Huawei OceanStor Dorado V3 Series - Checking Hardware Installation; Powering on the Storage System

5a
Switching on external power supplies
Turn on external power supplies in the following sequence: disk enclosures → controller enclosures → NAS units (if
configured) → switches (for a SAN) → application servers.
Checking cable connections
4a Checking device installation
4b
Check Item Normal Abnormal
Controller enclosure
 The device sits stably on the guide rails without
displacement.
 Screws are properly secured.
 The device slants or cannot be detected.
 Screws are loose or have fallen off.
Disk enclosure
(Optional) NAS unit
Check Item Normal Abnormal
Ground cable, optical fiber cable,
mini SAS HD electrical
cable/optical cable, network
cable, and serial cable
The cable is fully inserted and secured. The cable is loose or disconnected.
AC power cable
 The AC power cables for each controller
enclosure or disk enclosure are connected to two
separate power supplies for redundancy.
 The AC power cables are secured with plastic
buckles.
 The AC power cables for each controller
enclosure or disk enclosure are
connected to the same power supply.
 The AC power cables are not secured
with plastic buckles.
DC power cable
The OT terminal of the black cable connects to the
RTN (+) terminal and the OT terminal of the blue
cable connects to the NEG (-) terminal.
The OT terminal of the blue cable connects to
the RTN (+) terminal and the OT terminal of
the black cable connects to the NEG (-)
terminal.
4 Checking Hardware Installation
5 Powering On the Storage System
 To avoid electric shock, do not wear an ESD wrist strap when the storage system is powering on.
 Do not change cable connections between enclosures after power-on. Otherwise the storage system may malfunction.
 If the expansion cables are incorrectly connected, power off the device, reconnect the expansion cable, and power on
the device.
 Follow the correct power-on sequence of the storage system: Turn on the external power supplies for each device (disk
enclosures first, then controller enclosures and NAS units). → Press the power buttons on the controller enclosures. → Power
on the switches. → (If configured) Press the power buttons on the NAS units. → Power on the application servers.
 Follow the correct power-off sequence of the storage system: Stop host services. → (If configured) Press and hold down the
power buttons (typically for 5 seconds) on the NAS units until the units are completely powered off. → Press and hold down the
power buttons (typically for 5 seconds) on the controller enclosures until the system is completely powered off. → Disconnect
the controller enclosures, disk enclosures and NAS units from their power supplies.
The power-on of the storage system takes 15 to 30 minutes. When the power indicator on the controller enclosure no longer
blinks, the power-on is completed.
16
NOTICE
Scenario 1 Turning on the switches of the power
distribution box
Scenario 2 Turning on the switch of the PDU
Front
Rear Front
Rear