Cabling the HA interconnect (80xx systems in separate chassis)

To enable the HA interconnect between 80xx controller modules that reside in separate chassis, you must cable the QSFP InfiniBand ports on one I/O expansion module to the QSFP InfiniBand ports on the partner's I/O expansion module.

About this task

Because the 80xx storage controller modules do not include external HA interconnect ports, you must use the HA interconnect ports on the I/O expansion modules to deploy these controller models in separate chassis.

This procedure applies to 80xx systems, regardless of the type of attached disk shelves.

Steps

  1. Plug one end of the QSFP InfiniBand cable to the ib0a port on one I/O expansion module.
  2. Plug the other end of the QSFP InfiniBand cable to the ib0a port on the partner's I/O expansion module.
  3. Repeat the preceding steps to connect the ib0b ports.

    Do not cross-cable the HA interconnect ports; cable the local node ports only to the identical ports on the partner node.

    If the system detects a cross-cabled HA interconnect, the following message appears on the system console and in the event log (accessible using the event log show command):

    HA interconnect port <port> of this appliance seems to be connected to port <port> on the partner appliance.

Result

The nodes are connected to each other.

After you finish

Configure the system.