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feat(docs): add VM migration spec (#7378)

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See #7360
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Mathieu 2024-02-23 11:08:44 +01:00 committed by GitHub
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docs/manage_infrastructure.md
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@ -425,6 +425,32 @@ It works even if the VM is running, because we'll automatically export a snapsho
In the VM "Snapshots" tab, you can also export a snapshot like you export a VM. In the VM "Snapshots" tab, you can also export a snapshot like you export a VM.
## VM migration
### Simple VM Migration (VM.pool_migrate)
In simple migration, the VM's active state is transferred from host A to host B while its disks remains in its original location. This feature is only possible when the VM's disks are on a shared SR by both hosts and if the VM is running.
#### Use Case
- Migrate a VM within the same pool from host A to host B without moving the VM's VDIs.
### VM Migration with Storage Motion (VM.migrate_send)
VM migration with storage motion allows you to migrate a VM from one host to another when the VM's disks are not on a shared SR between the two hosts or if a specific network is chosen for the migration. VDIs will be migrated to the destination SR if one is provided.
#### Use Cases
- Migrate a VM to another pool.
- Migrate a VM within the same pool from host A to host B by selecting a network for the migration.
- Migrate a VM within the same pool from host A to host B by moving the VM's VDIs to another storage.
### Expected Behavior
- Migrating a VM that has VDIs on a shared SR from host A to host B must trigger a "Simple VM Migration".
- Migrating a VM that has VDIs on a shared SR from host A to host B using a particular network must trigger a "VM Migration with Storage Motion" without moving its VDIs.
- Migrating a VM from host A to host B with a destination SR must trigger a "VM Migration with Storage Motion" and move VDIs to the destination SR, regardless of where the VDIs were stored.
## Hosts management ## Hosts management
Outside updates (see next section), you can also do host management via Xen Orchestra. Basic operations are supported, like reboot, shutdown and so on. Outside updates (see next section), you can also do host management via Xen Orchestra. Basic operations are supported, like reboot, shutdown and so on.