When using the Virtual Integrated Aggregate Storage (VIAS) method of storage provisioning in Dell VPLEX, the set of arrays available for provisioning storage is determined by the Array Management Provider (AMP) registered for each cluster. The AMP is responsible for managing the communication between the VPLEX and the back-end storage arrays.

Array Management Provider (AMP): The AMP is a software component that interfaces with the storage arrays to facilitate storage provisioning, monitoring, and management. It must be registered with each VPLEX cluster to manage the arrays1.

VIAS Provisioning: VIAS is a feature in VPLEX that simplifies the provisioning process by integrating with the AMP to provide a single interface for storage provisioning across multiple heterogeneous arrays1.

Cluster Selection: After selecting a cluster in the VIAS interface, the AMP registered for that particular cluster determines which arrays are available for provisioning. This ensures that storage is provisioned from arrays that are managed by the cluster’s AMP1.

Provisioning Process: The administrator can then select the appropriate array from the list provided by the AMP and proceed with the storage provisioning process using the VIAS interface1.

Best Practices: It is recommended to follow Dell EMC’s best practices for registering and configuring the AMP with VPLEX to ensure seamless storage provisioning and management1.

In summary, when using the VIAS method of storage provisioning in Dell VPLEX, the set of arrays available from which to provision storage is determined by the Array Management Provider registered for each cluster only.