Red Hat Bugzilla – Bug 860476
RFE: support lvcreate thin provisioning
Last modified: 2016-04-13 17:19:01 EDT
Description of problem:
virt-manager, after adding an LVM-based storage pool, doesn't actually create thin Logical Volumes... even when specifying it to do so. See attached picture.
What's more, if a thinpool VL exists, virt-manager refused to even allow the creation of an LVM storage pool using that Volume Group:
# lvcreate VolGrpSlow0 --thinpool lv_thinpool --size 100G
Version-Release number of selected component (if applicable):
Created attachment 617295 [details]
creating a new storage volume with virt-manager
Max Capacity at 9000 megs, but currently allocation at 0... yet the LV create is just plain old 9000 megs... not thin provisioned
To clarify, I'm using an already existing Volume Group, with other LVs on it.
This works fine expect for the thin provisioning.
We are requesting it, libvirt just needs to support it. But I guess this is a fairly new feature so we would need to be careful to maintain back compat:
Any progress on this as virt-manager can't even see existing thin LVs.
- Create Thin Pool
- Create Thin LV
- Create a new VM via virt-manager and manually select the Thin VG as the Disk
- virt-manager deletes the Thin LV and creates a new FAT LV with the same name.
(In reply to Steven Ellis from comment #4)
> Any progress on this as virt-manager can't even see existing thin LVs.
> For example
> - Create Thin Pool
> - Create Thin LV
> - Create a new VM via virt-manager and manually select the Thin VG as the
> - virt-manager deletes the Thin LV and creates a new FAT LV with the same
steven, if you are still hitting unexpected virt-manager behavior, please file a bug against virt-manager and list your virt-manager + libvirt versions
As for this bug, just duping to the feature request being tracked under product=RHEL7 since that's where all the interesting info is
*** This bug has been marked as a duplicate of bug 1060287 ***