IBM 6.1.8.2, Hardware Planning And Installation Manual, Page: 37 / 114

Chapter 2. Technical overview
The technical overview topics provide information about the key concepts of IBM Storage Scale System
Utility Node.
Target audience of this chapter: Customers and IBM Service Support Representative (SSR).
System overview
A utility node (MTM 5149 - 23E) is capable of offering scalable performance (64 bit), high-bandwidth
memory design, and 16XPCIe bus implementation.
This document explains a single-socket EMS node and dual-socket protocol node. The EMS supports up
to 512 GB RDIMM, whereas the protocol node supports up to 1 TB RDIMM. The system is compatible with
the utility node storage platform.
The use of the terms “utility node” and “server” in the following information refer to the IBM Storage
Scale System Utility Node.
Figure 1. Front view of the utility node
The following figure shows PSUs, PCIe slots, and ports in the utility node.
Figure 2. Rear view of the utility node
©
Copyright IBM Corp. 2022, 2023 17