About: Venti

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Venti is a network storage system that permanently stores data blocks. A 160-bit SHA-1 hash of the data (called score by Venti) acts as the address of the data. This enforces a write-once policy since no other data block can be found with the same address: the addresses of multiple writes of the same data are identical, so duplicate data is easily identified and the data block is stored only once. Data blocks cannot be removed, making it ideal for permanent or backup storage. Venti is typically used with Fossil to provide a file system with permanent snapshots.

Attributes	Values
rdfs:label	Venti (Speichertechnologie) (de) Venti (en)
rdfs:comment	Venti ist ein Netzwerk-Speicher-System, das Datenblöcke permanent speichert. Der 160-bit SHA-1-Hashcode des Blocks (Score genannt) dient zur Adressierung der Daten. Damit wird sichergestellt, dass gleiche Datenblöcke nur einmal gespeichert werden, auch wenn sie mehrfach geschrieben werden, da gleiche Blöcke auch die gleiche Adresse erhalten. Jedoch können Blöcke nicht wieder entfernt werden. Damit eignet sich Venti für ewige Archive und Backups. Venti wird zumeist mit dem Archivprogrammen vac und vtstore, oder auch mit Fossil – einem Dateisystem, das permanente Snapshots bietet – verwendet. (de) Venti is a network storage system that permanently stores data blocks. A 160-bit SHA-1 hash of the data (called score by Venti) acts as the address of the data. This enforces a write-once policy since no other data block can be found with the same address: the addresses of multiple writes of the same data are identical, so duplicate data is easily identified and the data block is stored only once. Data blocks cannot be removed, making it ideal for permanent or backup storage. Venti is typically used with Fossil to provide a file system with permanent snapshots. (en)
dcterms:subject	Plan 9 from Bell Labs
Wikipage page ID	2987342 (xsd:integer)
Wikipage revision ID	1120227439 (xsd:integer)
Link from a Wikipage to another Wikipage	Bell Labs User space Compact disc SHA-1 Go (programming language) Magnetic tape Plan 9 from User Space Plan 9 from Bell Labs Hash collision Hash tree (persistent data structure) DVD Fossil (file system) Redundant array of independent disks Remote procedure call Hash table Access time Pigeonhole principle Plan 9 from Bell Labs Inferno (operating system) Information theory Bucket (computing) Seek time Transport Control Protocol dbr:Sean_Dorward Fragmentation (computer) Hard drive Daemon (computer software) dbr:Russ_Cox
Link from a Wikipage to an external page	http://doc.cat-v.org/plan_9/4th_edition/papers/venti/ http://code.google.com/p/govt/ http://www.vitanuova.com/inferno/man/2/venti.html http://man.cat-v.org/p9p/1/venti http://man.cat-v.org/p9p/7/venti http://man.cat-v.org/p9p/8/venti
sameAs	Venti Venti Venti Venti
dbp:wikiPageUsesTemplate	dbt:About dbt:More_citations_needed dbt:Reflist dbt:When
date	December 2019 (en)
reason	not clear whether the SHAttered attack contradicts this sentence (en)
has abstract	Venti ist ein Netzwerk-Speicher-System, das Datenblöcke permanent speichert. Der 160-bit SHA-1-Hashcode des Blocks (Score genannt) dient zur Adressierung der Daten. Damit wird sichergestellt, dass gleiche Datenblöcke nur einmal gespeichert werden, auch wenn sie mehrfach geschrieben werden, da gleiche Blöcke auch die gleiche Adresse erhalten. Jedoch können Blöcke nicht wieder entfernt werden. Damit eignet sich Venti für ewige Archive und Backups. Venti wird zumeist mit dem Archivprogrammen vac und vtstore, oder auch mit Fossil – einem Dateisystem, das permanente Snapshots bietet – verwendet. (de) Venti is a network storage system that permanently stores data blocks. A 160-bit SHA-1 hash of the data (called score by Venti) acts as the address of the data. This enforces a write-once policy since no other data block can be found with the same address: the addresses of multiple writes of the same data are identical, so duplicate data is easily identified and the data block is stored only once. Data blocks cannot be removed, making it ideal for permanent or backup storage. Venti is typically used with Fossil to provide a file system with permanent snapshots. (en)
gold:hypernym	System
prov:wasDerivedFrom	wikipedia-en:Venti?oldid=1120227439&ns=0
page length (characters) of wiki page	8179 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Venti
is Link from a Wikipage to another Wikipage of	List of file systems Bloom filter Comparison of open-source operating systems Comparison of operating systems Content-addressable storage Plan 9 from User Space Fossil (file system) List of Plan 9 applications Plan 9 from Bell Labs Versioning file system
is foaf:primaryTopic of	wikipedia-en:Venti

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