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+.TH VGCREATE 8 "LVM TOOLS #VERSION#" "Sistina Software UK" \" -*- nroff -*-
+.SH NAME
+vgcreate \- create a volume group
+.SH SYNOPSIS
+.B vgcreate
+.RB [ \-\-addtag
+.IR Tag ]
+.RB [ \-\-alloc 
+.IR AllocationPolicy ]
+.RB [ \-A | \-\-autobackup " {" y | n }]
+.RB [ \-c | \-\-clustered " {" y | n }]
+.RB [ \-d | \-\-debug ]
+.RB [ \-h | \-\-help ]
+.RB [ \-l | \-\-maxlogicalvolumes
+.IR MaxLogicalVolumes ]
+.RB [ -M | \-\-metadatatype type]
+.RB [ -p | \-\-maxphysicalvolumes
+.IR MaxPhysicalVolumes ]
+.RB [ \-\-[vg]metadatacopies ]
+.IR NumberOfCopies|unmanaged|all ]
+.RB [ \-s | \-\-physicalextentsize
+.IR PhysicalExtentSize [ \fBbBsSkKmMgGtTpPeE\fR ]]
+.RB [ \-t | \-\-test ]
+.RB [ \-v | \-\-verbose ]
+.RB [ \-\-version ]
+[ \fIPHYSICAL DEVICE OPTIONS\fP ]
+.I VolumeGroupName PhysicalDevicePath
+.RI [ PhysicalDevicePath ...]
+.SH DESCRIPTION
+.B vgcreate
+creates a new volume group called
+.I VolumeGroupName
+using the block special device \fIPhysicalDevicePath\fP.
+.sp
+If \fIPhysicalDevicePath\fP was not previously configured for LVM with
+\fBpvcreate (8)\fP, the device will be initialized with the same
+default values used with \fBpvcreate\fP.  If non-default
+\fPpvcreate\fP values are desired, they may be given on the
+commandline with the same options as \fPpvcreate\fP.  See
+\fBPHYSICAL DEVICE OPTIONS\fP for available options.  Note
+that the restore-related options such as --restorefile, --uuid,
+and --physicalvolumesize are not available.  If a restore operation
+is needed, use \fBpvcreate (8)\fP and \fBvgcfgrestore (8)\fP.
+.SH OPTIONS
+See \fBlvm\fP for common options.
+.TP
+.BR \-c ", " \-\-clustered " " { y | n }
+If clustered locking is enabled, this defaults to \fBy\fP indicating that 
+this Volume Group is shared with other nodes in the cluster.
+
+If the new Volume Group contains only local disks that are not visible 
+on the other nodes, you must specify \fB\-\-clustered\ n\fP.
+If the cluster infrastructure is unavailable on a particular node at a
+particular time, you may still be able to use such Volume Groups.
+.TP
+.BR \-l ", " \-\-maxlogicalvolumes " " \fIMaxLogicalVolumes\fR
+Sets the maximum number of logical volumes allowed in this
+volume group. 
+The setting can be changed with \fBvgchange\fP.
+For volume groups with metadata in lvm1 format, the limit
+and default value is 255.  
+If the metadata uses lvm2 format, the default value is 0
+which removes this restriction: there is then no limit.
+.TP
+.BR \-p ", " \-\-maxphysicalvolumes " " \fIMaxPhysicalVolumes\fR
+Sets the maximum number of physical volumes that can belong
+to this volume group.
+The setting can be changed with \fBvgchange\fP.
+For volume groups with metadata in lvm1 format, the limit
+and default value is 255.  
+If the metadata uses lvm2 format, the value 0 removes this restriction:
+there is then no limit.  If you have a large number of physical volumes in
+a volume group with metadata in lvm2 format, for tool performance reasons,
+you should consider some use of \fB--pvmetadatacopies 0\fP as described in
+\fBpvcreate(8)\fP, and/or use \fB--vgmetadatacopies\fP.
+.TP
+.BR \-\-vgmetadatacopies " " \fINumberOfCopies|unmanaged|all\fP
+Sets the desired number of metadata copies in the volume group.  If set to
+a non-zero value, LVM will automatically manage the 'metadataignore'
+flags on the physical volumes (see \fBpvcreate\fP or \fBpvchange\fP --metadataignore\fP) in order
+to achieve \fINumberOfCopies\fP copies of metadata.  If set to \fIunmanaged\fP,
+LVM will not automatically manage the 'metadataignore' flags.  If set to
+\fIall\fP, LVM will first clear all of the 'metadataignore' flags on all
+metadata areas in the volume group, then set the value to \fIunmanaged\fP.
+The \fBvgmetadatacopies\fP option is useful for volume groups containing
+large numbers of physical volumes with metadata as it may be used to
+minimize metadata read and write overhead.
+The default value is \fIunmanaged\fP.
+.TP
+.BR \-s ", " \-\-physicalextentsize " " \fIPhysicalExtentSize\fR[\fBbBsSkKmMgGtTpPeE\fR]
+Sets the physical extent size on physical volumes of this volume group.
+A size suffix (k for kilobytes up to t for terabytes) is optional, megabytes
+is the default if no suffix is present.  
+The default is 4 MB and it must be at least 1 KB and a power of 2.
+
+Once this value has been set, it is difficult to change it without recreating
+the volume group which would involve backing up and restoring data on any 
+logical volumes.  However, if no extents need moving for the new
+value to apply, it can be altered using vgchange \-s.
+
+If the volume group metadata uses lvm1 format, extents can vary in size from
+8KB to 16GB and there is a limit of 65534 extents in each logical volume.  The
+default of 4 MB leads to a maximum logical volume size of around 256GB.  
+
+If the volume group metadata uses lvm2 format those restrictions do not apply,
+but having a large number of extents will slow down the tools but have no
+impact on I/O performance to the logical volume.  The smallest PE is 1KB.
+
+The 2.4 kernel has a limitation of 2TB per block device.
+.SH PHYSICAL DEVICE OPTIONS
+The following options are available for initializing physical devices in the
+volume group.  These options are further described in the pvcreate man page.
+.TP
+.BR \-f ", " \-\-force
+.TP
+.BR \-y ", " \-\-yes
+.TP
+.BR \-Z ", " \-\-zero " y|n"
+.TP
+.BR \-\-labelsector " sector"
+.TP
+.BR \-\-metadatasize " size"
+.TP
+.BR \-\-pvmetadatacopies " copies"
+.TP
+.BR \-\-dataalignment " alignment"
+.TP
+.BR \-\-dataalignmentoffset " alignment_offset"
+.SH EXAMPLES
+To create a volume group named
+.B test_vg 
+using physical volumes
+.BR /dev/sdk1 ", and " /dev/sdl1
+with default physical extent size of 4MB:
+.nf
+
+\	vgcreate test_vg /dev/sdk1 /dev/sdl1
+
+.fi
+.SH SEE ALSO
+.BR lvm (8),
+.BR pvdisplay (8),
+.BR pvcreate (8),
+.BR vgdisplay (8),
+.BR vgextend (8),
+.BR vgreduce (8),
+.BR lvcreate (8),
+.BR lvdisplay (8),
+.BR lvextend (8),
+.BR lvreduce (8)