HP XP Array Manager Software - Manual (Page 265)

B Managing storage resources that have
virtual IDs
This module describes specific functionality available for virtualized volume resources for which virtual
IDs are assigned.
About managing storage resources that have virtual IDs
When replacing an old storage system with a HP XP7 or HP P9500, you can use virtual IDs to migrate
a resource without stopping the resource. Virtual IDs provide information about the old storage system,
and are configured on the migration-destination resource. By using Device Manager, you can check
virtual IDs after data migration and perform operations on a resource that has been assigned virtual
IDs. Even if you can view the virtual ID of a resource, until migration of the data of the target resource
is complete, you cannot perform operations on the resource.
During the three stages of data migration, accessing the resource data changes from using the physical
ID to the virtual ID, as the following graphic shows:
• Before data migration (operation using physical IDs)
Before data migration, a host uses physical IDs to perform operations on the migration-source re-
source. Operations can be performed on the resource by using Device Manager.
• During data migration
The path from the host to the storage system is changed from the migration source to the migration
destination. Configure virtual IDs on the migration-destination resource, and then migrate the data
User Guide 265