pvresize man

man/pvresize.8

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+.TH PVRESIZE 8 "LVM TOOLS" "Sistina Software UK" \" -*- nroff -*-
+.SH NAME
+pvresize \- resize a disk or partition in use by LVM2
+.SH SYNOPSIS
+.B pvresize
+.RB [ \-d | \-\-debug ]
+.RB [ \-h | \-\-help ]
+.RB [ \-t | \-\-test ]
+.RB [ \-v | \-\-verbose ]
+.RB [ \-\-setphysicalvolumesize size ]
+.IR PhysicalVolume " [" PhysicalVolume ...]
+.SH DESCRIPTION
+.B pvresize
+resizes
+.I PhysicalVolume
+which may already be in a volume group and have active logical volumes
+allocated on it.
+.SH OPTIONS
+See \fBlvm\fP(8) for common options.
+.TP
+.BR \-\-setphysicalvolumesize " size"
+Overrides the automatically-detected size of the PV.  Use with care, or
+prior to reducing the physical size of the device.
+.SH EXAMPLES
+Expand the PV on /dev/sda1 after enlarging the partition with fdisk:
+.sp
+.B pvresize /dev/sda1
+.sp
+Shrink the PV on /dev/sda1 prior to shrinking the partition with fdisk
+(ensure that the PV size is appropriate for your intended new partition
+size):
+.sp
+.B pvresize --setphysicalvolumesize 40G /dev/sda1
+.sp
+.SH RESTRICTIONS
+.B pvresize
+will refuse to shrink
+.I PhysicalVolume
+if it has allocated extents after where its new end would be. In the future,
+it should relocate these elsewhere in the volume group if there is sufficient
+free space, like
+.B pvmove
+does.
+.sp
+.B pvresize
+won't currently work correctly on LVM1 volumes or PVs with extra
+metadata areas.
+.SH SEE ALSO
+.BR lvm "(8), " pvmove "(8), " lvresize "(8), " fdisk "(8)"