DS8000 Service Documentation Version 7.5

Checking cables on all racks

Procedure

  1. At the rear of Rack-1, do the following steps at the rear of both CEC enclosures:
    1. Ensure that the following private network Ethernet cables are connected:
      • A black Ethernet cable is connected to P1-T5 (top) and P1-C2-T1 (top)
      • A gray Ethernet cable is connected to P1-T6 (bottom) and P1-C2-T2 (bottom)
      Figure 1. CEC enclosure PCIe and Ethernet locations (rear)
      CEC enclosure PCIe and Ethernet locations (rear)
    2. Gently push on each PCIe cable to ensure that it is latched. See Figure 1.
      • P1-C1-T1/T2/T3
      • P1-C3-T1
      • P1-C4-T1
      • P1-C8-T1/T2/T3 (if present)
  2. At the rear of Rack-1 check the following cables, See Figure 2 and Figure 3.
    1. Ensure that only black Ethernet cables are connected to the SW1 (left) Ethernet switch.
    2. Ensure that only gray Ethernet cables are connected to the SW2 (right) Ethernet switch.
    3. If you find any misplugged cables, use the cable location labels to properly connect them.
      Note: A cross-connected cable may cause the installation to fail and require next level of support to recover.
      Figure 2. Ethernet switch tray locations (Model 961, rack version 1)
      Ethernet tray (switches, laptop fans, power distribution assembly) locations
      Figure 3. Ethernet switch tray locations (Model 961 rack version 2 rear)
      Ethernet switch tray locations (Model 961 rack version 2 rear)
  3. At the front of the rack, with the management console laptop tray pulled out to the service position, check the cable connections as shown in Figure 4:
    1. Ensure that the black Ethernet cable and black USB cable connect to the same USB Ethernet adapter.
    2. Ensure that the gray Ethernet cable and gray USB cable connect to the same USB Ethernet adapter.
    Figure 4. ThinkPad laptop USB Ethernet adapter cables (rack version 1 shown, rack version 2 similar)
    ThinkPad laptop USB Ethernet adapter cables
  4. For T520 and T530 management consoles, ensure the power, Ethernet, USB modem, and USB Ethernet cables are securely connected. See Figure 5.
    1. Black cable from USB Ethernet adapter to left side, upper USB for eth0 (black) Callout label 1
    2. Gray cable from USB Ethernet adapter to left side, lower USB for eth3 (gray) Callout label 2
    3. USB modem cable to rear USB for modem Callout label 3
    4. Ethernet cable from front of rack to Ethernet connector for eth2 (customer) Callout label 4
    5. Power cable to the power connector Callout label 5
    Figure 5. ThinkPad T520, T530 laptop unit cable connections
    ThinkPad T510 laptop unit cable connections
  5. For T540 management consoles, ensure the power, Ethernet, USB modem, and USB Ethernet cables are securely connected. See Figure 6 and Figure 7.
    1. Black cable from USB Ethernet adapter to left side, front USB for eth0 (black) Callout label 7 (Figure 6)
    2. Gray cable from USB Ethernet adapter to left side, rear USB for eth3 (gray) Callout label 6 (Figure 6)
    3. USB modem cable to right side, rear USB for modem Callout label 6 (Figure 7)
    4. Ethernet cable from front of rack to Ethernet connector for eth2 (customer) Callout label 1 (Figure 6)
    5. Power cable to the power connector Callout label 2 (Figure 6)
    6. Power cable to the power on card connector near Callout label 2 (Figure 6)
    Figure 6. ThinkPad T540 laptop unit cable connections (left and rear)
    ThinkPad T540 laptop unit cable connections (left and rear)
    Figure 7. ThinkPad T540 laptop unit cable connections (right)
    ThinkPad T540 laptop unit cable connections (right)
  6. At the rear of each I/O enclosure for Rack-1 and Rack-2 (if present), gently push on each PCIe cable (P1-C7-T1 and P1-C7-T2) to ensure that it is latched, see Figure 8.
    1. If Rack-1 has a coil of PCIe and SPCN cables behind the I/O enclosures as shown in Figure 9, loosen the cable tie at the top of the coil and move it temporarily out of the way.
    Figure 8. I/O enclosure PCIe cable locations (rear)
    I/O enclosure PCIe cable locations (rear)
    Figure 9. Rack-1 PCIe and SPCN cable coil for shipping
    Rack-1 PCIe and SPCN cable coil for shipping
  7. At the rear of each rack behind the DC-UPS power supplies, ensure all power cables connected to each power distribution unit (PDU) connector J1-J10 are fully seated. See Figure 10.
    Figure 10. Locations for power distribution unit (PDU) connectors
    Locations for power distribution unit connectors
  8. Will the Rack-1 you are installing be connected to an existing Rack-1 (already installed) by private network cables (gray and black)?
    • Yes. The two Rack-1s will share their internal management consoles (primary and secondary roles). The management console in new Rack-1 must be temporarily disconnected from the private network. Go to Checking management consoles (HMCs) if installing second Rack-1.
    • No. The new Rack-1 will not be connected to an existing Rack-1. Go to the next step.
  9. Does the new storage facility to be installed have one or more storage expansion racks?