[openstack-dev] [Nova] Should Nova delete the implicit volume and volume snapshot it creates?
Ganesan, Nithya
nithya.ganesan at hp.com
Tue Mar 3 14:00:17 UTC 2015
Hi,
I have a question regarding the implicit volume resources that created by Nova during persistent
VM's snapshot creation. Here is a sample scenario that leaves a set of volume resources as residue,
1. Create a bootable volume, bv_1
2. Create an instance vm_1, from the bootable volume bv_1
3. Create an image snapshot of vm_1, vm_1_img. This implicitly creates a volume snapshot of
bv_1, bv_1_vsnap.
4. Create an instance vm_2 from vm_1_img. This implicitly creates a bootable volume from volume
snapshot, bv_1_vsnap, boot_vol2
5. Delete vm_1, vm_2, vm_1_img. Now try to delete bv_1. This would fail as there is a dependent
volume snapshot.
Shouldn't Nova should do cleanup of these resources that are created implicitly?
Regards
Nithya
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