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grid file system wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 components 2 comparisons 3 features 4 framework 5 implementation 6 availability 7 challenges 8 examples 9 see also 10 references toggle the table of contents grid file system add languages add links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia this article needs more citations please help improve this article by adding citations to reliable sources unsourced material may be challenged and removed find sources grid file system news newspapers books scholar jstor august 2008 learn how and when to remove this message a grid file system is a computer file system whose goal is improved reliability and availability by taking advantage of many smaller file storage areas 1 components edit file systems contain up to three components file table fat table mft etc file data metadata user permissions etc a grid file system would have similar needs file table or search index file data metadata comparisons edit because file systems are designed to appear as a single disk for a single computer to manage entirely many new challenges arise in a grid scenario whereby any single disk within the grid should be capable of handling requests for any data contained in the grid features edit most file storage utilizes layers of redundancy to achieve a high level of data protection inability to lose data current means of redundancy include replication and parity checks such redundancy can be implemented via a raid array whereby multiple physical disks appear to a local computer as a single disk which may include data replication and or disk partitioning similarly a grid file system would consist of some level of redundancy either at the logical file level or at the block level possibly including some sort of parity check across the various disks present in the grid framework edit first and foremost a file table mechanism is necessary additionally the file table must include a mechanism for locating the target destination file within the grid secondly a mechanism for working with file data must exist this mechanism is responsible for making file data available to requests implementation edit with bittorrent technology a parallel can be drawn to a grid file system in that a torrent tracker and search engine would be the file table and the torrent applications transmitting the files would be the file data component an rss feed like mechanism could be utilized by file table nodes to indicate when new files are added to the table to instigate replication and other similar components a file system may incorporate similar technology distributed replication distributed data request fulfillment if both such systems file table and file data were capable of being addressed as a single entity i e using virtual nodes in a cluster then growth into such a system could be easily controlled simply by deciding which uses the grid member would be responsible file table and file lookups and or file data availability edit assuming there exists some method of managing data replication assigning quotas etc autonomously within the grid data could be configured for high availability regardless of loss or outage challenges edit the largest problem currently revolves around distributing data updates torrents support minimal hierarchy currently implemented either as metadata in the torrent tracker or strictly as ui and basic categorization updating multiple nodes concurrently assuming atomic transactions are required presents latency during updates and additions usually to the point of not being feasible additionally a grid network based file system breaks traditional tcp ip paradigms in that a file system generally low level ring 0 type of operations require complicated tcp ip implementations introducing layers of abstraction and complication to the process of creating such a grid file system examples edit examples of high available data include network load balancing carp splitting incoming requests to multiple computers usually configured identically or as one whole shared storage clustering sans a single disk one or more physical disks acting as a single logical disk is presented to multiple computers which split incoming requests this is usually used when more computing power is required than disk access data replication mirroring multiple computers may attempt to synchronize data usually point in time or snapshot based used more often for either reporting based on last snapshot or backup purposes data partitioning splitting data among multiple computers in databases data is often partitioned based on tables certain tables exist on certain computers or a table is split among multiple computers at certain break points general files tend to be partitioned either by category category based folders or location geographically separated see also edit distributed computing xtreemfs tahoe lafs list of volunteer computing projects interplanetary file system grid oriented storage grid computing gnunet glusterfs distributed hash table cooperative storage cloud clustered file system cephfs references edit maad soha coghlan brian quigley geoff ryan john kenny eamonn o callaghan david 2007 towards a complete grid filesystem functionality future generation computer systems 23 123 131 doi 10 1016 j future 2006 06 006 v t e computer files types binary file text file data file file format list of file formats list of file signatures magic number open file formats proprietary file formats metafile sidecar file sparse file swap file system file temporary file zero byte file properties filename 8 3 filename long filename filename mangling filename extension lists of filename extensions file attribute extended file attributes file size hidden file and hidden directory organisation directory folder ntfs links temporary folder directory structure file system filesystem hierarchy standard grid file system semantic file system path operations open close read write linking file descriptor hard link shortcut alias shadow symbolic link management backup file comparison file copying data compression file manager comparison of file managers file system fragmentation file system permissions file transfer file sharing file synchronization file verification retrieved from https en wikipedia org w index php title grid_file_system oldid 1277418706 category computer file systems hidden categories articles needing additional references from august 2008 all articles needing additional references this page was last edited on 24 february 2025 at 15 08 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents grid file system add languages add topic