To set up the hardware

1. Install the hardware for Site A, using the manufacturers' instructions.

   • Install three network interface cards.

     • One for the public network.

     • Two are recommended for the private network.

     Use independent hubs or switches for each VCS communication network (GAB and LLT). GAB supports hub-based or switch network paths, or two-system clusters with direct network links.

     Note:

     To prevent lost heartbeats on the private networks and to prevent VCS from mistakenly declaring a system down, Veritas recommends disabling the Ethernet autonegotiation options on the private network adapters. Veritas also recommends removing TCP/IP from private NICs to lower system overhead. Contact the NIC manufacturer for details on this process.

   • Install the host adapter.

   • Install the switch and the storage array.

   • Verify that the system can access the storage devices.

2. Install the hardware in the same manner for Site B.
3. Make the necessary hardware connections to connect the two clusters together.

   • Connect corresponding cables between the three networking cards on the two sites.

   • Connect the two switches at the two sites through the storage interconnect. Test the connectivity between the two sites.

   • Test the IP addresses of all the network adapter cards in the cluster.

     Bring up the command window and type ping IPAddress, where the IPAddress is the corresponding network adapter in the other node.