Kosmos file system

Fsv - the 3D File System Visualizer v. It represents all or part of a filesystem as a collection of blocks of varying sizes, each labeled with a filename, and Gfarm File System v. It can federate local disks of network-connected PCs and compute nodes in several It is intended to be used as the backend storage infrastructure for data intensive apps such as, search engines, data mining, grid computing Linux File-system defragmenter v. Linux NTFS file system support v.

All Time Favorites. Real Life Architectures. Support in Patreon. Start Here. All Posts. Amazon Store. Recent Posts. Sep 28 The team members have a good pedigree so there's a better than average chance this software will be worth considering. After you stop trying to turn KFS into "Kentucky Fried File System" in your mind, take a look at KFS' intriguing feature set: Incremental scalability: New chunkserver nodes can be added as storage needs increase; the system automatically adapts to the new nodes.

Availability: Replication is used to provide availability due to chunk server failures. Typically, files are replicated 3-way. Per file degree of replication: The degree of replication is configurable on a per file basis, with a max. Re-replication: Whenever the degree of replication for a file drops below the configured amount such as, due to an extended chunkserver outage , the metaserver forces the block to be re-replicated on the remaining chunk servers.

Re-replication is done in the background without overwhelming the system. Re-balancing: Periodically, the meta-server may rebalance the chunks amongst chunkservers. This is done to help with balancing disk space utilization amongst nodes. Data integrity: To handle disk corruptions to data blocks, data blocks are checksummed. Checksum verification is done on each read; whenever there is a checksum mismatch, re-replication is used to recover the corrupted chunk.

File writes: The system follows the standard model. When an application creates a file, the filename becomes part of the filesystem namespace. For performance, writes are cached at the KFS client library. Periodically, the cache is flushed and data is pushed out to the chunkservers. Also, applications can force data to be flushed to the chunkservers.

Published May 31, Author Rohan Pinto. Recent Blockchain Articles. September 13, June 16, June 10, May 21, Does Your Organization Need Blockchain? May 7,