ovirt rhev virtual machine creation, migration, storage, networking

There are two methods for migrating the storage location of ovirt virtual machines:

1. Migrating by importing and exporting domains, but it needs to be shut down and imported and exported, which is troublesome


. It will not be interrupted


1. It is found that the storage space cannot be migrated during online migration.

2. Offline migration can be started from the specified host by editing the virtual machine,

but there are also some problems. When moving the virtual machine disk,

when moving from iscsi to nfs, The following error will be reported:

command failed: Could not acquire resource. Probably resource factory threw an exception.: ()

VDSM command failed: Image does not exist in domain: u'image=ebfddd46-61bf-49fe-b145-8b776893672b, domain= 9923c57c-35e0-4ea4-995f-7e8a159f06da'The

reason has not been found yet2015/12/10

I saw such a paragraph in the official document today, I don't know if it is because of this

If the virtual disk is attached to a virtual machine that was created based on a template and used the thin provisioning storage allocation option, the disks for the template on which the virtual machine was based must be copied to the same storage domain as the virtual disk .The migration


from nfs to iscsi can be successfully


completed .


The migration from nfs to nfs has not been tested, and it will be updated after testing. A compromise, remember to insert the network card after importing.