Powering On the Storage System

Prerequisites

If a storage system is shipped as an integrated bay, protective components are pre-installed at the front of a controller enclosure, as shown in Figure 3-80, to protect its connectors during transportation. Before powering on the storage system, remove the protective components.

Figure 3-80 Protective components for the controller enclosure

Power-On Sequence

Observe the following rules when powering on bays:

• Power on disk bays before powering on system bays.
• For system bays, follow the power-on sequence from 0 to n. For disk bays, there is no restriction on the power-on sequence.

• Before powering on a 4 U controller enclosure, ensure that the controller enclosure has been connected to the configuration disk enclosure (the enclosure with coffer disk identifiers) and coffer disks have been installed in slots 0 to 3 of the configuration disk enclosure.
• Ensure that the configuration disk enclosure is a new device that has never been connected to any controller enclosure.
• The power-on of the storage system takes 15 to 30 minutes.
• Devices must be grounded before the storage system is powered on. Otherwise, devices may be damaged.
• To avoid electric shocks, do not wear an ESD wrist strap when powering on the storage device.

The overall system power is controlled by power switches on power distribution units (PDUs). Each bay is equipped with PDUs that reside at the left and right sides in the rear of the bay. Your PDUs can be either European standard or North American standard. Choose the correct power-on sequence according to the type of PDUs configured.

Power-On Sequence for Systems Configured with European Standard PDUs

For a system configured with European standard PDUs, the correct power-on sequence is as follows:

1. Turn on PDU switches of all disk bays in sequence.
   • For European standard PDU switches (single-phase, 220 V, 32 A), turn on the switches in a sequence of B1 > B2.
   • For European standard PDU switches (three-phase, 380 V, 32 A), turn on the switches in a sequence of A1 > A2 > B1 > B2 > C1 > C2.
2. Turn on PDU switches of the system bays from system bay 0 to system bay n in sequence.
   • For European standard PDU switches (single-phase, 220 V, 32 A), turn on the switches in a sequence of B1 > B2.
   • For European standard PDU switches (three-phase, 380 V, 32 A), turn on the switches in a sequence of A1 > A2 > B1 > B2 > C1 > C2.

   For details about switches of European standard PDUs, see Power Supply Components of System Bays and Disk Bays.

3. Press the power button of all controllers in sequence, as shown in Figure 3-81.

   In a scenario with multiple controllers, all the controller enclosures must be powered on within three minutes. If the controller enclosures fail to power on within the specified period, the storage system fails to power on. In this case, contact Huawei technical support engineers.

   To power on the storage system, press the power button. If the power indicator of the controller enclosure is blinking green, the storage system is being powered on. Do not hold down the power button for more than five seconds; otherwise, the storage system will be powered off.

   Figure 3-81 Power button on a controller
   

Power-On Sequence for Systems Configured with High Voltage DC PDUs

For a system configured with high voltage direct current (HVDC) PDUs, the correct power-on sequence is as follows:

1. Turn on PDU switches of all disk bays in sequence.

   For HVDC PDU switches, turn on the switches in a sequence of B1 > B2.

2. Turn on switches of all system bays.

   For HVDC PDU switches, turn on the switches in a sequence of B1 > B2.

   For details about HVDC PDU switches, see Power Supply Components of System Bays and Disk Bays.

3. Press the power button of all controllers in sequence, as shown in Figure 3-82.

   In a scenario with multiple controllers, all the controller enclosures must be powered on within three minutes. If the controller enclosures fail to power on within the specified period, the storage system fails to power on. In this case, contact Huawei technical support engineers.

   To power on the storage system, press the power button. If the power indicator of the controller enclosure is blinking green, the storage system is being powered on. Do not hold down the power button for more than five seconds; otherwise, the storage system will be powered off.

   Figure 3-82 Power button on a controller enclosure
   

Power-On Check

After the system is successfully powered on, the status indicator on the front door of the bay becomes steady green. Figure 3-83 shows the status indicator on a bay with strip lights.

Figure 3-83 Status indicator on the bay

If you want to turn off the LED indicator, you can turn off its switch on the back of the bay's front door, as shown in Figure 3-84.

Figure 3-84 LED indicator switch

Table 3-18 describes the status of the indicator on the bay's front door.

The following figures and indicators are used only to check whether the system is powered on properly. For details about indicators, see sections about indicators on components in the Product Description.

Figure 3-85, Figure 3-86, Figure 3-87, Figure 3-88, Figure 3-89, and Figure 3-90 show the indicator status after the system is powered on.

Figure 3-85 Indicators on a smart SAS disk enclosure (front view)

Figure 3-86 Indicators on a smart SAS disk enclosure (front view)

Figure 3-87 Indicators on a smart NVMe disk enclosure (front view)

Figure 3-88 Indicators on a 2 U SAS disk enclosure (front view)

Figure 3-89 Indicators on a 4 U SAS disk enclosure (front view)

Figure 3-90 Indicators on a 4 U controller enclosure (front view)

Ensure that the system has been correctly powered on and is working correctly:

If data switches are configured, check the status of the indicators on the data switches too.

• The Power indicators on controllers, controller enclosures, and disk enclosures are steady green.
• The Alarm indicators on controllers, controller enclosures, and disk enclosures are off.

If any Alarm indicator is on, the device is faulty and you need to rectify the fault. For details about how to rectify faults, see the Troubleshooting Guide of the storage system. If a power indicator is not steady green, contact Huawei technical support engineers.