Veritas Access Installation Guide
- Introducing Veritas Access
- Licensing in Veritas Access
- System requirements
- System requirements
- Linux requirements
- Linux requirements
- Network and firewall requirements
- Preparing to install Veritas Access
- Deploying virtual machines in VMware ESXi for Veritas Access installation
- Installing and configuring a cluster
- Installing the operating system on each node of the cluster
- Installing Veritas Access on the target cluster nodes
- About NIC bonding and NIC exclusion
- About VLAN Tagging
- Automating Veritas Access installation and configuration using response files
- Displaying and adding nodes to a cluster
- Upgrading Veritas Access and operating system
- Upgrading Veritas Access using a rolling upgrade
- Uninstalling Veritas Access
- Appendix A. Installation reference
- Appendix B. Troubleshooting the LTR upgrade
- Appendix C. Configuring the secure shell for communications
RDMA over InfiniBand networks in the Veritas Access clustering environment
Veritas Access uses Low Latency Transport (LLT) for data transfer between applications on nodes. LLT functions as a high-performance, low-latency replacement for the IP stack, and is used for all cluster communications. It distributes (load balances) internode communication across all available private network links. This distribution means that all cluster communications are evenly distributed across all private network links (maximum eight) for performance and fault resilience. If a link fails, traffic is redirected to the remaining links. LLT is also responsible for sending and receiving heartbeat traffic over network links. Using LLT data transfer over an RDMA network boosts performance of both file system data transfer and I/O transfer between nodes.
Network interface cards (NICs) and network switches that support RDMA are required to enable the faster application data transfer between nodes. You also need to configure the operating system and LLT for RDMA.