[Users] Snapshot merging and the effect on underlying LV metadata
On Fri, 28 Feb 2014, Alasdair G Kergon wrote:
In lvm2 version 2.02.105 lvconvert gained a --splitsnapshot option
to
allow people to wipe snapshot content before releasing the extents
for reallocation.
--splitsnapshot
Separates SnapshotLogicalVolume from its origin. The volume
that is split off contains the chunks that differ from the ori-
gin along with the metadata describing them. This volume can be
wiped and then destroyed with lvremove. The inverse of --snap-
shot.
Nice to know ... we use the snapshot feature heavilyin our
virtualization, but as:
CentOS 6 is at lvm2-2.02.100-8.el6.x86_64, and
C 5 at lvm2-2.02.88-12.el5,
we will need to wait a bit before relying on its presence.
Any chance of a re-basing / refresh / backport at least into
RHEL 6 (we have only one Xen oriented dom0 at this point on
C5)?
Thanks
--Russ herrold