andrijapanicsb commented on code in PR #356:
URL:
https://github.com/apache/cloudstack-documentation/pull/356#discussion_r1453770143
##########
source/adminguide/virtual_machines/importing_unmanaging_vms.rst:
##########
@@ -401,6 +411,166 @@ Unmanaging Instance actions
- For the Instance being unmanaged: stopped and destroyed usage events
(similar to the generated usage events when expunging an Instance), with types:
‘VM.STOP’ and ‘VM.DESTROY', unless the instance has been already stopped before
being unmanaged and in this case only ‘VM.DESTROY' is generated.
+Import Instances from External Hosts
+-------------------------
+.. note:: This is currently only available for **KVM** hypervisor.
+
+External Host
+~~~~~~~~~~~~~
+
+An External Host refers to a host that is not managed by CloudStack. The
"Import from external host" feature enables importing/migrating
+instances from these external hosts. This feature is available in both UI and
API.
+
+Prerequisites
+~~~~~~~~~~~~~
+- Ensure that the External KVM host is equipped with the installation of
libvirt.
+- Allow TCP libvirt connections (listen_tpc=1) on those External Hosts from
CloudStack hosts.
+- It is imperative that instances residing on the external host are in a
stopped state, as live migration of instances is not supported
+- For some guest operating systems, it's also required that the operating
system inside the Instance has been gracefully shut down.
+- Currently, it's supported to only use NFS and Local storage as the
destination Primary Storage pools in CloudStack
Review Comment:
```suggestion
- Ensure that the External KVM host are running libvirt
- Allow libvirt TCP connections (listen_tcp=1) on those External Hosts from
CloudStack hosts.
- Instances on the external host have to be in a stopped state, as live
migration of instances is not supported
- For some guest operating systems, it's also required that the operating
system inside the Instance has been gracefully shut down.
- Currently, it's supported to only use NFS and Local storage as the
destination Primary Storage pools in CloudStack
- Currently, only libvirt-based instances can be migrated
```
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