Before You Install - Huawei OceanStor N8500 T Series Installation Manual

OceanStor N8500 Clustered NAS Storage System
Installation Guide (for T Series V100R005)

2.1 Before You Install

Making plans for power distribution, device assembling, system maintenance, IP address
assignment, and device cascading can facilitate device installation.
Power Distribution Plan
An appropriate power distribution plan contributes to high device security, stability, and
reliability.
Table 2-1 Power distribution principles
Location
Equipment
room
Cabinet
Issue 02 (2015-09-22)
Table 2-1 describes power distribution principles that the N8500 must comply with.
Principle
1. A backup electrical circuit is available for supporting power input to the
cabinet.
2. Input voltages for a cabinet are the same.
3. A cabinet's power distribution unit (PDU) supports two independent
power supplies. The failure of one power supply does not affect the other
one.
4. The rated load traffic of power cables can meet the requirements for the
maximum running power of cabinets and devices. Circuit breakers and
power cables must be deployed as required.
5. Power input terminals of a cabinet are safely and conveniently connected.
1. Power input circuits of the device whose power input works in N+1 backup
mode connect to different branches of the power supply.
2. Devices in the cabinet are effectively protected against overvoltage and
short circuits.
3. Devices (except the devices that require device-level backup and the
accessories that do not affect services) in the cabinet are provided with non-
disruptive power supply.
4. A PDU is configured in the cabinet. It receives power from the external
power source and supplies power to the devices in the cabinet.
5. Devices in a cabinet must receive power from the PDU of this cabinet and
never from another cabinet.
6. If the actuator of a circuit breaker operates in a vertical direction, move
the actuator upward will connect the power supply, while moving the
actuator down will disconnect the power supply. If the actuator of a circuit
breaker operations in a horizontal direction, moving the actuator to the left
will disconnect the power supply, while moving the actuator to the right will
connect the power supply.
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2 Getting Started
10