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09b7ceea95
Allow restoring metadata with thin pool volumes. No validation is done for this case within vgcfgrestore tool - thus incorrect metadata may lead to destruction of pool content.
57 lines
2.1 KiB
Groff
57 lines
2.1 KiB
Groff
.TH VGCFGRESTORE 8 "LVM TOOLS #VERSION#" "Sistina Software UK" \" -*- nroff -*-
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.SH NAME
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vgcfgrestore \- restore volume group descriptor area
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.SH SYNOPSIS
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.B vgcfgrestore
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.RB [ \-d | \-\-debug ]
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.RB [ \-f | \-\-file
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.RI < filename >]
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.RB [ \-\-force ]
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.RB [ \-l [ l ]| \-\-list ]
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.RB [ \-h | \-\-help ]
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.RB [ \-M | \-\-metadatatype
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.IR 1 | 2 ]
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.RB [ \-t | \-\-test ]
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.RB [ \-v | \-\-verbose ]
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.RI \fIVolumeGroupName\fP
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.SH DESCRIPTION
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vgcfgrestore allows you to restore the metadata of \fIVolumeGroupName\fP
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from a text backup file produced by \fBvgcfgbackup\fP.
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You can specify a backup file with \fB\-\-file\fP.
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If no backup file is specified, the most recent
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one is used. Use \fB\-\-list\fP for a list of the available
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backup and archive files of \fIVolumeGroupName\fP.
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.SH OPTIONS
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See \fBlvm\fP(8) for common options.
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.TP
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.BR \-l ", " \-\-list\fP
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List files pertaining to \fIVolumeGroupName\fP
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List metadata backup and archive files pertaining to \fIVolumeGroupName\fP.
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May be used with the \fB\-f\fP option. Does not restore \fIVolumeGroupName\fP.
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.TP
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.BR \-f ", " \-\-file " " \fIfilename
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Name of LVM metadata backup file
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Specifies a metadata backup or archive file to be used for restoring
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VolumeGroupName. Often this file has been created with \fBvgcfgbackup\fP.
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.TP
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.B \-\-force
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To restore metadata with thin pool volumes, user currently
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needs to use this flag. The tool DOES NOT make any validation.
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.br
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WARNING: Restoring lvm2 metadata that are not matching thin pool
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kernel metadata may lead to the destruction of the pool content.
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Use with extreme caution.
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.SH REPLACING PHYSICAL VOLUMES
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\fBvgdisplay \-\-partial \-\-verbose\fP will show you the UUIDs and sizes of
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any PVs that are no longer present.
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If a PV in the VG is lost and you wish to substitute
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another of the same size, use
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\fBpvcreate \-\-restorefile filename \-\-uuid uuid\fP (plus additional
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arguments as appropriate) to initialise it with the same UUID as
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the missing PV. Repeat for all other missing PVs in the VG.
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Then use \fBvgcfgrestore \-\-file filename\fP to restore the volume
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group's metadata.
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.SH SEE ALSO
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.BR lvm (8),
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.BR vgcreate (8)
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