Connecting Power Cables of Disk Enclosures

Prerequisites

• Disk enclosures have been installed.
• The live network connection topology is ready.
• The following installation tools and materials are available and ready for use:
  • Ground cable
  • Phillips screwdriver (M3 to M6)
  • M5 screws
  • Diagonal pliers

Precautions

• To avoid electric shock, do not wear an ESD strap when powering on a storage system.
• To avoid system data loss, do not remove or insert optical fibers, network cables, coffer disks, or interface modules when the equipment is powering on.

Procedure

1. Connect power cables.
   1. Connect disk enclosures to the power sockets on the cabinet using AC power cables.
   2. Secure the AC power cables using cable clips.

2. Check the indicator status of the disk enclosure to ensure that it has been properly connected to the storage system.

   Figure 8-71 shows the front-panel indicators of a 2 U disk enclosure in the normal power-on state.

   Figure 8-71 Front-panel indicators of a 2 U disk enclosure after being powered on normally
   

   1	Running indicator of the disk module (steady green)	2	Location/Alarm indicator of the disk module (off)
   3	Location indicator of the disk enclosure (off)	4	Alarm indicator of the disk enclosure (off)
   5	Power indicator of the disk enclosure (steady green)	-	-

   After the device is powered on, check whether the alarm indicators on the device are on. If any alarm indicator is on, locate and rectify the fault. For details about how to locate and rectify faults, see the troubleshooting guide corresponding to your product.

   If an alarm is generated on DeviceManager indicating that expansion cables of a SAS disk enclosure are incorrectly connected, remove all expansion cables and power cables from the disk enclosure where the alarm is generated, and reinsert those cables according to the standard networking. After the operation is complete, ensure that the alarm is cleared before performing subsequent operations. If the alarm persists for over 6 minutes, contact Huawei technical support.

3. Log in to the OceanStor DeviceManager. Check whether Health Status and Running Status of the added disk enclosures and their disks are Normal and Online respectively.

   If any disk enclosure or disk is in an abnormal state, contact Huawei technical support.

Prerequisites

• Disk enclosures have been installed.
• The live network connection topology is ready.
• The following installation tools and materials are available and ready for use:
  • Ground cable
  • Phillips screwdriver (M3 to M6)
  • M5 screws
  • Diagonal pliers

Precautions

• During the power-on, do not wear an ESD wrist strap to avoid the risk of getting an electric shock.
• During the power-on, do not remove or insert optical fibers, network cables, coffer disks, or interface modules to avoid the risk of losing system data.

Procedure

1. Connect power cables.
   1. Connect disk enclosures to the power sockets on the cabinet using AC power cables.
   2. Secure the AC power cables using cable clips.

2. Check the indicator status of the disk enclosure and ensure that the disk enclosure has been connected to the storage system.

   Check the indicator status of a 4 U SAS disk enclosure.

   Figure 8-72 shows the front-panel indicators of a 4 U disk enclosure in the normal power-on state.

   Figure 8-72 Front-panel indicators of a 4 U SAS disk enclosure after being powered on normally
   

   1	Running indicator of the disk module (steady green)	2	Location/Alarm indicator of the disk module (off)
   3	Location indicator of the disk enclosure (off)	4	Alarm indicator of the disk enclosure (off)
   5	Power indicator of the disk enclosure (steady green)	-	-

   After the device is powered on, check whether the alarm indicators on the device are on. If any alarm indicator is on, you must locate and rectify the fault. For details about how to locate and rectify faults, see the Troubleshooting.

   If an alarm is generated on DeviceManager indicating that expansion cables of a SAS disk enclosure are incorrectly connected, remove all expansion cables and power cables from the disk enclosure where the alarm is generated, and reinsert those cables according to the standard networking. After the operation is complete, ensure that the alarm is cleared before performing subsequent operations. If the alarm persists for over 6 minutes, contact Huawei technical support.

3. Log in to the OceanStor DeviceManager. Check whether Health Status and Running Status of the added disk enclosures and their disks are Normal and Online respectively.

   If any disk enclosure or disk is in an abnormal state, contact Huawei technical support.

Prerequisites

• Disk enclosures have been installed.
• The live network connection topology is ready.
• The following installation tools and materials are available and ready for use:
  • Ground cable
  • M3 to M6 Phillips screwdriver
  • M5 screw
  • Diagonal pliers

Precautions

• During the power-on, do not wear an ESD wrist strap to avoid the risk of getting an electric shock.
• During the power-on, do not remove or insert optical fibers, network cables, coffer disks, or interface modules to avoid the risk of losing system data.

Procedure

1. Connect the ground cable.
   1. Remove plastic insulation tubes from the OT terminals of a ground cable using diagonal pliers.
   2. Remove the ground screw from the disk enclosure with a Phillips screwdriver.
   3. Fasten one OT terminal of the ground cable to a ground screw hole on the device using a ground screw, as shown in Figure 8-73.
      Figure 8-73 Connecting a ground cable
      

   4. Connect the other OT terminal of the ground cable to the ground terminal on the cabinet in the same way.
   5. Repeat the preceding operations to connect the ground cables of all devices.

2. Connect power cables.
   1. Connect disk enclosures to the power sockets on the cabinet using AC power cables.
   2. Secure the AC power cables using cable clips.

3. Check the indicator status of the disk enclosure and ensure that the disk enclosure has been connected to the storage system.

   Check the indicator status of a high-density disk enclosure.

   Figure 8-74 shows the front-panel indicators of a high-density disk enclosure in the normal power-on state.

   Figure 8-74 Front-panel indicators of a high-density disk enclosure after being powered on normally
   

   1	High-density disk enclosure Location indicator (off)	2	High-density disk enclosure Alarm indicator (off)
   3	High-density disk enclosure Power indicator (steady green)	4	High-density disk enclosure over temperature Alarm indicator (off)
   5	High-density disk enclosure internal module Alarm indicator (off)	6	High-density disk enclosure rear module Alarm indicator (off)

   After the device is powered on, check whether the alarm indicators on the device are on. If any alarm indicator is on, you must locate and rectify the fault. For details about how to locate and rectify faults, see the Troubleshooting.

   If an alarm is generated on DeviceManager indicating that expansion cables of a SAS disk enclosure are incorrectly connected, remove all expansion cables and power cables from the disk enclosure where the alarm is generated, and reinsert those cables according to the standard networking. After the operation is complete, ensure that the alarm is cleared before performing subsequent operations. If the alarm persists for over 6 minutes, contact Huawei technical support.

4. Log in to the OceanStor DeviceManager. Check whether Health Status and Running Status of the added disk enclosures and their disks are Normal and Online respectively.

   If any disk enclosure or disk is in an abnormal state, contact Huawei technical support.