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Systems Network Architecture [1] (SNA) is IBM's proprietary networking architecture, created in 1974. [2] It is a complete protocol stack for interconnecting computers and their resources. SNA describes formats and protocols but, in itself, is not a piece of software.
IPVS: an advanced IP load balancing software implemented inside the Linux kernel. The IP Virtual Server code is merged into versions 2.4.x and newer of the Linux kernel mainline. [1] KTCPVS: implements application-level load balancing inside the Linux kernel, as of February 2011 still under development. [2]
Node management LIF interface can migrate with associated IP address across Ethernet ports of a single node and available only while ONTAP running on the node, usually located on e0M port of the node; Node management IP sometimes used by cluster admin to communicate with a node to cluster shell in rare cases where commands have to be issued ...
DRBD layers logical block devices (conventionally named /dev/drbdX, where X is the device minor number) over existing local block devices on participating cluster nodes. . Writes to the primary node are transferred to the lower-level block device and simultaneously propagated to the secondary nod
Network functions virtualization (NFV) [1] is a network architecture concept that leverages IT virtualization technologies to virtualize entire classes of network node functions into building blocks that may connect, or chain together, to create and deliver communication services.
LLT lies at the bottom of the architecture and acts as conduit between GAB and underlying network. It receives information from GAB and transmits across to intended participant nodes. While LLT module on one node interacts with every other node in the cluster, the communication is always 1:1 between individual nodes.
A Node is a compute instance (a blade, hypervisor, or VM) where service instances (workload) are deployed. The set of nodes belonging to the same communication subnet (no routing) comprise the logical Cluster. Every node in the cluster must run an execution environment for services, as well as OpenSAF services listed below:
A deployment diagram [1] "specifies constructs that can be used to define the execution architecture of systems and the assignment of software artifacts to system elements." [1] To describe a web site, for example, a deployment diagram would show what hardware components ("nodes") exist (e.g., a web server, an application server, and a database server), what software components ("artifacts ...