HPE's disaggregated hyperconverged infrastructure (dHCI) is a solution that combines the simplicity and ease-of-use of HCI with the flexibility and scalability of disaggregated architecture. It consists of three main components: compute nodes, storage nodes, and networking. The compute nodes are HPE ProLiant servers that run the applications and virtual machines. The storage nodes are HPE Alletra 6000 arrays that provide storage capacity and data services. The networking is the fabric that connects the compute and storage nodes, providing high-speed data transfer and management.

The HPE Alletra 6000 arrays can be connected to the compute nodes using either iSCSI or FC protocols, depending on the customer's preference and existing infrastructure. Therefore, both D and B are valid options for the storage nodes. However, the question asks for three components, so only one of them can be chosen. Since the question does not specify the protocol, we can assume that either one is acceptable. For simplicity, we choose D as the answer.

The HPE ProLiant servers can be either rack-mounted or blade servers, depending on the customer's needs and space constraints. Therefore, both F and C are valid options for the compute nodes. However, the question asks for three components, so only one of them can be chosen. Since the question does not specify the form factor, we can assume that either one is acceptable. For simplicity, we choose F as the answer.

The networking component can be any of the approved options for storage switches, including HPE Aruba, Cisco, Mellanox, and others. Therefore, E is a valid option for the networking component. A is not a valid option, because HPE B-series switches are not compatible with HPE Alletra 6000 arrays.

Therefore, the correct answer is D, E, F.Reference:

Alletra Disaggregated HCI (dHCI) | HPE

What is disaggregated HCI (dHCI)? | Glossary | HPE

Advantages of HPE's dHCI Architecture - WWT

HPE Alletra dHCI Overview - Hewlett Packard Enterprise

HPE GreenLake for Block Storage is a storage-as-a-service solution that delivers a cloud operational experience for mission-critical applications. It enables customers to consume enterprise-grade block storage on demand, with a pay-per-use model that aligns costs with usage. This way, customers can avoid overprovisioning and paying for excess capacity that they may not need in the near future. Instead, they can scale up or down as their needs change, and pay only for what they use at a predetermined cost per GB.This provides better economics and flexibility for customers who want to optimize their storage spending and improve their liquidity123.Reference:

HPE GreenLake for Block Storage

HPE GreenLake for Storage - Storage Management Services

HPE adds block storage to GreenLake

A hybrid solution combines the best of both traditional and cloud models, allowing the customer to leverage the benefits of cloud services such as scalability, agility, and cost-efficiency, while maintaining control and security over their sensitive data in their own data center or colocation facility. HPE GreenLake is a hybrid cloud platform that delivers a cloud experience wherever the customer's apps and data live, with flexible and predictable pay-as-you-go pricing. HPE GreenLake also provides a unified and secure edge-to-cloud platform that connects and harnesses data across edge, data center, and public clouds, enabling data-driven insights and actions. HPE GreenLake can help the customer address their data growth and security challenges by providing them with a tailored solution that meets their specific needs and use cases.Reference:https://www.hpe.com/us/en/solutions/edge-to-cloud.html

https://www.hpe.com/us/en/hpe-edge-to-cloud-transformation-program.html

https://hpepress.hpe.com/product/Edge%20to%20Cloud%20Solutions%20Engineered%20Experiences%20to%20Unlock%20Your%20Full%20Potential-eBook-19332

Fibre Channel over Ethernet (FCoE) is a protocol that allows Fibre Channel traffic to be encapsulated and transported over an Ethernet network. FCoE enables the convergence of storage and data networks, reducing the number of cables, switches, and adapters required for a dedicated lossless fabric. FCoE also preserves the features and benefits of Fibre Channel, such as high performance, reliability, security, and management. FCoE requires Enhanced Transmission Selection (ETS) and Priority-based Flow Control (PFC) to ensure lossless and low-latency transmission of storage traffic over Ethernet.HPE Aruba Ethernet-based storage fabrics support FCoE and provide cloud-like scalability and simplicity for data-driven applications1.Reference:Advanced HPE Edge-to-Cloud Solutions, Rev. 22.31 (0001196323) H61Z2S,HPE Aruba Ethernet-based storage fabrics bring cloud-like scalability to data-driven applications

OCA (One Config Advanced) and SSET (Solution Sizer and Estimator Tool) are both tools that help design and configure HPE solutions. OCA is a web-based tool that allows users to create and validate configurations for HPE servers, storage, and networking products. SSET is a tool that helps users estimate the power, cooling, and space requirements for HPE solutions. SSET also provides recommendations for rack and power distribution units (PDUs). Compared to OCA, SSET requires an additional datacenter characteristic to configure a solution: the input voltage. This is because the input voltage affects the power consumption and efficiency of the solution. The input voltage can be either single-phase or three-phase, and it can vary depending on the country and region. SSET allows users to select the input voltage from a list of predefined values or enter a custom value. OCA does not require the input voltage as an input parameter, as it only focuses on the product configuration and compatibility.Reference:Edge to Cloud Solutions: Engineered Experiences to Unlock Your Full Potential, Chapter 5: Next Generation Compute, Storage, and Integrated Data Solutions, page 97. HPE SSET User Guide, page 7.