Clustered LVM support as Libvirt image backend
Nova libvirt driver supports LVM as its image backend and it can also be used for Clustered LVM (CLVM). CLVM is an extended version of Linux LVM2 on top of SAN storages to support concurrent access from servers. To do so, it is based on clustering software like Pacemaker/Corosync, DLM (Linux distributed lock manager) and clvmd to share LVM metadata among servers safely. It's useful to support VM live-migration between compute hosts sharing a CLVM pool.
However, Nova doesn't support VM live-migration on CLVM because the LVM image backend driver isn't marked as for shared block storages.
The goal of this blueprint is to support live-migration on CLVM.
Blueprint information
- Status:
- Not started
- Approver:
- None
- Priority:
- Undefined
- Drafter:
- Akira Yoshiyama
- Direction:
- Needs approval
- Assignee:
- None
- Definition:
- New
- Series goal:
- None
- Implementation:
-
Unknown
- Milestone target:
- None
- Started by
- Completed by
Whiteboard
Gerrit topic: https:/
Addressed by: https:/
Add cluster LVM support to Libvirt LVM image backend
