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0a13815e68
Introduce FMT_OBSOLETE to identify pool metadata and use it and FMT_MDAS instead of hard-coded format names. Explain device accesses on pvscan --cache man page.
77 lines
2.6 KiB
Groff
77 lines
2.6 KiB
Groff
.TH PVSCAN 8 "LVM TOOLS #VERSION#" "Sistina Software UK" \" -*- nroff -*-
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.SH NAME
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pvscan \- scan all disks for physical volumes
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.SH SYNOPSIS
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.B pvscan
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.RB [ \-d | \-\-debug ]
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.RB [ \-h | \-\-help ]
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.RB [ \-v | \-\-verbose ]
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.RB [ \-\-version ]
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.RB [ \-\-ignorelockingfailure ]
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.RB [ \-e | \-\-exported ]
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.RB [ \-n | \-\-novolumegroup ]
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.RB [ \-s | \-\-short ]
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.RB [ \-u | \-\-uuid ]
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.BR
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.B pvscan
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.RB [ \-d | \-\-debug ]
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.RB [ \-h | \-\-help ]
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.B \-\-cache
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.RB [ \-a | \-\-activate " " \fIay ]
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.RB [ \-b | \-\-background ]
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.RB [ \-\-major
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.I major
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.B \-\-minor
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.I minor
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.IR DevicePath
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.IR major:minor ]...
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.SH DESCRIPTION
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pvscan scans all supported LVM block devices in the system for
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physical volumes.
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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 \-e ", " \-\-exported
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Only show physical volumes belonging to exported volume groups.
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.TP
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.BR \-n ", " \-\-novolumegroup
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Only show physical volumes not belonging to any volume group.
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.TP
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.BR \-s ", " \-\-short
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Short listing format.
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.TP
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.BR \-u ", " \-\-uuid
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Show UUIDs (Uniform Unique Identifiers) in addition to device special names.
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.TP
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.BR \-a ", " \-\-activate " " \fIay
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Together with the information already cached in lvmetad, automatically activate
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any logical volumes that become activatable after the scan done on one or more devices.
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The logical volume to autoactivate is matched against the
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activation/auto_activation_volume_list set in lvm.conf. If this list is not set, then
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all volumes are considered for autoactivation. The autoactivation is not yet
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supported for logical volumes that are part of partial or clustered volume groups.
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.TP
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.BR \-b ", " \-\-background
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Run the command in the background.
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.TP
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.BR \-\-cache " [" \-\-major " " \fImajor " " \-\-minor " " \fIminor " | " \fIDevicePath " | " \fImajor:minor " ]..."
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Scan one or more devices and instruct the lvmetad daemon to update its cached
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state accordingly. Called internally by udev rules.
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All devices listed explicitly are processed \fBregardless\fP of any device
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filters set using \fBdevices/filter\fP configuration setting. To filter
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devices even in this case, the \fBdevices/global_filter\fP must be used.
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If lvmetad has not yet cached any metadata or the filters have recently been
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changed, then all devices may be scanned, effectively ignoring the rest of
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the command line. Otherwise, if all the devices referenced on the command line
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contain metadata in the default lvm2 format, other devices are not accessed.
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If metadata written using the obsolete GFS pool format is encountered, this is
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ignored and so lvmetad should not be used.
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.SH SEE ALSO
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.BR lvm (8),
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.BR lvmetad (8),
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.BR pvcreate (8),
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.BR pvdisplay (8)
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