The virtual storage machine is the container that is used to manage virtualized storage system resources. When you use global storage virtualization functions (global-active device or nondisruptive migration), you create a virtual storage machine within a physical storage system to enable the server to recognize two storage systems as one virtual storage system. You can create multiple virtual storage machines within a physical storage system.
For example, if VSP E1090 with serial number 720000 is migrated to VSP One B28, create a storage system with virtual information whose serial number is 720000 and model name is VSP E1090 in the migration target storage system. The storage system with virtual information configured refers to a virtual storage machine. The set virtual information refers to a virtual ID.
This figure shows the relationship between a (physical) storage system and virtual storage machines.
Virtual IDs
To make the server recognize multiple storage systems as one virtual storage machine, set virtual IDs for the following resources to virtualize them. Use global storage virtualization to set virtual IDs for each resource group or each LDEV.
If a virtual storage machine contained in multiple storage systems is created, a virtual LDEV ID used in a different storage system might be assigned. Configure the settings so that a virtual LDEV ID used in a different storage system is not assigned.