DS8000 Service Documentation Version 7.5

Checking customer preparations

Before you begin

DANGER
HEAVY EQUIPMENT -- PERSONAL INJURY OR EQUIPMENT DAMAGE MAY RESULT IF MISHANDLED (D006)

Procedure

  1. Record the start date and time for the Check customer prep through safety checks phase in Table 3, in section Recording information for the installation report.
  2. Only the following hardware configurations of storage facilities (SF) and management consoles (HMC) are supported. If the configuration you are installing does not match one of these configurations, stop and call the next level of support.
    • 1x1 = One HMC and one SF, (HMC is internal to SF rack-1)
    • 2x1 = Two HMCs and one SF (first HMC is internal to SF rack-1, the second HMC is "external" which means it is in a customer rack)
    • 2x2 = Two HMCs and two SFs (first HMC is internal to SF1, the second HMC is internal to SF2)
    Note: A 2x2 configuration with an external HMC is no longer supported. Both HMCs must be internal to their SFs.
  3. The ship group contains two private network Ethernet cables that are 31 meters (101 feet) in length. If the storage facility you are installing will become part of an existing storage complex (2x2), will the cables reach from the location of the storage facility being installed to the proper storage facility in this storage complex?
    • Yes, go to step 5.
    • No, go to step 4.
  4. Do one of the following and then continue with step 5.
    • Have the customer select a new rack location that will allow the cables to reach.
    • Have the customer provide two Ethernet cables that are straight 4-pair UTP CAT 5E with RJ-45 jacks, and a maximum length of 100 meters (328 feet). One cable must be labeled as "Black" on both ends and the other must be labeled as "Gray". All private network cables are marked as Black or Gray to visually separate the redundant network cabling.
  5. Verify that the customer has two AC power sources for each rack in the storage facility being installed.

    For maximum fault tolerance, use two separate AC power sources.

    Note: The storage facility is designed for connection to an IT power distribution system. In an IT power distribution system, the neutral conductor is isolated from earth (ground) by an impedance with exposed conductive parts in the installation that is tied directly to earth.

    No service representative action is needed. Information is for compliance with International Electrotechnical Commission Standard 950 for the safety of information technology equipment and electrical business equipment.

  6. Verify the customer wall circuit breaker. The customer wall circuit breaker rating that protects each line cord depends on the voltage range as follows:
    • Low-voltage, three-phase installations (200 - 240 V) require wall circuit breakers that have a rating of 50 to 60 A. Do not exceed the wire rating of the facility.
    • High-voltage, three-phase installations (380 - 480 V) require wall circuit breakers that have a rating of 30 to 35 A. Do not exceed the wire rating of the facility.
  7. If the storage facility will be installed on a raised floor:
    1. Review the weight of each rack with the customer to verify that their raised floors have adequate support. An individual rack, fully configured can weigh a maximum of 2880 pounds (1307 kilograms). For details on the rack weights, refer to IBM® DS8870 Introduction and Planning Guide.
    2. To correctly cool a rack, place two floor tiles, that have holes for air flow, directly in the front of each rack.
    3. To allow cable entry, place floor tiles with appropriate cutouts under the rear tailgate.
    Note: Normal installation in raised floor environments assumes cable routing through floor cutouts and under the raised floor. For racks configured with overhead cable management (top exit), floor cutouts are not required in the following cases:
    • Rack 1, Rack 2:
      • Rack has feature 1400 (top exit bracket for fibre cable), AND
      • Rack has a top exit line cord feature (1070, 1071, 1095, 1096 or 1097), AND
      • Customer wants the PCIe and SPCN cables routed under the racks and on top of the raised floor
    • Rack 3, Rack 4:
      • Rack has a top exit line cord feature (1070, 1071, 1095, 1096 or 1097)
  8. If the storage facility will not be installed on a raised floor, ensure the customer will provide adequate air flow and temperature around the storage facility.
    Notes:
    • For information about the temperature requirements of the operating environment, see the IBM DS8870 Introduction and Planning Guide. The PDF is also available on the IBM DS8000® series Service Documents CDROM.
    • The rack cooling airflow enters through the front cover and exits through the rear cover. The bottom of the DS8000 is sealed.
  9. Verify that the customer has ordered, supplied, and routed the following cables to the storage facility being installed. Routing of the customer cables must not be billed against the installation. If the customer wants the service representative to route the cables, that activity must be coded or billed separately.
    1. Fibre-Channel host cables from the host to the storage facility host adapters.
    2. An Ethernet LAN signal cable. This cable is required to connect the management console to the customer LAN.
    3. A functional analog telephone line to the hardware management console (also referred to as HMC or management console) within 2.5 meters (8 feet) of the management console.
    4. AC service for the service provider laptop within 2.5 meters (8 feet) of the storage facility.
    5. AC service outlet for each component of an external management console.