Reviewing Model 092 expansion enclosure location guidelines
Consult these guidelines when you plan the location of Model 092 expansion enclosure and any existing
Elastic Storage System in your environment, including any IBM Spectrum Scale client or protocol node.
Each ESS 5000 cluster consists of the following components:
• One or more ESS 5000 building blocks. Each building block is composed of two I/O server nodes. Each
I/O server node requires 2U (standard rack units) space in a rack. The I/O server nodes are attached to
up to six Model 092 expansion enclosures.
• One ESS Management Server (EMS) node. The EMS node requires 2U space in a rack. The EMS can
support several ESS 5000 building blocks.
Planning for power for Model 092 expansion enclosure
Each Model 092 expansion enclosure is provided power through two power supply units (PSU). Either of
the power supply units can power the enclosure independently if there is a loss of input power to the
other power supply in the enclosure.
Plan to connect the power cords of the power supplies on the left side of the enclosures (when viewed
from the rear) to one power source, and connect the power cords of the power supplies on the right side
of the enclosures to another power source.
Attention: The power cord is the main power disconnect. Ensure that the socket outlets are
located near the equipment and are easily accessible.
Figure 5 on page 24 shows the front and the rear of a Model 092 expansion enclosure.
Figure 5. Front and rear view of Model 092 expansion enclosure
Planning for cable connections to PDUs
Each Model 092 expansion enclosure must be connected to a pair of power outlets by selecting
appropriate feature codes while ordering the system. The following table lists the feature codes of the
power cords:
24 IBM Elastic Storage System 5000: Model 092 Hardware Guide
Summary of Contents for Elastic Storage System 5000 Series
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