A Dell EMC PowerStore T appliance is architected with two nodes (Node A and Node B) for high availability. The storage network is used for host I/O via protocols like iSCSI or NVMe/TCP. To ensure continuous data access and support the dual-node architecture, each node must have its own IP address on the storage network. This allows hosts to connect to either node, which is essential for failover and load balancing. Therefore, the absolute minimum requirement is one IP address for Node A and one for Node B, resulting in a total of two IP addresses.

A. 3: This is more than the minimum required. While a valid number for some configurations, it is not the base requirement for functionality.

B. 1: A single IP address would be a single point of failure, as it could only be assigned to one of the two nodes, defeating the high-availability design.

D. 4: This is a common best practice for redundancy (two IPs per node), but it is not the minimum number required to establish basic storage network connectivity.

1. Dell Technologies. (2023). Dell PowerStore: Networking Guide for PowerStore T Models. Page 13

Section: "Storage network". The document states

"For PowerStore T models

the storage network is configured during the initial configuration process. During this process

you are prompted to configure at least one storage IP address for each node in the appliance."

2. Dell Technologies. (2023). Dell PowerStore: Planning Guide. Page 21

Section: "Network IP address planning"

Table 6 "Storage network". The planning worksheet explicitly lists separate entries for "Node A Storage IP Address" and "Node B Storage IP Address

" confirming a minimum of two are required for the initial setup.