Adding a control enclosure to an existing system

To add a control enclosure to an existing system, you must first install it in the rack. Then, you must connect it to the system through a zone in the SAN or by using RDMA over Ethernet.

About this task

The management GUI requires a supported web browser. (See Checking your web browser settings for the management GUI.)
Note: When you add a control enclosure, do not use the initialization tool.

Procedure

To add a control enclosure to an existing system, complete the following steps.

  1. Install the support rails for the new enclosure.
  2. Install the new enclosure in the rack.
  3. Connect the node canisters to the storage area network or to a 25 Gbps (or faster) Ethernet.
    See Connecting Fibre Channel cables to a 10 Gbps iSCSI-FCoE 4-port host interface adapter, Connecting Fibre Channel cables to a Fibre Channel adapter in the enclosure, or Configuration details for using RDMA-capable Ethernet ports for node-to-node communications.
  4. Configure the zoning on the SAN switches.
    The correct zoning provides a way for the Fibre Channel or FCoE ports to connect to each other.If the configuration tool for the SAN switches does not provide the worldwide port names (WWPNs), use the service assistant to find them.

    If the new node canisters must communicate with other node canisters by using RDMA over Ethernet, then use the service assistant tool or the satask chnodeip command to set the node IP of each node that will be in the system.

  5. Start the management GUI on the existing system.
  6. In the management GUI, select Monitoring > System. On the System -- Overview page, select Add Enclosure. When a new enclosure is cabled correctly to the system, the Add Enclosure action automatically displays on the System -- Overview page. If this action does not appear, review the installation instructions to ensure the new enclosure is cabled correctly. You can also add a new enclosure by selecting Add Enclosure from the System Actions menu.
  7. Complete the instructions in the Add Enclosures wizard until the control enclosure is added to the system.
  8. If only two control enclosures are in the system, you must set up a quorum disk or application outside of the system. If the two control enclosures lose communication with each other, the quorum disk prevents both I/O groups from going offline. For more information, see Configuring quorum.