[lvm-devel] [PATCH] Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
Dave Wysochanski
dwysocha at redhat.com
Mon Oct 26 02:48:22 UTC 2009
Addresses rhbz 500177.
Signed-off-by: Dave Wysochanski <dwysocha at redhat.com>
---
man/lvconvert.8.in | 14 ++++++++++++++
man/lvcreate.8.in | 4 +++-
2 files changed, 17 insertions(+), 1 deletions(-)
diff --git a/man/lvconvert.8.in b/man/lvconvert.8.in
index b8fe27d..1c736c9 100644
--- a/man/lvconvert.8.in
+++ b/man/lvconvert.8.in
@@ -35,6 +35,14 @@ LogicalVolume[Path] [PhysicalVolume[Path]...]
lvconvert will change a linear logical volume to a mirror
logical volume or to a snapshot of linear volume and vice versa.
It is also used to add and remove disk logs from mirror devices.
+.br
+If the conversion requires allocation of physical extents (for
+example, when converting from linear to mirror) and you specify
+one or more PhysicalVolumes, allocation of physical extents will
+be restricted to these volumes. If the conversion frees physical
+extents (for example, when converting from a mirror to a linear, or
+reducing mirror legs) and you specify one or more PhysicalVolumes,
+the freed extents come first from the specified PhysicalVolumes.
.SH OPTIONS
See \fBlvm\fP for common options.
.br
@@ -131,6 +139,12 @@ converts logical volume "vg00/lvol2" to snapshot of original volume "vg00/lvol1"
converts linear logical volume "vg00/lvol1" to a two-way mirror, using physical
extents /dev/sda:0-15 and /dev/sdb:0-15 for allocation of new extents.
+.br
+"lvconvert -m0 vg00/lvmirror1 /dev/sda
+.br
+converts mirror logical volume "vg00/lvmirror1" to linear, freeing physical
+extents from /dev/sda.
+
.SH SEE ALSO
.BR lvm (8),
.BR vgcreate (8),
diff --git a/man/lvcreate.8.in b/man/lvcreate.8.in
index ded98f9..5041eab 100644
--- a/man/lvcreate.8.in
+++ b/man/lvcreate.8.in
@@ -41,7 +41,9 @@ the volume group can be extended ( see
) with other physical volumes or by reducing existing logical volumes
of this volume group in size ( see
.B lvreduce(8)
-).
+). If you specify one or more PhysicalVolumes, allocation of physical
+extents will be restricted to these volumes.
+.br
.br
The second form supports the creation of snapshot logical volumes which
keep the contents of the original logical volume for backup purposes.
--
1.6.0.6
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