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Failover: When a path is determined to be in a failed state, a path that is in a ready state will be made active. [10] Failback: When a failed path is determined to be active again, multipathd may choose to failback to the path as determined by the failback policy. [11] Failback Policy: Four options as set in the multipath.conf configuration file.
Multipath access to a RAID using Linux DM Multipath (Legend: "HBA" = Host bus adapter, "SAN" = Storage area network). In computer storage, multipath I/O is a fault-tolerance and performance-enhancement technique that defines more than one physical path between the CPU in a computer system and its mass-storage devices through the buses, controllers, switches, and bridge devices connecting them.
Reverse path filters are typically used to disable asymmetric routing where an IP application has a different incoming and outgoing routing path. Its intent is to prevent a packet entering one interface from leaving via the other interfaces. Reverse-path Filtering is a feature of the Linux Kernel. [3]
Path tie: The least-cost path to the root from network segment e goes through bridge 92. Therefore, the designated port for network segment e is the port that connects bridge 92 to network segment e. Root ports When multiple paths from a bridge are least-cost paths, the chosen path uses the neighbor bridge with the lower bridge ID.
Efficient Redundancy Redundancy Granularity Initial release year Memory requirements (GB) Alluxio (Virtual Distributed File System) Java Apache License 2.0 HDFS, FUSE, HTTP/REST, S3: hot standby No Replication [1] File [2] 2013 Ceph: C++ LGPL librados (C, C++, Python, Ruby), S3, Swift, FUSE: Yes Yes Pluggable erasure codes [3] Pool [4] 2010 1 ...
Multipath TCP (MPTCP) is an ongoing effort of the Internet Engineering Task Force's (IETF) Multipath TCP working group, that aims at allowing a Transmission Control Protocol (TCP) connection to use multiple paths to maximize throughput and increase redundancy.
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XDP (eXpress Data Path) is an eBPF-based high-performance data path used to send and receive network packets at high rates by bypassing most of the operating system networking stack. It is merged in the Linux kernel since version 4.8. [2] This implementation is licensed under GPL. Large technology firms including Amazon, Google and Intel ...