Cabling

This topic describes how to cable the metadata server engine and the RSA II.

Context

Steps

  1. Perform the following steps to cable the hardware:
    1. For each of the two power cords, connect the appropriate end of the power cord to a power supply and the opposite end to a properly wired and grounded electrical outlet.
    2. Connect one end of the two fibre channel cables to the HBA ports located in expansion slot 2, and connect the opposite end of each cable to the SAN through a switch. See Figure 3 for a cabling example.
    3. For redundancy, connect another fibre channel cable to the other HBA port in expansion slot 2, and to the other switch (or zone). This is optional.
      Note: The SAN File System user LUNs and SAN File System metadata LUNs do not share the same ESS 2105 Host Adapter ports. User LUNs should not be visible to the metadata servers in the SAN File System cluster. Metadata server LUNs should not be visible to SAN File System clients.
    4. Connect one end of the Ethernet cable to the integrated 10/100/1000 Ethernet port in the engine, and connect the opposite end to the Ethernet switch or hub. The example in Figure 3 shows a hub.
    5. An Advanced System Management (ASM) connector and USB cable are provided with the RSA II adapter.
      1. Connect the USB cable to a USB port on the engine and the other end to the RSA card.
      2. With an RJ-45 cable, connect one Ethernet connector on the RSA card to the Ethernet switch or hub that is provided as shown in Figure 3.
      3. Connect an ASM breakout cable (dongle) to the ASM connector on the RSA II card in each of the engines present in the SAN FS cluster. Connect the ASM breakout cable to the previous and next ASM breakout cables with RJ-45 cables. The first and last RJ-45 sockets in the chain must be terminated with the terminators provided. See Figure 1. and Figure 2.
      4. The 9-pin D-shell serial connector on the ASM connector is not used.
      Figure 1. Connecting the RSA adapters togetherConnecting the RSA adapters together
      Figure 2. RSA II adapter connectorsThis illustration shows RSA II adapter connectors.
      Figure 3. Two-node, two-switch, two-hub cabling exampleThis illustration show how to cable the metadata servers.
    6. Use cable clamps to secure the cables across the rear of the engine.
    7. Route the cables along the cable-management-arm channel, securing them with cable straps.
      Attention: Interconnect cables to the RS-485 connectors may be too short to route in the cable management arms. Use care when sliding out an engine to avoid damaging a cable or connector.
      Figure 4. Attaching the cable strapsThis figure illustrates how to attach the cable straps.
      1
      Cable straps
      2
      Cable-restraint bracket
    8. Secure the cable-restraint bracket to the slide rail, if not already done. Route the power and network cables through the cable-restraint bracket, allowing slack in all cables to avoid tension.
  2. For the master console, perform the following steps to cable the hardware:
    1. Connect one Ethernet adapter port to the internet by way of the corporate firewall.
    2. Connect the other Ethernet adapter port to the customer's intranet. This network includes the RSA II adapters, Metadata server, and SAN File System clients. The example Figure 3 shows an Ethernet hub.
    3. Attach the keyboard, display, and mouse to the KVM connectors on the master console.

Parent topic: Preparing the engine for installation

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IBM TotalStorage SAN File System v2.2