Ops Center Administrator gives you an end-to-end workflow for migrating volumes from one pool to a different pool within one storage system (internal migration) and an end-to-end workflow for migrating volumes from one storage system to another (external migration).
Volume migration involves moving data from a set of source volumes to a set of destination volumes. For example, you can migrate data when your volume performance decreases or your environment changes. When relocating data based on the results of performance monitoring for volumes being used by servers and applications, or when migrating data from an old storage system to a newly set-up storage system, the data in multiple volumes can be migrated to other volumes.
For internal migration, see the following: Migrating volumes,
The following figure shows the high-level workflow of volume migration in Ops Center Administrator.
External volume migration supports two options; in each case the volumes must be attached to the target storage as the first step in migration:
- Both the source and target storage systems are managed in Ops Center Administrator.
- The source storage system is one that is not supported by Ops Center Administrator. In this case, the volume cannot be attached using Ops Center Administrator.
Volume virtualization is a required step in external migration and (optionally) attaching volumes. It creates external parity groups, creates external volumes on the external parity groups, and attaches the volumes. It creates a pointer to the original volume from the target storage system.