What is InfiniBand?
InfiniBand (IB) is a standard of computer networking communications which
used in high performance computing that features very low latency and high
throughput. It is use for data interconnect both among and within
computers and it also used as either a direct or switched interconnect between
servers, as well as an interconnect between storage systems. It is design to be
scalable and uses a switched fabric network topology.
InfiniBand |
In 2014, it was most commonly used interconnect in supercomputers. Mellanox
and Intel manufacture InfiniBand host bus adapters and network switches. In
February 2016, it was reports that Oracle Corporation had engineered its own
InfiniBands switch units and server adapter chips for use in its own product
lines and by third parties. Therefore Mellanox IB cards are available for
Solaris, FreeBSD, RHEL (Red Hat Enterprise Linux), SLES (SUSE Linux Enterprise
Server), Windows, HP-UX, VMware, and AIX. An interconnect, InfiniBands competes
with Ethernet, Fibre Channel, and Intel Omni-Path. The technology is promotes
by the InfiniBand Trade Association.
InfiniBand uses a switched fabric topology, as opposed to early
shared medium Ethernet. All
transmissions begin or end at a channel adapter. Therefore each processor
contains a host channel adapter (HCA) and each peripheral has a target channel
adapter (TCA). These adapters can also exchange information for security
or quality of service (QoS).
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