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Data Domain DD9800 System Installation and Storage Expansion Guide

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Connecting the HA interconnect

About this task

The HA interconnect consists of a 10 GbE I/O module in slot 11 of each node in the HA pair. This connection between the two nodes provides the standby node with the information it needs to failover if the active node suffers a failure, and maintain the connections to hosts and clients after the failover is complete.
NOTE
  • The interconnect IP address is automatically configured with the IPv6 prefix d:d:d:d:d:/80
  • If there is an IP conflict, set the registry key config.net.interconnect_ip6prefix.

Steps

  1. Refer to the diagram for the port connections.
    Figure 1. DD9800 HA interconnect
  2. Cable port 0 of the interconnect I/O module in node 0, slot 11 to port 0 of the interconnect I/O module in node 1, slot 11.
  3. Cable port 1 of the interconnect I/O module in node 0, slot 11 to port 1 of the interconnect I/O module in node 1, slot 11.
  4. Cable port 2 of the interconnect I/O module in node 0, slot 11 to port 2 of the interconnect I/O module in node 1, slot 11.
  5. Cable port 3 of the interconnect I/O module in node 0, slot 11 to port 3 of the interconnect I/O module in node 1, slot 11.

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