Replacing a System Disk Module on a Mainboard (OceanStor Pacific 9146/OceanStor Pacific 9346/OceanStor Pacific 9546)

Impact on the System

• If RAID 1 is configured, the system will not be affected. If RAID 1 is not configured, the system will be faulty.
• Before replacing a system disk module on a node, you must power off the node. This affects the services running on the node.

Prerequisites

• The replacement system disk module (spare part) has been prepared.

• The faulty system disk module has been located.

Precautions

• Do not remove the two system disk modules on a device at the same time. Otherwise, the device will not work properly.
• To prevent system faults, do not replace system disk modules with ones that have been used before.
• To prevent replacement failures, ensure that replacement disk modules are free from obvious foreign objects, collision, and scratches.
• To prevent replacement failures, ensure that the disk slots are free from foreign objects or obvious damage before installing disk modules.
• To prevent system faults, use the BOM code of the faulty disk module to apply for a replacement disk module.
• To prevent damaging system disk modules or connectors, remove and install disk modules with even force.
• When replacing a system disk module, hold down the node power button. After the backup power data is flushed to disks and the node running indicator is off, remove the faulty node.
• After a system disk module on a device is replaced, data will be reconstructed on the replacement system disk module. Do not remove and insert the other system disk module on the device during data reconstruction. Otherwise, the device will not work properly.

During the replacement of system disk modules, complete the following operations within ten minutes: Remove the node, remove and insert system disk modules, and install the node back into the system subrack. Otherwise, the heat dissipation of the storage device will be affected and the system will be faulty.

Tools and Materials

• Phillips screwdriver
• ESD gloves
• ESD wrist strap
• ESD bag
• Labels

Procedure

1. Remove the node.
   

   • The method for removing a node is the same for OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)/OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node)/OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node)/OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) and OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node). This section uses OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) as an example.
   • The time from node removal to installation and restoration cannot exceed 10 minutes. Otherwise, the system will be faulty due to overtemperature.
   1. Rotate the node levers to open them and slowly pull them out of the node. See (1) and (2) in Figure 1.
      Figure 1 Unlocking the levers of a node
      
   2. Pull the levers on both sides of the node to slowly pull the node out of the system subrack. See Figure 2.
      

      When the warning sign on the node cover is completely exposed, release the levers, hold the node with both hands, and slowly pull out the node.

      Figure 2 Removing a node
      

2. Remove the node cover.
   Press the release button on the node cover and push the cover outwards. See (1) and (2) in Figure 3 or Figure 4.

   Figure 3 Removing the node cover of OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) and OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)
   

   Figure 4 Removing the node cover of OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node), OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node), and OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node)
   

3. Label and remove all power cables and signal cables of the node.
4. Remove the rear disk assembly or rear disk assembly filler module.
   

   • When removing a system disk module, you only need to remove the rear disk assembly on the right of the node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node) or OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) and only need to remove the rear disk assembly filler module on the right of the node in OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node), OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node), or OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node).
   • Each node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node) or OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) has only one CPU on the left. Filler modules except the rear disk assembly are installed on the right of each node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node). Filler modules are installed on the right of the node in OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node).
   Loosen the screws that secure the rear disk assembly or rear disk assembly filler module, and lift the rear disk assembly or rear disk assembly filler module. See (1), (2), and (3) in Figure 5 or Figure 6.

   Figure 5 Removing a rear disk assembly from OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) and OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)
   

   Figure 6 Removing a rear disk assembly filler module from OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node), OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node), and OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node)
   

5. Remove riser cards.
   

   • When removing a system disk module, you need to remove the riser cards on the left and right of a node.
   • When removing riser cards, record the installation position of each riser card.
   • The riser card on the right of a node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node) or OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) is a filler module. The method for removing a filler module is the same as that for removing a riser card.
   Loosen the captive screw that secures a riser card, and lift the riser card. See (1) and (2) in Figure 7 or Figure 8.

   Figure 7 Removing a riser card from OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) and OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)
   

   Figure 8 Removing a riser card from OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node), OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node), and OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node)
   

6. Remove the air duct.
   

   When removing a system disk module, you only need to remove the air duct on the right of a node.

   Skip this step for a node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node) or OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) because there is no air duct on the right of the node.

   Lift the air duct. See Figure 9 or Figure 10.

   Figure 9 Removing an air duct from OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node)
   

   Figure 10 Removing an air duct from OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node) and OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node)
   

7. Remove the system disk module.
   

   • The method for removing a system disk of OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)/OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node)/OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node)/OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) is the same as that for removing a system disk of OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node). This section uses OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) as an example.
   • Each node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node) or OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) has only one CPU on the left. Filler modules except the rear disk assembly are installed on the right of each node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node). Filler modules are installed on the right of the node in OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node).
   Press the latch that secures the disk module, tilt the disk module upwards by 20° to 30°, and remove the disk module. See (1) and (2) in Figure 11.

   Figure 11 Removing a disk module
   

8. Put the removed system disk module into an ESD bag.
9. Take the replacement system disk module out of its ESD bag.
10. Install the system disk module.
    

    • The method for installing a system disk of OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)/OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node)/OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node)/OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) is the same as that for installing a system disk of OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node). This section uses OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) as an example.
    • Each node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node) or OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) has only one CPU on the left. Filler modules except the rear disk assembly are installed on the right of each node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node). Filler modules are installed on the right of the node in OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node).
    Tilt the disk module 20° to 30° and insert it into the node slot. Press the latch that secures the disk module, and press the disk module until it is secured to the latch. See (1) and (2) in Figure 12.

    Figure 12 Installing a disk module
    

11. Install the air duct.
    

    Skip this step for a node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node) or OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) because there is no air duct on the right of the node.

    Install the air duct downwards into the node. See Figure 13 and Figure 14.

    Figure 13 Installing the air duct of OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node)
    

    Figure 14 Installing the air duct of OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node)
    

12. Install riser cards or filler modules.
    

    When installing riser cards, ensure that the installation positions of the riser cards are the same as those before the removal. Otherwise, services may be affected.

    The riser card on the right of a node in OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node) or OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) is a filler module. The method for installing a filler module is the same as that for installing a riser card.

    Place a riser card downwards into the node, and tighten the captive screw to secure the riser card. See (1) and (2) in Figure 15 or Figure 16.

    Figure 15 Installing a riser card of OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) and OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)
    

    Figure 16 Installing a riser card of OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node), OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node), and OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node)
    

13. Install the rear disk assembly or rear disk assembly filler module.
    Place a rear disk assembly or rear disk assembly filler module downwards into the node, and tighten the screws to secure the rear disk assembly or rear disk assembly filler module. See (1) and (2) in Figure 17 or Figure 18.

    Figure 17 Installing a rear disk assembly of OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) and OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)
    

    Figure 18 Installing a rear disk assembly filler module of OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node), OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node), and OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node)
    

14. Connect the internal power cables and signal cables on the right of the node according to the labels.
15. Install the node cover.

    Place the latches of the node cover into the slots and align the node cover with the node. Push the node cover inwards with both hands until it cannot move. See Figure 19 or Figure 20.

    Figure 19 Installing a node cover of OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) and OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)
    
    Figure 20 Installing a node cover of OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node), OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node), and OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node)
    

16. Install the node.
    

    The method for installing a node is the same for OceanStor Pacific 9546 (Two Nodes per Chassis, One CPU per Node)/OceanStor Pacific 9546 (One Node per Chassis, Two CPUs per Node)/OceanStor Pacific 9346 (One Node per Chassis, Two CPUs per Node)/OceanStor Pacific 9146 (One Node per Chassis, One CPU per Node) and OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node). This section uses OceanStor Pacific 9546 (Two Nodes per Chassis, Two CPUs per Node) as an example.

    1. Rotate the node levers to open them and slowly pull them out of the node. See (1) and (2) in Figure 21.
       Figure 21 Unlocking the levers of a node
       

    2. Push the node into the system subrack along the guide rails. When the node cannot move anymore, push the levers into the node until the levers cannot move. See (1) and (2) in Figure 22.
       Figure 22 Installing a node
       
    3. Rotate the levers to reset them, and press the levers until you hear a click to completely lock the node into the system subrack. See (3) and (4) in Figure 22.

17. Connect signal cables between the node and peripheral devices according to the labels. Ensure that all cables are correctly connected. Then press the power button of the node to power on the node.

Follow-up Procedure

After the system disk module is replaced, label it to facilitate subsequent operations.