Allow migrating PMEM's data
As a user, i want to copy the data of pmem devices for instance when cold migrating or resizing the instance.
Currently, cold migrate or resize instance could make the PMEM Namespaces different on host, which is a PMEM Device for the instance. But the instance's data in the PMEM Device will lose. So i want to copy the data of pmem devices for instance when cold migrating or resizing the instance.
As following:
1.The instance use /dev/dax0.0 PMEM Namespace on host.
2.After cold migrate or resize instance, the PMEM Namespace is /dev/dax0.1 on host or other host.
3.Copy the data from /dev/dax0.0 to /dev/dax0.1 .
Blueprint information
- Status:
- Started
- Approver:
- Balazs Gibizer
- Priority:
- Undefined
- Drafter:
- Qiu Fossen
- Direction:
- Approved
- Assignee:
- Qiu Fossen
- Definition:
- Pending Approval
- Series goal:
- None
- Implementation:
-
Started
- Milestone target:
- None
- Started by
- Balazs Gibizer
- Completed by
Related branches
Related bugs
Sprints
Whiteboard
SPEC https:/
[20210526 gibi]: spec has been merged so bp is approved for Xena.
impl https:/
[2021-09-07 gibi]: We hit feature freeze so it is now deferred from Xena.
