { \fIReadAheadSectors | auto | none }]
.RB [ \-\-refresh ] .RB [ \-\-refresh ]
.RB [ \-S | \-\-select .RB [ \-S | \-\-select
.IR Selection ] .IR Selection ]
.RB [ \-t | \-\-test ] .RB [ \-t | \-\-test ]
.RB [ \-v | \-\-verbose ] .RB [ \-v | \-\-verbose ]
.RB [ \-Z | \-\-zero .RB [ \-Z | \-\-zero
.RI { y | n }] .RB { y | n }]
.RI [ LogicalVolumePath ...] .RI [ LogicalVolumePath ...]
.SH DESCRIPTION .SH DESCRIPTION
lvchange allows you to change the attributes of a logical volume lvchange allows you to change the attributes of a logical volume
@ -81,14 +81,14 @@ including making them known to the kernel ready for use.
.SH OPTIONS .SH OPTIONS
See \fBlvm\fP(8) for common options. See \fBlvm\fP(8) for common options.
.TP .TP
.BR \-a ", " \-\-activate " [" \fIa | \fIe | \fIs | \fIl ]{ \fIy | \fIn } .BR \-a ", " \-\-activate " [" a ][ e | s | l ]{ y | n }
Controls the availability of the logical volumes for use. Controls the availability of the logical volumes for use.
Communicates with the kernel device-mapper driver via Communicates with the kernel device-mapper driver via
libdevmapper to activate (\-ay) or deactivate (\-an) the libdevmapper to activate (\fB\-ay\fP) or deactivate (\fB\-an\fP) the
logical volumes. logical volumes.
.IP .IP
Activation of a logical volume creates a symbolic link Activation of a logical volume creates a symbolic link
/dev/VolumeGroupName/LogicalVolumeName pointing to the device node. \fI/dev/VolumeGroupName/LogicalVolumeName\fP pointing to the device node.
This link is removed on deactivation. This link is removed on deactivation.
All software and scripts should access the device through All software and scripts should access the device through
this symbolic link and present this as the name of the device. this symbolic link and present this as the name of the device.
@ -96,79 +96,85 @@ The location and name of the underlying device node may depend on
the distribution and configuration (e.g. udev) and might change the distribution and configuration (e.g. udev) and might change
from release to release. from release to release.
.IP .IP
If autoactivation option is used (\-aay), If autoactivation option is used (\fB\-aay\fP),
the logical volume is activated only if it matches an item in the logical volume is activated only if it matches an item in
the activation/auto_activation_volume_list set in lvm.conf. the
.B activation/auto_activation_volume_list
set in \fBlvm.conf\fP(5).
If this list is not set, then all volumes are considered for If this list is not set, then all volumes are considered for
activation. The \-aay option should be also used during system activation. The \fB\-aay\fP option should be also used during system
boot so it's possible to select which volumes to activate using boot so it's possible to select which volumes to activate using
the activation/auto_activation_volume_list setting. the
.B activation/auto_activation_volume_list
setting.
.IP .IP
In a clustered VG, clvmd is used for activation, and the In a clustered VG, clvmd is used for activation, and the
following options are possible: following options are possible:
With \-aey, clvmd activates the LV in exclusive mode With \fB\-aey\fP, clvmd activates the LV in exclusive mode
(with an exclusive lock), allowing a single node to activate the LV. (with an exclusive lock), allowing a single node to activate the LV.
With \-asy, clvmd activates the LV in shared mode With \fB\-asy\fP, clvmd activates the LV in shared mode
(with a shared lock), allowing multiple nodes to activate the LV concurrently. (with a shared lock), allowing multiple nodes to activate the LV concurrently.
If the LV type prohibits shared access, such as an LV with a snapshot, If the LV type prohibits shared access, such as an LV with a snapshot,
the 's' option is ignored and an exclusive lock is used. the '\fBs\fP' option is ignored and an exclusive lock is used.
With \-ay (no mode specified), clvmd activates the LV in shared mode With \fB\-ay\fP (no mode specified), clvmd activates the LV in shared mode
if the LV type allows concurrent access, such as a linear LV. if the LV type allows concurrent access, such as a linear LV.
Otherwise, clvmd activates the LV in exclusive mode. Otherwise, clvmd activates the LV in exclusive mode.
With \-aey, \-asy, and \-ay, clvmd attempts to activate the LV With \fB\-aey\fP, \fB\-asy\fP, and \fB\-ay\fP, clvmd attempts to activate the LV
on all nodes. If exclusive mode is used, then only one of the on all nodes. If exclusive mode is used, then only one of the
nodes will be successful. nodes will be successful.
With \-an, clvmd attempts to deactivate the LV on all nodes. With \fB\-an\fP, clvmd attempts to deactivate the LV on all nodes.
With \-aly, clvmd activates the LV only on the local node, and \-aln With \fB\-aly\fP, clvmd activates the LV only on the local node, and \fB\-aln\fP
deactivates only on the local node. If the LV type allows concurrent deactivates only on the local node. If the LV type allows concurrent
access, then shared mode is used, otherwise exclusive. access, then shared mode is used, otherwise exclusive.
LVs with snapshots are always activated exclusively because they can only LVs with snapshots are always activated exclusively because they can only
be used on one node at once. be used on one node at once.
For local VGs, \-ay, \-aey, and \-asy are all equivalent. For local VGs \fB\-ay\fP, \fB\-aey\fP, and \fB\-asy\fP are all equivalent.
.TP .TP
.BR \-\-activationmode " {" \fIcomplete | \fIdegraded | \fIpartial } .BR \-\-activationmode " {" complete | degraded | partial }
The activation mode determines whether logical volumes are allowed to The activation mode determines whether logical volumes are allowed to
activate when there are physical volumes missing (e.g. due to a device activate when there are physical volumes missing (e.g. due to a device
failure). \fIcomplete\fP is the most restrictive; allowing only those failure). \fBcomplete\fP is the most restrictive; allowing only those
logical volumes to be activated that are not affected by the missing logical volumes to be activated that are not affected by the missing
PVs. \fIdegraded\fP allows RAID logical volumes to be activated even if PVs. \fBdegraded\fP allows RAID logical volumes to be activated even if
they have PVs missing. (Note that the "\fImirror\fP" segment type is not they have PVs missing. (Note that the "\fImirror\fP" segment type is not
considered a RAID logical volume. The "\fIraid1\fP" segment type should considered a RAID logical volume. The "\fIraid1\fP" segment type should
be used instead.) Finally, \fIpartial\fP allows any logical volume to be used instead.) Finally, \fBpartial\fP allows any logical volume to
be activated even if portions are missing due to a missing or failed be activated even if portions are missing due to a missing or failed
PV. This last option should only be used when performing recovery or PV. This last option should only be used when performing recovery or
repair operations. \fIdegraded\fP is the default mode. To change it, modify repair operations. \fBdegraded\fP is the default mode. To change it, modify
.B activation_mode .B activation_mode
in in
.BR lvm.conf (5). .BR lvm.conf (5).
.TP .TP
.BR \-k ", " \-\-setactivationskip " {" \fIy | \fIn } .BR \-k ", " \-\-setactivationskip " {" y | n }
Controls whether Logical Volumes are persistently flagged to be Controls whether Logical Volumes are persistently flagged to be
skipped during activation. By default, thin snapshot volumes are skipped during activation. By default, thin snapshot volumes are
flagged for activation skip. To activate such volumes, flagged for activation skip. To activate such volumes,
an extra \fB\-K/\-\-ignoreactivationskip\fP option must be used. an extra
.BR \-K / \-\-ignoreactivationskip
option must be used.
The flag is not applied during deactivation. To see whether The flag is not applied during deactivation. To see whether
the flag is attached, use \fBlvs\fP command where the state the flag is attached, use \fBlvs\fP(8) command where the state
of the flag is reported within \fBlv_attr\fP bits. of the flag is reported within \fBlv_attr\fP bits.
.TP .TP
.BR \-K ", " \-\-ignoreactivationskip .BR \-K ", " \-\-ignoreactivationskip
Ignore the flag to skip Logical Volumes during activation. Ignore the flag to skip Logical Volumes during activation.
.TP .TP
.BR \-\-cachepolicy " " policy ", " \-\-cachesettings " " key=value .BR \-\-cachepolicy " " \fIpolicy ", " \-\-cachesettings " " \fIkey = \fIvalue
Only applicable to cached LVs; see also \fBlvmcache(7)\fP. Sets Only applicable to cached LVs; see also \fBlvmcache(7)\fP. Sets
the cache policy and its associated tunable settings. In most use-cases, the cache policy and its associated tunable settings. In most use-cases,
default values should be adequate. default values should be adequate.
.TP .TP
.BR \-C ", " \-\-contiguous " {" \fIy | \fIn } .BR \-C ", " \-\-contiguous " {" y | n }
Tries to set or reset the contiguous allocation policy for Tries to set or reset the contiguous allocation policy for
logical volumes. It's only possible to change a non-contiguous logical volumes. It's only possible to change a non-contiguous
logical volume's allocation policy to contiguous, if all of the logical volume's allocation policy to contiguous, if all of the
@ -177,17 +183,17 @@ allocated physical extents are already contiguous.
.BR \-\-detachprofile .BR \-\-detachprofile
Detach any metadata configuration profiles attached to given Detach any metadata configuration profiles attached to given
Logical Volumes. See \fBlvm.conf\fP(5) for more information Logical Volumes. See \fBlvm.conf\fP(5) for more information
about \fBmetadata profiles\fP. about metadata profiles.
.TP .TP
.BR \-\-discards " {" \fIignore | \fInopassdown | \fIpassdown } .BR \-\-discards " {" ignore | nopassdown | passdown }
Set this to \fIignore\fP to ignore any discards received by a Set this to \fBignore\fP to ignore any discards received by a
thin pool Logical Volume. Set to \fInopassdown\fP to process such thin pool Logical Volume. Set to \fBnopassdown\fP to process such
discards within the thin pool itself and allow the no-longer-needed discards within the thin pool itself and allow the no-longer-needed
extents to be overwritten by new data. Set to \fIpassdown\fP (the extents to be overwritten by new data. Set to \fBpassdown\fP (the
default) to process them both within the thin pool itself and to default) to process them both within the thin pool itself and to
pass them down the underlying device. pass them down the underlying device.
.TP .TP
.BR \-\-errorwhenfull " {" \fIy | \fIn } .BR \-\-errorwhenfull " {" y | n }
Sets thin pool behavior when data space is exhaused. See Sets thin pool behavior when data space is exhaused. See
.BR lvcreate (8) .BR lvcreate (8)
for information. for information.
@ -201,11 +207,11 @@ time - and during this time you are without a complete redundant copy
of your data. of your data.
.TP .TP
.B \-\-metadataprofile " " \fIProfileName .B \-\-metadataprofile " " \fIProfileName
Uses and attaches ProfileName configuration profile to the logical Uses and attaches \fIProfileName\fP configuration profile to the logical
volume metadata. Whenever the logical volume is processed next time, volume metadata. Whenever the logical volume is processed next time,
the profile is automatically applied. If the volume group has another the profile is automatically applied. If the volume group has another
profile attached, the logical volume profile is preferred. profile attached, the logical volume profile is preferred.
See \fBlvm.conf\fP(5) for more information about \fBmetadata profiles\fP. See \fBlvm.conf\fP(5) for more information about metadata profiles.
.TP .TP
.B \-\-minor \fIminor .B \-\-minor \fIminor
Set the minor number. Set the minor number.
@ -215,15 +221,15 @@ Sets the major number. This option is supported only on older systems
(kernel version 2.4) and is ignored on modern Linux systems where major (kernel version 2.4) and is ignored on modern Linux systems where major
numbers are dynamically assigned. numbers are dynamically assigned.
.TP .TP
.BR \-\-monitor " {" \fIy | \fIn } .BR \-\-monitor " {" y | n }
Start or stop monitoring a mirrored or snapshot logical volume with Start or stop monitoring a mirrored or snapshot logical volume with
dmeventd, if it is installed. dmeventd, if it is installed.
If a device used by a monitored mirror reports an I/O error, If a device used by a monitored mirror reports an I/O error,
the failure is handled according to the failure is handled according to
\fBmirror_image_fault_policy\fP and \fBmirror_log_fault_policy\fP \fBmirror_image_fault_policy\fP and \fBmirror_log_fault_policy\fP
set in \fBlvm.conf\fP. set in \fBlvm.conf\fP(5).
.TP .TP
.BR \-\-poll " {" \fIy | \fIn } .BR \-\-poll " {" y | n }
Without polling a logical volume's backgrounded transformation process Without polling a logical volume's backgrounded transformation process
will never complete. If there is an incomplete pvmove or lvconvert (for will never complete. If there is an incomplete pvmove or lvconvert (for
example, on rebooting after a crash), use \fB\-\-poll y\fP to restart the example, on rebooting after a crash), use \fB\-\-poll y\fP to restart the
@ -231,46 +237,46 @@ process from its last checkpoint. However, it may not be appropriate to
immediately poll a logical volume when it is activated, use immediately poll a logical volume when it is activated, use
\fB\-\-poll n\fP to defer and then \fB\-\-poll y\fP to restart the process. \fB\-\-poll n\fP to defer and then \fB\-\-poll y\fP to restart the process.
.TP .TP
.IR \fB\-\-[raid]maxrecoveryrate " " \fIRate [ bBsSkKmMgG ] .BR \-\- [ raid ] maxrecoveryrate " " \fIRate [ bBsSkKmMgG ]
Sets the maximum recovery rate for a RAID logical volume. \fIRate\fP Sets the maximum recovery rate for a RAID logical volume. \fIRate\fP
is specified as an amount per second for each device in the array. is specified as an amount per second for each device in the array.
If no suffix is given, then KiB/sec/device is assumed. Setting the If no suffix is given, then KiB/sec/device is assumed. Setting the
recovery rate to 0 means it will be unbounded. recovery rate to \fB0\fP means it will be unbounded.
.TP .TP
.IR \fB\-\-[raid]minrecoveryrate " " \fIRate [ bBsSkKmMgG ] .BR \-\- [ raid ] minrecoveryrate " " \fIRate [ bBsSkKmMgG ]
Sets the minimum recovery rate for a RAID logical volume. \fIRate\fP Sets the minimum recovery rate for a RAID logical volume. \fIRate\fP
is specified as an amount per second for each device in the array. is specified as an amount per second for each device in the array.
If no suffix is given, then KiB/sec/device is assumed. Setting the If no suffix is given, then KiB/sec/device is assumed. Setting the
recovery rate to 0 means it will be unbounded. recovery rate to \fB0\fP means it will be unbounded.
.TP .TP
.BR \-\-[raid]syncaction " {" \fIcheck | \fIrepair } .BR \-\- [ raid ] syncaction " {" check | repair }
This argument is used to initiate various RAID synchronization operations. This argument is used to initiate various RAID synchronization operations.
The \fIcheck\fP and \fIrepair\fP options provide a way to check the The \fBcheck\fP and \fBrepair\fP options provide a way to check the
integrity of a RAID logical volume (often referred to as "scrubbing"). integrity of a RAID logical volume (often referred to as "scrubbing").
These options cause the RAID logical volume to These options cause the RAID logical volume to
read all of the data and parity blocks in the array and check for any read all of the data and parity blocks in the array and check for any
discrepancies (e.g. mismatches between mirrors or incorrect parity values). discrepancies (e.g. mismatches between mirrors or incorrect parity values).
If \fIcheck\fP is used, the discrepancies will be counted but not repaired. If \fBcheck\fP is used, the discrepancies will be counted but not repaired.
If \fIrepair\fP is used, the discrepancies will be corrected as they are If \fBrepair\fP is used, the discrepancies will be corrected as they are
encountered. The 'lvs' command can be used to show the number of encountered. The \fBlvs\fP(8) command can be used to show the number of
discrepancies found or repaired. discrepancies found or repaired.
.TP .TP
.BR \-\-[raid]writebehind " " \fIIOCount .BR \-\- [ raid ] writebehind " " \fIIOCount
Specify the maximum number of outstanding writes that are allowed to Specify the maximum number of outstanding writes that are allowed to
devices in a RAID1 logical volume that are marked as \fIwrite-mostly\fP. devices in a RAID1 logical volume that are marked as write-mostly.
Once this value is exceeded, writes become synchronous (i.e. all writes Once this value is exceeded, writes become synchronous (i.e. all writes
to the constituent devices must complete before the array signals the to the constituent devices must complete before the array signals the
write has completed). Setting the value to zero clears the preference write has completed). Setting the value to zero clears the preference
and allows the system to choose the value arbitrarily. and allows the system to choose the value arbitrarily.
.TP .TP
.IR \fB\-\-[raid]writemostly " " PhysicalVolume [ : { y | n | t }] .BR \-\- [ raid ] writemostly " " \fIPhysicalVolume [ : { y | n | t }]
Mark a device in a RAID1 logical volume as \fIwrite-mostly\fP. All reads Mark a device in a RAID1 logical volume as write-mostly. All reads
to these drives will be avoided unless absolutely necessary. This keeps to these drives will be avoided unless absolutely necessary. This keeps
the number of I/Os to the drive to a minimum. The default behavior is to the number of I/Os to the drive to a minimum. The default behavior is to
set the write-mostly attribute for the specified physical volume in the set the write-mostly attribute for the specified physical volume in the
logical volume. It is possible to also remove the write-mostly flag by logical volume. It is possible to also remove the write-mostly flag by
appending a "\fI:n\fP" to the physical volume or to toggle the value by specifying appending a "\fB:n\fP" to the physical volume or to toggle the value by specifying
"\fI:t\fP". The \fB\-\-writemostly\fP argument can be specified more than one time "\fB:t\fP". The \fB\-\-writemostly\fP argument can be specified more than one time
in a single command; making it possible to toggle the write-mostly attributes in a single command; making it possible to toggle the write-mostly attributes
for all the physical volumes in a logical volume at once. for all the physical volumes in a logical volume at once.
.TP .TP
@ -285,10 +291,12 @@ this is equivalent to using \fB\-\-ignorelockingfailure\fP,
\fBLVM_SUPPRESS_LOCKING_FAILURE_MESSAGES\fP \fBLVM_SUPPRESS_LOCKING_FAILURE_MESSAGES\fP
environment variable. environment variable.
If \fB\-\-sysinit\fP is used in conjunction with lvmetad(8) enabled and running, If \fB\-\-sysinit\fP is used in conjunction with
\fBlvmetad\fP(8) enabled and running,
autoactivation is preferred over manual activation via direct lvchange call. autoactivation is preferred over manual activation via direct lvchange call.
Logical volumes are autoactivated according to auto_activation_volume_list Logical volumes are autoactivated according to
set in lvm.conf(5). .B auto_activation_volume_list
set in \fBlvm.conf\fP(5).
.TP .TP
.B \-\-noudevsync .B \-\-noudevsync
Disable udev synchronisation. The Disable udev synchronisation. The
@ -302,20 +310,20 @@ Make no attempt to interact with dmeventd unless \fB\-\-monitor\fP
is specified. is specified.
Do not use this if dmeventd is already monitoring a device. Do not use this if dmeventd is already monitoring a device.
.TP .TP
.BR \-M ", " \-\-persistent " {" \fIy | \fIn } .BR \-M ", " \-\-persistent " {" y | n }
Set to y to make the minor number specified persistent. Set to \fBy\fP to make the minor number specified persistent.
Change of persistent numbers is not supported for pool volumes. Change of persistent numbers is not supported for pool volumes.
.TP .TP
.BR \-p ", " \-\-permission " {" \fIr | \fIrw } .BR \-p ", " \-\-permission " {" r | rw }
Change access permission to read-only or read/write. Change access permission to read-only or read/write.
.TP .TP
.BR \-r ", " \-\-readahead " {" \fIReadAheadSectors | \fIauto | \fInone } .BR \-r ", " \-\-readahead " {" \fIReadAheadSectors | auto | none }
Set read ahead sector count of this logical volume. Set read ahead sector count of this logical volume.
For volume groups with metadata in lvm1 format, this must For volume groups with metadata in lvm1 format, this must
be a value between 2 and 120 sectors. be a value between 2 and 120 sectors.
The default value is "auto" which allows the kernel to choose The default value is "\fBauto\fP" which allows the kernel to choose
a suitable value automatically. a suitable value automatically.
"None" is equivalent to specifying zero. "\fBnone\fP" is equivalent to specifying zero.
.TP .TP
.B \-\-refresh .B \-\-refresh
If the logical volume is active, reload its metadata. If the logical volume is active, reload its metadata.
@ -323,10 +331,10 @@ This is not necessary in normal operation, but may be useful
if something has gone wrong or if you're doing clustering if something has gone wrong or if you're doing clustering
manually without a clustered lock manager. manually without a clustered lock manager.
.TP .TP
.BR \-Z ", " \-\-zero " {" \fIy | \fIn } .BR \-Z ", " \-\-zero " {" y | n }
Set zeroing mode for thin pool. Note: already provisioned blocks from pool Set zeroing mode for thin pool. Note: already provisioned blocks from pool
in non-zero mode are not cleared in unwritten parts when setting zero to in non-zero mode are not cleared in unwritten parts when setting zero to
\fIy\fP. \fBy\fP.
.SH ENVIRONMENT VARIABLES .SH ENVIRONMENT VARIABLES
.TP .TP
.B LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES .B LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES
@ -337,7 +345,10 @@ Changes the permission on volume lvol1 in volume group vg00 to be read-only:
.B lvchange \-pr vg00/lvol1 .B lvchange \-pr vg00/lvol1
.SH SEE ALSO .SH SEE ALSO
.BR lvm (8), .BR lvm (8),
.BR lvmetad (8),
.BR lvs (8),
.BR lvcreate (8),
.BR vgchange (8),
.BR lvmcache (7), .BR lvmcache (7),
.BR lvmthin (7), .BR lvmthin (7),
.BR lvcreate (8), .BR lvm.conf (5)
.BR vgchange (8)