Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=e1e986f16d27e468a... Commit: e1e986f16d27e468a70dcbc2d2c2a249111d7725 Parent: 97d36d5750924029c247265c8d700f993405668f Author: Zdenek Kabelac zkabelac@redhat.com AuthorDate: Mon Jul 15 11:52:05 2013 +0200 Committer: Zdenek Kabelac zkabelac@redhat.com CommitterDate: Mon Jul 15 15:54:33 2013 +0200
thin: lvcreate man examples
Add more examples to man page about thin volume snapshot creation and try to make the text more explicit about size specification. --- man/lvcreate.8.in | 22 +++++++++++++++------- 1 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/man/lvcreate.8.in b/man/lvcreate.8.in index fd36e90..64319c1 100644 --- a/man/lvcreate.8.in +++ b/man/lvcreate.8.in @@ -312,11 +312,11 @@ Snapshots provide a 'frozen image' of the contents of the origin while the origin can still be updated. They enable consistent backups and online recovery of removed/overwritten data/files. Thin snapshot is created when the origin is a thin volume and -the size is not specified. Thin snapshot shares same blocks within +the size IS NOT specified. Thin snapshot shares same blocks within the thin pool volume. -The snapshot with the specified size does not need the same amount of -storage the origin has. In a typical scenario, 15-20% might be enough. -In case the snapshot runs out of storage, use +The non thin volume snapshot with the specified size does not need +the same amount of storage the origin has. In a typical scenario, +15-20% might be enough. In case the snapshot runs out of storage, use .BR lvextend (8) to grow it. Shrinking a snapshot is supported by .BR lvreduce (8) @@ -453,10 +453,18 @@ build with 2 stripes 64KiB and chunk size 256KiB together with .sp .B lvcreate -i 2 -I 64 -c 256 -L100M -T vg00/pool -V 1T --name thin_lv
-Creates thin volume snapshot of read only inactive volume "vg00/origin" -that will use an existing thin pool "vg00/pool": +Creates a thin snapshot volume "thinsnap" of thin volume "thinvol" that +will share the same blocks within the thin pool. +Note: the size MUST NOT be specified, otherwise the non-thin snapshot +is created instead: .sp -.B lvcreate -s --thinpool "vg00/pool" origin +.B lvcreate -s vg00/thinvol --name thinsnap + +Creates a thin snapshot volume of read-only inactive volume "origin" +which then becomes the thin external origin for the thin snapshot volume +in vg00 that will use an existing thin pool "vg00/pool": +.sp +.B lvcreate -s --thinpool vg00/pool origin
.SH SEE ALSO .BR lvm (8),