Power modules
Power modules are subcomponents of enclosures. A power module takes electrical power from the rack
Power Distribution Units (PDUs) and distributes the power to other components in the enclosure.
For redundancy, two power modules are installed in the enclosure.
Figure 8. Power module
SSR access port
The bottom USB-A port is the SSR access port on the back panel of the canister that a service personnel
can use to initialize a system.
You can use the SSR access port to set the IP address of the management interface. For more
information, see IBM ESS Install Complete Guide.
Note: An IBM intranet connection is required to access this content.
In each of the IBM Storage Scale System 3500 server canister, the bottom USB-A port is designated as
the SSR access port, as shown in the following gure.
Figure 9. SSR access port
Hardware specication sheets
EMS node specications
IBM Storage Scale System 3500 uses one EMS node in the basic conguration. The EMS node acts as the
management server and provides infrastructure for hardware monitoring and hosts GUI.
The EMS server has the following roles:
• Quorum node
Chapter 2. Technical overview
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