Powering On New Controller Enclosures

Prerequisites

All devices have been properly installed and device installation check has been performed.

Context

• Before powering on a storage system, ensure that all expansion cables have been properly connected. If expansion cable connections are adjusted after a storage system is powered on, the storage system may malfunction.
• Before powering on a new 4 U controller enclosure, ensure that a new controller enclosure has connected to a configuration disk enclosure on which slots 0 to 3 (where coffer disks reside) are fully populated with disks.
• Ensure that the configuration disk enclosure is a new device that never connects to any controller enclosure before this expansion. Otherwise, the expansion will fail.
• During the power-on, do not remove or insert optical fibers, network cables, coffer disks, or interface modules to avoid system data loss.

When powering on a storage system, do not wear an ESD wrist strap to avoid electric shock.

If the power of a backup battery unit (BBU) is insufficient, the BBU automatically charges when the storage system is powered on for the first time, and the Running/Alarm indicator on the BBU is blinking green. When the BBU is fully charged, its Running indicator is steady green.

Typically, an AC power distribution box (PDB) is configured on the top of a cabinet. If an AC PDB is not configured, skip the information related to PDBs.

Figure 11-41 shows an AC PDB.

Figure 11-41 AC PDB

Correct power-on sequence:

• Turn on the external power switches corresponding to all the devices.
• Press the Power button on any controller.

Procedure

1. Optional: If an AC PDB is configured, check the labels on power cables and match the power cables with power switches in the PDB.

   For example, if the label on the AC power cable connected to a controller enclosure shows PowerBox Output B_8, it indicates that the power cable of the controller enclosure corresponds to power switch SW8 on module Output B. You can turn on that power switch to power on the controller enclosure.

2. Optional: If an AC PDB is configured, turn on the power switches corresponding to all the devices in sequence.
3. Press the power button of the controller enclosure.
   • Do not hold down the power button for a long time when powering on the storage system.
   • The power-on of the storage system takes 15 to 30 minutes.
   • After the controller enclosure is powered on, other disk enclosures connected will be automatically powered on.
   • After system power-on, the disk initialization process automatically starts. The time required for the process is dependent on the quantity of the disks to be initialized.

Follow-up Procedure

The following figures and indicator descriptions are only used to help you determine whether a storage system is successfully powered on. For details about indicators, see the Hardware Description of the storage system.

• 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.
• The Running indicators on coffer disks are steady green, and the Alarm/Location indicators are off.
  • Disks with coffer disk labels are coffer disks.
  • Before services are configured, the Running indicators on the first three coffer disks are blinking green, and the Alarm/Location indicators are off.

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