Several Common Network Topology Structures
· β˜• 3 min read
1. Fat-Tree In 1985, Charles E. Leiserson of MIT invented the Fat-Tree network. As shown in the figure below, a fat-tree network is a binary tree in which bandwidth gradually increases from the root nodes down to the leaf nodes. In August 2008, a group of computer scientists at UC San Diego published a scalable network architecture design that adopted a topology inspired by the fat-tree topology, achieving better scalability than previous hierarchical networks.

RDMA Technology
· β˜• 6 min read
1. What RDMA Is RDMA (Remote Direct Memory Access) is a technology created to solve the delay of server-side data processing in network transmission. With TCP/IP transmission, data passes through the network stack, then through the NIC to be sent; after the receiver receives it, the data is reassembled according to sequence numbers.

SR-IOV Technology
· β˜• 3 min read
1. What SR-IOV Technology Is SR-IOV (Single Root I/O Virtualization) is a virtualization technology that lets virtual machines and containers access physical hardware resources directly, improving I/O performance and reducing host CPU consumption. As shown in the figure above, SR-IOV partitions a single physical device (for example a network interface

InfiniBand Network and Common Commands
· β˜• 10 min read
1. InfiniBand Network InfiniBand (abbreviated IB) is a computer network communication standard for high-performance computing. It offers extremely high throughput and very low latency, and is used for data interconnection between computers. InfiniBand is also used as a direct or switched interconnect between servers and storage systems, as well as between storage systems themselves.

Using Fluid to Access OBS Storage and Performance Testing
· β˜• 2 min read
1. Jindo Mounting OBS Set the environment variables 1 2 3 4 export ENDPOINT=obs.cn-north-4.myhuaweicloud.com export BUCKET= export AK= export SK= Create the credentials 1 2 3 4 5 6 7 8 9 10 kubectl apply -f - <<EOF apiVersion: v1 kind: Secret metadata: name: myobssecret type: Opaque stringData: fs.obs.accessKeyId: ${AK} fs.