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Powering on a Device
This section guides you through the process of powering on a storage device that has been powered off.
Prerequisites
The storage device contains a disk enclosure with coffer disks.
Precautions
- If you are powering on a storage system for the first time or after clearing the system configurations, first ensure that controller A is correctly connected and inserted in the controller enclosure. Otherwise, the storage system cannot be correctly powered on.
- To avoid electric shock, do not wear an ESD wrist strap while powering on a storage device.
- To avoid data loss, do not remove or insert any optical fibers, network cables, coffer disks, and interface modules while powering on a storage device.
- After the storage device has been powered on, do not perform online modification of expansion cable connections, as this may result in device failures.
- Complete expansion cable connections for a newly added disk enclosure before you power on the enclosure. Also, do not modify any expansion cable connections after the new disk enclosure has been powered on, as this may result in device failures.
Always adhere to the following power-on sequence:
- Switch on external power supplies of the hardware components.
- Press the power button on the controller enclosure.
- Switch on Ethernet switches or Fibre Channel switches (if they are configured but not powered on).
- Switch on application servers (if they are not powered on).
Procedure
- Check that all of the power cables have snapped into place.
- Check the labels on the power cables and identify the power switches corresponding to those cables in the power distribution unit (PDU).
- Sequentially switch on the identified power switches.
- For a multi-controller storage system that uses a switch-based network, power on the switches used for Scale-out.
- Switch on the controller enclosure.
- 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, as this will cause the storage system to be powered off.
- During the power-on, the power indicator of the controller enclosure blinks until the storage device is fully powered on. The process 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
After the storage device has been powered on, verify that the indicator of each hardware component is in a normal state by referring to Checking the Running Status of the Storage Device. Rectify any anomalies you find, making referring to the Event Reference or Troubleshooting.
