A.When provisioning a virtual machine, the system only needs to quickly create a lightweight subvolume and add the existing parent volume to form a virtual machine

B.During the use of the virtual machine, all modifications to the system volume are written to the subvolume

C.The system volume presented by the virtual machine to the outside worldIDof the parent volume used for itID

D.When provisioning virtual machines, there is no need to create a new system volume in the storage and copy the full image content to it

A.mistake

B.correct

A.After the co-generation is completed, business verification needs to be performed, and business switching can be performed after the business verification is successful.

B.The migration process generates full data

C.Migrate the source data to the destination VM

D.The source side executes the snapshot before the migration

A.Virtual machines can be migrated across clusters

B.A cluster is composed of multiple hosts and their associated storage networks

C.Whether a host succumbs to a unified cluster depends on whether the same shared storage is used

D.Hosts can be moved between different clusters

A.buttFusionStorageThe smallest granularity is the storage pool, each volume corresponds to a cloud disk

B.buttOceanStor V3The smallest granularity of storage is the storage pool

C.cinder-volumerole andIP SANcontroller viaiSCSIprotocol to interact

D.cinder-volumeRoles are deployed on compute nodes