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new 9a7fecf KVM volume migration changes (#424)
9a7fecf is described below
commit 9a7fecf6e532507dad4de5f7a7fb953af2735d6f
Author: Harikrishna <[email protected]>
AuthorDate: Thu Jan 16 15:58:16 2025 +0530
KVM volume migration changes (#424)
---
source/adminguide/storage.rst | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/source/adminguide/storage.rst b/source/adminguide/storage.rst
index 07f8f9b..97b0ccb 100644
--- a/source/adminguide/storage.rst
+++ b/source/adminguide/storage.rst
@@ -772,7 +772,7 @@ There are two situations when you might want to migrate a
disk:
Migrating Storage For a Running Instance
''''''''''''''''''''''''''''''''''''''''
-(Supported on XenServer and VMware)
+(Supported on XenServer, KVM and VMware)
#. Log in to the CloudStack UI as a user or admin.
@@ -814,15 +814,17 @@ Migrating Storage and Attaching to a Different Instance
Volume” <#attaching-a-volume>`_
-Migrating an Instance Root Volume to a New Storage Pool
+Migrating an Instance Volume to a New Storage Pool
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-(XenServer, VMware) You can live migrate an Instance's root disk from one
+(XenServer, VMware) You can live migrate an Instance's volumes from one
storage pool to another, without stopping the Instance first.
-(KVM) When migrating the root disk volume, the Instance must first be stopped,
-and users can not access the Instance. After migration is complete, the
Instance can
-be restarted.
+(KVM) KVM does not support volume live migration due to the limited possibility
+to refresh VM XML domain. Therefore, to live migrate a volume between storage
pools,
+one must migrate the VM to a different host as well to force the VM XML domain
update.
+Use 'migrateVirtualMachineWithVolumes' instead or stop the Instance and then
migrate
+the volume.
#. Log in to the CloudStack UI as a user or admin.
