.SH NOTES

This previous command syntax would perform two different operations:
.br
\fBlvconvert --thinpool\fP \fILV1\fP \fB--poolmetadata\fP \fILV2\fP
.br
If LV1 was not a thin pool, the command would convert LV1 to
a thin pool, optionally using a specified LV for metadata.
But, if LV1 was already a thin pool, the command would swap
the current metadata LV with LV2 (for repair purposes.)

In the same way, this previous command syntax would perform two different
operations:
.br
\fBlvconvert --cachepool\fP \fILV1\fP \fB--poolmetadata\fP \fILV2\fP
.br
If LV1 was not a cache pool, the command would convert LV1 to
a cache pool, optionally using a specified LV for metadata.
But, if LV1 was already a cache pool, the command would swap
the current metadata LV with LV2 (for repair purposes.)

.SH EXAMPLES

Convert a linear LV to a two-way mirror LV.
.br
.B lvconvert \-\-type mirror \-\-mirrors 1 vg/lvol1

Convert a linear LV to a two-way RAID1 LV.
.br
.B lvconvert \-\-type raid1 \-\-mirrors 1 vg/lvol1

Convert a mirror LV to use an in\-memory log.
.br
.B lvconvert \-\-mirrorlog core vg/lvol1

Convert a mirror LV to use a disk log.
.br
.B lvconvert \-\-mirrorlog disk vg/lvol1

Convert a mirror or raid1 LV to a linear LV.
.br
.B lvconvert --type linear vg/lvol1

Convert a mirror LV to a raid1 LV with the same number of images.
.br
.B lvconvert \-\-type raid1 vg/lvol1

Convert a linear LV to a two-way mirror LV, allocating new extents from specific
PV ranges.
.br
.B lvconvert \-\-mirrors 1 vg/lvol1 /dev/sda:0\-15 /dev/sdb:0\-15

Convert a mirror LV to a linear LV, freeing physical extents from a specific PV.
.br
.B lvconvert \-\-type linear vg/lvol1 /dev/sda

Split one image from a mirror or raid1 LV, making it a new LV.
.br
.B lvconvert \-\-splitmirrors 1 \-\-name lv_split vg/lvol1

Split one image from a raid1 LV, and track changes made to the raid1 LV
while the split image remains detached.
.br
.B lvconvert \-\-splitmirrors 1 \-\-trackchanges vg/lvol1

Merge an image (that was previously created with \-\-splitmirrors and
\-\-trackchanges) back into the original raid1 LV.
.br
.B lvconvert \-\-mergemirrors vg/lvol1_rimage_1

Replace PV /dev/sdb1 with PV /dev/sdf1 in a raid1/4/5/6/10 LV.
.br
.B lvconvert \-\-replace /dev/sdb1 vg/lvol1 /dev/sdf1

Replace 3 PVs /dev/sd[b-d]1 with PVs /dev/sd[f-h]1 in a raid1 LV.
.br
.B lvconvert \-\-replace /dev/sdb1 \-\-replace /dev/sdc1 \-\-replace /dev/sdd1
.RS
.B vg/lvol1 /dev/sd[fgh]1
.RE

Replace the maximum of 2 PVs /dev/sd[bc]1 with PVs /dev/sd[gh]1 in a raid6 LV.
.br
.B lvconvert \-\-replace /dev/sdb1 \-\-replace /dev/sdc1 vg/lvol1 /dev/sd[gh]1

Convert an LV into a thin LV in the specified thin pool.  The existing LV
is used as an external read\-only origin for the new thin LV.
.br
.B lvconvert \-\-type thin \-\-thinpool vg/tpool1 vg/lvol1

Convert an LV into a thin LV in the specified thin pool.  The existing LV
is used as an external read\-only origin for the new thin LV, and is
renamed "external".
.br
.B lvconvert \-\-type thin \-\-thinpool vg/tpool1
.RS
.B \-\-originname external vg/lvol1
.RE

Convert an LV to a cache pool LV using another specified LV for cache pool
metadata.
.br
.B lvconvert \-\-type cache-pool \-\-poolmetadata vg/poolmeta1 vg/lvol1

Convert an LV to a cache LV using the specified cache pool and chunk size.
.br
.B lvconvert \-\-type cache \-\-cachepool vg/cpool1 \-c 128 vg/lvol1

Detach and keep the cache pool from a cache LV.
.br
.B lvconvert \-\-splitcache vg/lvol1

Detach and remove the cache pool from a cache LV.
.br
.B lvconvert \-\-uncache vg/lvol1