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1292 lines
29 KiB
Plaintext
1292 lines
29 KiB
Plaintext
.TH LVCHANGE 8 "LVM TOOLS #VERSION#" "Red Hat, Inc."
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.SH NAME
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lvchange - Change the attributes of logical volume(s)
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.
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.SH SYNOPSIS
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\fBlvchange\fP \fIoption_args\fP \fIposition_args\fP
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.br
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[ \fIoption_args\fP ]
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.br
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.P
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.ad l
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\fB-a\fP|\fB--activate\fP \fBy\fP|\fBn\fP|\fBay\fP
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.ad b
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.br
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.ad l
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\fB--activationmode\fP \fBpartial\fP|\fBdegraded\fP|\fBcomplete\fP
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.ad b
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.br
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.ad l
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\fB--addtag\fP \fITag\fP
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.ad b
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.br
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.ad l
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\fB--alloc\fP \fBcontiguous\fP|\fBcling\fP|\fBcling_by_tags\fP|\fBnormal\fP|\fBanywhere\fP|\fBinherit\fP
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.ad b
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.br
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.ad l
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\fB-A\fP|\fB--autobackup\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB--cachemode\fP \fBwritethrough\fP|\fBwriteback\fP|\fBpassthrough\fP
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.ad b
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.br
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.ad l
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\fB--cachepolicy\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB--cachesettings\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB--commandprofile\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB--compression\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB--config\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB-C\fP|\fB--contiguous\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB-d\fP|\fB--debug\fP
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.ad b
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.br
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.ad l
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\fB--deduplication\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB--deltag\fP \fITag\fP
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.ad b
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.br
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.ad l
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\fB--detachprofile\fP
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.ad b
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.br
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.ad l
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\fB--devices\fP \fIPV\fP
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.ad b
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.br
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.ad l
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\fB--devicesfile\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB--discards\fP \fBpassdown\fP|\fBnopassdown\fP|\fBignore\fP
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.ad b
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.br
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.ad l
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\fB--driverloaded\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB--errorwhenfull\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB-f\fP|\fB--force\fP
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.ad b
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.br
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.ad l
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\fB-h\fP|\fB--help\fP
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.ad b
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.br
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.ad l
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\fB-K\fP|\fB--ignoreactivationskip\fP
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.ad b
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.br
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.ad l
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\fB--ignorelockingfailure\fP
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.ad b
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.br
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.ad l
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\fB--ignoremonitoring\fP
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.ad b
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.br
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.ad l
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\fB--lockopt\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB--longhelp\fP
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.ad b
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.br
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.ad l
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\fB-j\fP|\fB--major\fP \fINumber\fP
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.ad b
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.br
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.ad l
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\fB--[raid]maxrecoveryrate\fP \fISize\fP[k|UNIT]
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.ad b
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.br
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.ad l
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\fB--metadataprofile\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB--minor\fP \fINumber\fP
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.ad b
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.br
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.ad l
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\fB--[raid]minrecoveryrate\fP \fISize\fP[k|UNIT]
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.ad b
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.br
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.ad l
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\fB--monitor\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB--nolocking\fP
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.ad b
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.br
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.ad l
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\fB--noudevsync\fP
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.ad b
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.br
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.ad l
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\fB-P\fP|\fB--partial\fP
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.ad b
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.br
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.ad l
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\fB-p\fP|\fB--permission\fP \fBrw\fP|\fBr\fP
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.ad b
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.br
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.ad l
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\fB-M\fP|\fB--persistent\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB--poll\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB--profile\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB-q\fP|\fB--quiet\fP
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.ad b
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.br
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.ad l
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\fB-r\fP|\fB--readahead\fP \fBauto\fP|\fBnone\fP|\fINumber\fP
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.ad b
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.br
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.ad l
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\fB--readonly\fP
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.ad b
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.br
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.ad l
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\fB--rebuild\fP \fIPV\fP
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.ad b
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.br
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.ad l
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\fB--refresh\fP
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.ad b
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.br
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.ad l
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\fB--reportformat\fP \fBbasic\fP|\fBjson\fP
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.ad b
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.br
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.ad l
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\fB--resync\fP
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.ad b
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.br
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.ad l
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\fB-S\fP|\fB--select\fP \fIString\fP
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.ad b
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.br
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.ad l
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\fB-k\fP|\fB--setactivationskip\fP \fBy\fP|\fBn\fP
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.ad b
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.br
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.ad l
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\fB--[raid]syncaction\fP \fBcheck\fP|\fBrepair\fP
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.ad b
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.br
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.ad l
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\fB--sysinit\fP
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.ad b
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.br
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.ad l
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\fB-t\fP|\fB--test\fP
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.ad b
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.br
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.ad l
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\fB-v\fP|\fB--verbose\fP
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.ad b
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.br
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.ad l
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\fB--version\fP
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.ad b
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.br
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.ad l
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\fB--[raid]writebehind\fP \fINumber\fP
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.ad b
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.br
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.ad l
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\fB--[raid]writemostly\fP \fIPV\fP[\fB:t\fP|\fBn\fP|\fBy\fP]
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.ad b
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.br
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.ad l
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\fB-y\fP|\fB--yes\fP
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.ad b
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.br
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.ad l
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\fB-Z\fP|\fB--zero\fP \fBy\fP|\fBn\fP
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.ad b
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.SH DESCRIPTION
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lvchange changes LV attributes in the VG, changes LV activation in the
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kernel, and includes other utilities for LV maintenance.
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.SH USAGE
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Change a general LV attribute.
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.br
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For options listed in parentheses, any one is
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.br
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required, after which the others are optional.
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.br
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.P
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\fBlvchange\fP
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.RS 4
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( \fB-C\fP|\fB--contiguous\fP \fBy\fP|\fBn\fP,
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.ad b
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.br
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.ad l
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\fB-p\fP|\fB--permission\fP \fBrw\fP|\fBr\fP,
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.ad b
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.br
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.ad l
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\fB-r\fP|\fB--readahead\fP \fBauto\fP|\fBnone\fP|\fINumber\fP,
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.ad b
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.br
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.ad l
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\fB-k\fP|\fB--setactivationskip\fP \fBy\fP|\fBn\fP,
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.ad b
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.br
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.ad l
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\fB-Z\fP|\fB--zero\fP \fBy\fP|\fBn\fP,
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.ad b
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.br
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.ad l
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\fB-M\fP|\fB--persistent\fP \fBn\fP,
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.ad b
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.br
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.ad l
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\fB--addtag\fP \fITag\fP,
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.ad b
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.br
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.ad l
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\fB--deltag\fP \fITag\fP,
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.ad b
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.br
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.ad l
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\fB--alloc\fP \fBcontiguous\fP|\fBcling\fP|\fBcling_by_tags\fP|\fBnormal\fP|\fBanywhere\fP|\fBinherit\fP,
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.ad b
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.br
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.ad l
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\fB--compression\fP \fBy\fP|\fBn\fP,
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.ad b
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.br
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.ad l
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\fB--deduplication\fP \fBy\fP|\fBn\fP,
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.ad b
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.br
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.ad l
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\fB--detachprofile\fP,
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.ad b
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.br
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.ad l
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\fB--metadataprofile\fP \fIString\fP,
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.ad b
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.br
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.ad l
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\fB--profile\fP \fIString\fP,
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.ad b
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.br
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.ad l
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\fB--errorwhenfull\fP \fBy\fP|\fBn\fP,
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.ad b
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.br
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.ad l
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\fB--discards\fP \fBpassdown\fP|\fBnopassdown\fP|\fBignore\fP,
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.ad b
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.br
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.ad l
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\fB--cachemode\fP \fBwritethrough\fP|\fBwriteback\fP|\fBpassthrough\fP,
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.ad b
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.br
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.ad l
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\fB--cachepolicy\fP \fIString\fP,
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.ad b
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.br
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.ad l
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\fB--cachesettings\fP \fIString\fP,
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.ad b
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.br
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.ad l
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\fB--[raid]minrecoveryrate\fP \fISize\fP[k|UNIT],
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.ad b
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.br
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.ad l
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\fB--[raid]maxrecoveryrate\fP \fISize\fP[k|UNIT],
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.ad b
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.br
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.ad l
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\fB--[raid]writebehind\fP \fINumber\fP,
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.ad b
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.br
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.ad l
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\fB--[raid]writemostly\fP \fIPV\fP[\fB:t\fP|\fBn\fP|\fBy\fP] )
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.RE
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.RS 4
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\fIVG\fP|\fILV\fP|\fITag\fP|\fISelect\fP ...
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.RE
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.br
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.RS 4
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.ad l
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[ \fB-a\fP|\fB--activate\fP \fBy\fP|\fBn\fP|\fBay\fP ]
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.ad b
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.br
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.ad l
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[ \fB--poll\fP \fBy\fP|\fBn\fP ]
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.ad b
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.br
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.ad l
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[ \fB--monitor\fP \fBy\fP|\fBn\fP ]
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.ad b
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.br
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[ COMMON_OPTIONS ]
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.RE
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.br
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-
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Resyncronize a mirror or raid LV.
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.br
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Use to reset 'R' attribute on a not initially synchronized LV.
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.br
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.P
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\fBlvchange\fP \fB--resync\fP \fIVG\fP|\fILV\fP\fI_mirror_raid\fP|\fITag\fP|\fISelect\fP ...
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.br
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.RS 4
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.ad l
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[ \fB-a\fP|\fB--activate\fP \fBy\fP|\fBn\fP|\fBay\fP ]
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.ad b
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.br
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[ COMMON_OPTIONS ]
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.RE
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.br
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-
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Resynchronize or check a raid LV.
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.br
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.P
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\fBlvchange\fP \fB--syncaction\fP \fBcheck\fP|\fBrepair\fP \fIVG\fP|\fILV\fP\fI_raid\fP|\fITag\fP|\fISelect\fP ...
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.br
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.RS 4
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[ COMMON_OPTIONS ]
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.RE
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.br
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-
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Reconstruct data on specific PVs of a raid LV.
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.br
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.P
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\fBlvchange\fP \fB--rebuild\fP \fIPV\fP \fIVG\fP|\fILV\fP\fI_raid\fP|\fITag\fP|\fISelect\fP ...
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.br
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.RS 4
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[ COMMON_OPTIONS ]
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.RE
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.br
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-
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Activate or deactivate an LV.
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.br
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.P
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\fBlvchange\fP \fB-a\fP|\fB--activate\fP \fBy\fP|\fBn\fP|\fBay\fP \fIVG\fP|\fILV\fP|\fITag\fP|\fISelect\fP ...
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.br
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.RS 4
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.ad l
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[ \fB-P\fP|\fB--partial\fP ]
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.ad b
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.br
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.ad l
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[ \fB-K\fP|\fB--ignoreactivationskip\fP ]
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.ad b
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.br
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.ad l
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[ \fB--activationmode\fP \fBpartial\fP|\fBdegraded\fP|\fBcomplete\fP ]
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.ad b
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.br
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.ad l
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[ \fB--poll\fP \fBy\fP|\fBn\fP ]
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.ad b
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.br
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.ad l
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[ \fB--monitor\fP \fBy\fP|\fBn\fP ]
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.ad b
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.br
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.ad l
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[ \fB--ignorelockingfailure\fP ]
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.ad b
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.br
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.ad l
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[ \fB--sysinit\fP ]
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.ad b
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.br
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.ad l
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[ \fB--readonly\fP ]
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.ad b
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.br
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[ COMMON_OPTIONS ]
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.RE
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.br
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-
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Reactivate an LV using the latest metadata.
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.br
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.P
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\fBlvchange\fP \fB--refresh\fP \fIVG\fP|\fILV\fP|\fITag\fP|\fISelect\fP ...
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.br
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.RS 4
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.ad l
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[ \fB-P\fP|\fB--partial\fP ]
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.ad b
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.br
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.ad l
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[ \fB--activationmode\fP \fBpartial\fP|\fBdegraded\fP|\fBcomplete\fP ]
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.ad b
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.br
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.ad l
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[ \fB--poll\fP \fBy\fP|\fBn\fP ]
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.ad b
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.br
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.ad l
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[ \fB--monitor\fP \fBy\fP|\fBn\fP ]
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.ad b
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.br
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[ COMMON_OPTIONS ]
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.RE
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.br
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-
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Start or stop monitoring an LV from dmeventd.
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.br
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.P
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\fBlvchange\fP \fB--monitor\fP \fBy\fP|\fBn\fP \fIVG\fP|\fILV\fP|\fITag\fP|\fISelect\fP ...
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.br
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.RS 4
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[ COMMON_OPTIONS ]
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.RE
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.br
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-
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Start or stop processing an LV conversion.
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.br
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.P
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\fBlvchange\fP \fB--poll\fP \fBy\fP|\fBn\fP \fIVG\fP|\fILV\fP|\fITag\fP|\fISelect\fP ...
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.br
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.RS 4
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.ad l
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[ \fB--monitor\fP \fBy\fP|\fBn\fP ]
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.ad b
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.br
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[ COMMON_OPTIONS ]
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.RE
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.br
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-
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Make the minor device number persistent for an LV.
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.br
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.P
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\fBlvchange\fP \fB-M\fP|\fB--persistent\fP \fBy\fP \fB--minor\fP \fINumber\fP \fILV\fP
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.br
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.RS 4
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.ad l
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[ \fB-j\fP|\fB--major\fP \fINumber\fP ]
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.ad b
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.br
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.ad l
|
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[ \fB-a\fP|\fB--activate\fP \fBy\fP|\fBn\fP|\fBay\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--poll\fP \fBy\fP|\fBn\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--monitor\fP \fBy\fP|\fBn\fP ]
|
|
.ad b
|
|
.br
|
|
[ COMMON_OPTIONS ]
|
|
.RE
|
|
.br
|
|
-
|
|
|
|
Common options for command:
|
|
.
|
|
.RS 4
|
|
.ad l
|
|
[ \fB-A\fP|\fB--autobackup\fP \fBy\fP|\fBn\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-f\fP|\fB--force\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB-S\fP|\fB--select\fP \fIString\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--ignoremonitoring\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--noudevsync\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--devices\fP \fIPV\fP ]
|
|
.ad b
|
|
.br
|
|
.ad l
|
|
[ \fB--devicesfile\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
|
|
Change the active state of LVs.
|
|
An active LV can be used through a block device,
|
|
allowing data on the LV to be accessed.
|
|
\fBy\fP makes LVs active, or available.
|
|
\fBn\fP makes LVs inactive, or unavailable.
|
|
The block device for the LV is added or removed from the system
|
|
using device-mapper in the kernel.
|
|
A symbolic link /dev/VGName/LVName pointing to the device node is also added/removed.
|
|
All software and scripts should access the device through the symbolic
|
|
link and present this as the name of the device.
|
|
The location and name of the underlying device node may depend on
|
|
the distribution, configuration (e.g. udev), or release version.
|
|
\fBay\fP specifies autoactivation, in which case an LV is activated
|
|
only if it matches an item in lvm.conf activation/auto_activation_volume_list.
|
|
If the list is not set, all LVs are considered to match, and if
|
|
if the list is set but empty, no LVs match.
|
|
Autoactivation should be used during system boot to make it possible
|
|
to select which LVs should be automatically activated by the system.
|
|
See \fBlvmlockd\fP(8) for more information about activation options \fBey\fP and \fBsy\fP for shared VGs.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--activationmode\fP \fBpartial\fP|\fBdegraded\fP|\fBcomplete\fP
|
|
.br
|
|
Determines if LV activation is allowed when PVs are missing,
|
|
e.g. because of a device failure.
|
|
\fBcomplete\fP only allows LVs with no missing PVs to be activated,
|
|
and is the most restrictive mode.
|
|
\fBdegraded\fP allows RAID LVs with missing PVs to be activated.
|
|
(This does not include the "mirror" type, see "raid1" instead.)
|
|
\fBpartial\fP allows any LV with missing PVs to be activated, and
|
|
should only be used for recovery or repair.
|
|
For default, see lvm.conf/activation_mode.
|
|
See \fBlvmraid\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--addtag\fP \fITag\fP
|
|
.br
|
|
Adds a tag to a PV, VG or LV. This option can be repeated to add
|
|
multiple tags at once. See \fBlvm\fP(8) for information about tags.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--alloc\fP \fBcontiguous\fP|\fBcling\fP|\fBcling_by_tags\fP|\fBnormal\fP|\fBanywhere\fP|\fBinherit\fP
|
|
.br
|
|
Determines the allocation policy when a command needs to allocate
|
|
Physical Extents (PEs) from the VG. Each VG and LV has an allocation policy
|
|
which can be changed with vgchange/lvchange, or overridden on the
|
|
command line.
|
|
\fBnormal\fP applies common sense rules such as not placing parallel stripes
|
|
on the same PV.
|
|
\fBinherit\fP applies the VG policy to an LV.
|
|
\fBcontiguous\fP requires new PEs be placed adjacent to existing PEs.
|
|
\fBcling\fP places new PEs on the same PV as existing PEs in the same
|
|
stripe of the LV.
|
|
If there are sufficient PEs for an allocation, but normal does not
|
|
use them, \fBanywhere\fP will use them even if it reduces performance,
|
|
e.g. by placing two stripes on the same PV.
|
|
Optional positional PV args on the command line can also be used to limit
|
|
which PVs the command will use for allocation.
|
|
See \fBlvm\fP(8) for more information about allocation.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-A\fP|\fB--autobackup\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
Specifies if metadata should be backed up automatically after a change.
|
|
Enabling this is strongly advised! See \fBvgcfgbackup\fP(8) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--cachemode\fP \fBwritethrough\fP|\fBwriteback\fP|\fBpassthrough\fP
|
|
.br
|
|
Specifies when writes to a cache LV should be considered complete.
|
|
\fBwriteback\fP considers a write complete as soon as it is
|
|
stored in the cache pool.
|
|
\fBwritethough\fP considers a write complete only when it has
|
|
been stored in both the cache pool and on the origin LV.
|
|
While writethrough may be slower for writes, it is more
|
|
resilient if something should happen to a device associated with the
|
|
cache pool LV. With \fBpassthrough\fP, all reads are served
|
|
from the origin LV (all reads miss the cache) and all writes are
|
|
forwarded to the origin LV; additionally, write hits cause cache
|
|
block invalidates. See \fBlvmcache\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--cachepolicy\fP \fIString\fP
|
|
.br
|
|
Specifies the cache policy for a cache LV.
|
|
See \fBlvmcache\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--cachesettings\fP \fIString\fP
|
|
.br
|
|
Specifies tunable values for a cache LV in "Key = Value" form.
|
|
Repeat this option to specify multiple values.
|
|
(The default values should usually be adequate.)
|
|
The special string value \fBdefault\fP switches
|
|
settings back to their default kernel values and removes
|
|
them from the list of settings stored in LVM metadata.
|
|
See \fBlvmcache\fP(7) for more information.
|
|
.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--compression\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
Controls whether compression is enabled or disable for VDO volume.
|
|
See \fBlvmvdo\fP(7) for more information about VDO usage.
|
|
.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-C\fP|\fB--contiguous\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
Sets or resets the contiguous allocation policy for LVs.
|
|
Default is no contiguous allocation based on a next free principle.
|
|
It is only possible to change a non-contiguous allocation policy
|
|
to contiguous if all of the allocated physical extents in the LV
|
|
are already contiguous.
|
|
.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--deduplication\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
Controls whether deduplication is enabled or disable for VDO volume.
|
|
See \fBlvmvdo\fP(7) for more information about VDO usage.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--deltag\fP \fITag\fP
|
|
.br
|
|
Deletes a tag from a PV, VG or LV. This option can be repeated to delete
|
|
multiple tags at once. See \fBlvm\fP(8) for information about tags.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--detachprofile\fP
|
|
.br
|
|
Detaches a metadata profile from a VG or LV.
|
|
See \fBlvm.conf\fP(5) for more information about profiles.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--devices\fP \fIPV\fP
|
|
.br
|
|
Devices that the command can use. This option can be repeated
|
|
or accepts a comma separated list of devices. This overrides
|
|
the devices file.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--devicesfile\fP \fIString\fP
|
|
.br
|
|
A file listing devices that LVM should use.
|
|
The file must exist in /etc/lvm/devices/ and is managed
|
|
with the lvmdevices(8) command.
|
|
This overrides the lvm.conf devices/devicesfile and
|
|
devices/use_devicesfile settings.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--discards\fP \fBpassdown\fP|\fBnopassdown\fP|\fBignore\fP
|
|
.br
|
|
Specifies how the device-mapper thin pool layer in the kernel should
|
|
handle discards.
|
|
\fBignore\fP causes the thin pool to ignore discards.
|
|
\fBnopassdown\fP causes the thin pool to process discards itself to
|
|
allow reuse of unneeded extents in the thin pool.
|
|
\fBpassdown\fP causes the thin pool to process discards itself
|
|
(like nopassdown) and pass the discards to the underlying device.
|
|
See \fBlvmthin\fP(7) for more information.
|
|
.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--errorwhenfull\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
Specifies thin pool behavior when data space is exhausted.
|
|
When yes, device-mapper will immediately return an error
|
|
when a thin pool is full and an I/O request requires space.
|
|
When no, device-mapper will queue these I/O requests for a
|
|
period of time to allow the thin pool to be extended.
|
|
Errors are returned if no space is available after the timeout.
|
|
(Also see dm-thin-pool kernel module option no_space_timeout.)
|
|
See \fBlvmthin\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-f\fP|\fB--force\fP ...
|
|
.br
|
|
Override various checks, confirmations and protections.
|
|
Use with extreme caution.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-h\fP|\fB--help\fP
|
|
.br
|
|
Display help text.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-K\fP|\fB--ignoreactivationskip\fP
|
|
.br
|
|
Ignore the "activation skip" LV flag during activation
|
|
to allow LVs with the flag set to be activated.
|
|
.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--ignoremonitoring\fP
|
|
.br
|
|
Do not interact with dmeventd unless --monitor is specified.
|
|
Do not use this if dmeventd is already monitoring a device.
|
|
.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
|
|
Sets the major number of an LV block device.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--[raid]maxrecoveryrate\fP \fISize\fP[k|UNIT]
|
|
.br
|
|
Sets the maximum recovery rate for a RAID LV. The rate value
|
|
is an amount of data per second for each device in the array.
|
|
Setting the rate to 0 means it will be unbounded.
|
|
See \fBlvmraid\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--metadataprofile\fP \fIString\fP
|
|
.br
|
|
The metadata profile to use for command configuration.
|
|
See \fBlvm.conf\fP(5) for more information about profiles.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--minor\fP \fINumber\fP
|
|
.br
|
|
Sets the minor number of an LV block device.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--[raid]minrecoveryrate\fP \fISize\fP[k|UNIT]
|
|
.br
|
|
Sets the minimum recovery rate for a RAID LV. The rate value
|
|
is an amount of data per second for each device in the array.
|
|
Setting the rate to 0 means it will be unbounded.
|
|
See \fBlvmraid\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--monitor\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
Start (yes) or stop (no) monitoring an LV with dmeventd.
|
|
dmeventd monitors kernel events for an LV, and performs
|
|
automated maintenance for the LV in reponse to specific events.
|
|
See \fBdmeventd\fP(8) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--nolocking\fP
|
|
.br
|
|
Disable locking.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--noudevsync\fP
|
|
.br
|
|
Disables udev synchronisation. The process will not wait for notification
|
|
from udev. It will continue irrespective of any possible udev processing
|
|
in the background. Only use this if udev is not running or has rules that
|
|
ignore the devices LVM creates.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-P\fP|\fB--partial\fP
|
|
.br
|
|
Commands will do their best to activate LVs with missing PV extents.
|
|
Missing extents may be replaced with error or zero segments
|
|
according to the lvm.conf missing_stripe_filler setting.
|
|
Metadata may not be changed with this option.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-p\fP|\fB--permission\fP \fBrw\fP|\fBr\fP
|
|
.br
|
|
Set access permission to read only \fBr\fP or read and write \fBrw\fP.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-M\fP|\fB--persistent\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
When yes, makes the specified minor number persistent.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--poll\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
When yes, start the background transformation of an LV.
|
|
An incomplete transformation, e.g. pvmove or lvconvert interrupted
|
|
by reboot or crash, can be restarted from the last checkpoint with --poll y.
|
|
When no, background transformation of an LV will not occur, and the
|
|
transformation will not complete. It may not be appropriate to immediately
|
|
poll an LV after activation, in which case --poll n can be used to defer
|
|
polling until a later --poll y command.
|
|
.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-r\fP|\fB--readahead\fP \fBauto\fP|\fBnone\fP|\fINumber\fP
|
|
.br
|
|
Sets read ahead sector count of an LV.
|
|
\fBauto\fP is the default which allows the kernel to choose
|
|
a suitable value automatically.
|
|
\fBnone\fP is equivalent to zero.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--readonly\fP
|
|
.br
|
|
Run the command in a special read-only mode which will read on-disk
|
|
metadata without needing to take any locks. This can be used to peek
|
|
inside metadata used by a virtual machine image while the virtual
|
|
machine is running. No attempt will be made to communicate with the
|
|
device-mapper kernel driver, so this option is unable to report whether
|
|
or not LVs are actually in use.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--rebuild\fP \fIPV\fP
|
|
.br
|
|
Selects a PV to rebuild in a raid LV. Multiple PVs can be rebuilt by
|
|
repeating this option.
|
|
Use this option in place of --resync or --syncaction repair when the
|
|
PVs with corrupted data are known, and their data should be reconstructed
|
|
rather than reconstructing default (rotating) data.
|
|
See \fBlvmraid\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--refresh\fP
|
|
.br
|
|
If the LV is active, reload its metadata.
|
|
This is not necessary in normal operation, but may be useful
|
|
if something has gone wrong, or if some form of manual LV
|
|
sharing is being used.
|
|
.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--resync\fP
|
|
.br
|
|
Initiates mirror synchronization. Synchronization generally happens
|
|
automatically, but this option forces it to run.
|
|
Also see --rebuild to synchronize a specific PV.
|
|
During synchronization, data is read from the primary mirror device
|
|
and copied to the others. This can take considerable time, during
|
|
which the LV is without a complete redundant copy of the data.
|
|
See \fBlvmraid\fP(7) for more information.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-S\fP|\fB--select\fP \fIString\fP
|
|
.br
|
|
Select objects for processing and reporting based on specified criteria.
|
|
The criteria syntax is described by \fB--select help\fP and \fBlvmreport\fP(7).
|
|
For reporting commands, one row is displayed for each object matching the criteria.
|
|
See \fB--options help\fP for selectable object fields.
|
|
Rows can be displayed with an additional "selected" field (-o selected)
|
|
showing 1 if the row matches the selection and 0 otherwise.
|
|
For non-reporting commands which process LVM entities, the selection is
|
|
used to choose items to process.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB-k\fP|\fB--setactivationskip\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
Persistently sets (yes) or clears (no) the "activation skip" flag on an LV.
|
|
An LV with this flag set is not activated unless the
|
|
--ignoreactivationskip option is used by the activation command.
|
|
This flag is set by default on new thin snapshot LVs.
|
|
The flag is not applied to deactivation.
|
|
The current value of the flag is indicated in the lvs lv_attr bits.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--[raid]syncaction\fP \fBcheck\fP|\fBrepair\fP
|
|
.br
|
|
Initiate different types of RAID synchronization.
|
|
This causes the RAID LV to read all data and parity
|
|
blocks in the array and check for discrepancies
|
|
(mismatches between mirrors or incorrect parity values).
|
|
\fBcheck\fP will count but not correct discrepancies.
|
|
\fBrepair\fP will correct discrepancies.
|
|
See lvs for reporting discrepancies found or repaired.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--sysinit\fP
|
|
.br
|
|
Indicates that vgchange/lvchange is being invoked from early system initialisation
|
|
scripts (e.g. rc.sysinit or an initrd), before writable filesystems are
|
|
available. As such, some functionality needs to be disabled and this option
|
|
acts as a shortcut which selects an appropriate set of options. Currently,
|
|
this is equivalent to using --ignorelockingfailure, --ignoremonitoring,
|
|
--poll n, and setting env var LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES.
|
|
vgchange/lvchange skip autoactivation, and defer to pvscan autoactivation.
|
|
.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-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--[raid]writebehind\fP \fINumber\fP
|
|
.br
|
|
The maximum number of outstanding writes that are allowed to
|
|
devices in a RAID1 LV that is marked write-mostly.
|
|
Once this value is exceeded, writes become synchronous (i.e. all writes
|
|
to the constituent devices must complete before the array signals the
|
|
write has completed). Setting the value to zero clears the preference
|
|
and allows the system to choose the value arbitrarily.
|
|
.ad b
|
|
.HP
|
|
.ad l
|
|
\fB--[raid]writemostly\fP \fIPV\fP[\fB:t\fP|\fBn\fP|\fBy\fP]
|
|
.br
|
|
Mark a device in a RAID1 LV as write-mostly. All reads
|
|
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
|
|
set the write-mostly attribute for the specified PV.
|
|
It is also possible to remove the write-mostly flag by adding the
|
|
suffix \fB:n\fP at the end of the PV name, or to toggle the value with
|
|
the suffix \fB:t\fP. Repeat this option to change the attribute on
|
|
multiple PVs.
|
|
.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
|
|
.HP
|
|
.ad l
|
|
\fB-Z\fP|\fB--zero\fP \fBy\fP|\fBn\fP
|
|
.br
|
|
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 y.
|
|
.ad b
|
|
.SH VARIABLES
|
|
.HP
|
|
\fIVG\fP
|
|
.br
|
|
Volume Group name. See \fBlvm\fP(8) for valid names.
|
|
.HP
|
|
\fILV\fP
|
|
.br
|
|
Logical Volume name. See \fBlvm\fP(8) for valid names.
|
|
An LV positional arg generally includes the VG name and LV name, e.g. VG/LV.
|
|
LV followed by _<type> indicates that an LV of the
|
|
given type is required. (raid represents raid<N> type)
|
|
.HP
|
|
\fITag\fP
|
|
.br
|
|
Tag name. See \fBlvm\fP(8) for information about tag names and using tags
|
|
in place of a VG, LV or PV.
|
|
.HP
|
|
\fISelect\fP
|
|
.br
|
|
Select indicates that a required positional parameter can
|
|
be omitted if the \fB--select\fP option is used.
|
|
No arg appears in this position.
|
|
.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 KiB,
|
|
m|M is MiB, g|G is GiB, t|T is TiB, p|P is PiB, e|E is EiB.
|
|
(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 EXAMPLES
|
|
Change LV permission to read-only:
|
|
.sp
|
|
.B lvchange -pr vg00/lvol1
|
|
.SH SEE ALSO
|
|
|
|
.BR lvm (8)
|
|
.BR lvm.conf (5)
|
|
.BR lvmconfig (8)
|
|
.BR lvmdevices (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 vgimportdevices (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)
|