Dell S4148U-ON EMC Networking OS10 Enterprise Edition Storage Overview - Page 14

6 Storage protocols 6.1 6.2 6.3 6.4 6.5 iSCSI Internet Small Computer System Interface, or iSCSI, is a transport layer protocol that uses the Transmission Control Protocol/Internet Protocol (TCP/IP) to transport Small Computer System Interface (SCSI) packets, enabling the use of Ethernet-based networking infrastructure as a SAN. The simple, yet powerful technology can help provide a high-speed, low-cost, long-distance storage solution for websites, service providers, enterprises, and other organizations. FC Fibre Channel (FC) was designed to extend the functionality of SCSI into point-to-point, loop, and switched topologies. Fibre Channel is an established low-latency, high-bandwidth, high-throughput protocol due to its deterministic nonblocking design. This high-link efficiency makes FC well-suited for storage traffic. FC is transparent to the applications, as the interface is provided by the server operating system or hypervisor. FC has low server requirements because its processing is offloaded from the server to the network adapter leaving more CPU cycles and memory for application services. FCoE Fiber Channel over Ethernet (FCoE) is a protocol that encapsulates FC frames over Ethernet networks. FCoE relies on SAN mapping without Ethernet forwarding dependence for robust and reliable SAN performance. FCoE uses 10 Gb Ethernet networks and fully adheres with FC protocol requirements. NFS Network File System (NFS) is a protocol regularly used on Linux and UNIX systems to access or share files between devices on a local area network (LAN). SMB In computer networking, Server Message Block (SMB), also known as Common Internet File System (CIFS), operates as an application-layer network protocol used to provide shared access to files, printers, and devices on a network. SMB protocol is a network file sharing protocol that consists of data packets in a set. Each set contains a request that a client sends or a response that the server sends. These packets can be broadly classified as follows: • Session control packets establish and discontinue a connection to shared server resources • File access packets Accesses and manipulates files and directories on the remote server • General message packets to send data to print queues, mail slots, and named pipes, to provide data about the status of print queues 14 Dell EMC Networking OS10 Enterprise Edition Storage Overview