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Data processing technique to eliminate duplicate copies of repeating data
In computing, data deduplication is a technique for eliminating duplicate copies of repeating data. Successful implementation of the technique can improve
Data_deduplication
Data deduplication storage system
Dell EMC Data Domain was Dell EMC’s data deduplication storage system. Development began with the founding of Data Domain, and continued since that company’s
Dell_EMC_Data_Domain
broken into conveniently-sized smaller "chunks". In data deduplication, data synchronization and remote data compression, Chunking is a process to split a file
Chunking_(computing)
Topics referred to by the same term
up deduplication in Wiktionary, the free dictionary. The term deduplication refers generally to eliminating duplicate or redundant information. Data deduplication
Deduplication
inaccuracy of data, overall quality of existing data, deduplication, and column segmentation. Such data problems can also be identified through a variety
Data_analysis
Storage of digital data readable by computers
Computer data storage Aperture (computer memory) Mass storage Memory leak Memory protection Page address register Stable storage Data deduplication Data proliferation
Computer_data_storage
Type of NTFS file system object
April 2019). "Introduction to Data Deduplication in Windows Server 2012". Microsoft Tech Community. "Data Deduplication interoperability". docs.microsoft
NTFS_reparse_point
Hardware company
added many features/functions such as zone level deduplication, adaptive deduplication, global deduplication, scale to 2.7PB full backups, 32 appliances in
ExaGrid
Recording of information in a storage medium
Data storage is the recording (storing) of information (data) in a storage medium. Handwriting, phonographic recording, magnetic tape, and optical discs
Data_storage
Kernel feature to share memory pages between multiple processes or virtualised guests
also known as kernel shared memory, memory merging, memory deduplication, and page deduplication is a kernel feature that makes it possible for a hypervisor
Kernel_same-page_merging
Stored data in computer systems
called deduplication. It can occur on a server before any data moves to backup media, sometimes referred to as source/client side deduplication. This approach
Backup
File system from DragonFly BSD
and checksums to deal with data corruption. HAMMER also supports data block deduplication, meaning that identical data blocks will be stored only once
HAMMER_(file_system)
Journaling file system for IRIX and Linux
copy-on-write (COW) data, data deduplication, reflink copies, online data and metadata scrubbing, highly accurate reporting of data loss or bad sectors
XFS
Type of computer data storage
environment may also provide policy management for features such as data deduplication, replication, thin provisioning, snapshots, copy-on-write clones,
Software-defined_storage
Digital identifier derived from the data by an algorithm
may be used for data deduplication purposes. This is also referred to as file fingerprinting, data fingerprinting, or structured data fingerprinting.
Fingerprint_(computing)
software. Single-instance storage is a simple variant of data deduplication. While data deduplication may work at a segment or sub-block level, single-instance
Single-instance_storage
Electronic non-volatile computer storage device
for general storage and transfer of data. NAND or NOR flash memory is also often used to store configuration data in digital products, a task previously
Flash_memory
Computer memory type used for data preservation
5D optical data storage is an experimental nanostructured glass for permanently recording digital data using a femtosecond laser writing process. It is
5D_optical_data_storage
Surplus computer data for error correction
makes the best possible usage of storage. Data maintenance Data deduplication Data scrubbing End-to-end data protection Redundancy (engineering) Redundancy
Data_redundancy
Process of encoding and decoding binary data to and from synthesized strands of DNA
DNA digital data storage is the process of encoding and decoding binary data to and from synthesized strands of DNA. While DNA as a storage medium has
DNA_digital_data_storage
File system from DragonFly BSD
to support enhanced clustering. HAMMER2 supports online and batched deduplication, snapshots, directory entry indexing, multiple mountable filesystem
HAMMER2
Open-source distributed vector database
introduces the following large scale operations, applicable for vectors: Data deduplication Clustering Anomaly detection Milvus can be deployed as an embedded
Milvus_(vector_database)
Type of hash function
chunking (CDC) or content-based chunking (CBC) is often used for data deduplication. The hash function used can be any rolling-hash algorithm. Some examples
Rolling_hash
Copy-on-write file system
require external scripts and software for utilization. Native data compression and deduplication, although the latter is largely handled in RAM and is memory
ZFS
Proprietary file system developed by Microsoft
Retrieved 2011-06-26. Rick Vanover (14 September 2011). "Windows Server 8 data deduplication". Archived from the original on 2016-07-18. Retrieved 2011-12-02.
NTFS
American technology company
data deduplication technology, providing typical data reduction ratios of 15:1 or 93%. The company offers both target and source-based deduplication as
Quantum_Corporation
Copy-on-write file system
between snapshots to a binary stream) Incremental backup Out-of-band data deduplication (requires userspace tools) Ability to handle swap files and swap partitions
Btrfs
Proprietary file system developed by Microsoft
automated error-correction is only supported on mirrored spaces. Data deduplication was missing in early versions of ReFS. It was implemented in v3.2
ReFS
Type of computer memory
is a type of random-access semiconductor memory that stores each bit of data in a memory cell. A DRAM memory cell usually consists of a microscopic capacitor
Dynamic_random-access_memory
Internet hosting service for user files
sharing. Since secret key encryption results in unique files, it makes data deduplication impossible and therefore may use more storage space. Convergent encryption
File-hosting_service
security of their files. At the heart of the complaint was the policy of data deduplication, where the system checks if a file has been uploaded before by any
Criticism_of_Dropbox
Free and open-source backup software
services. Notable features include: client-side encryption; deduplication of backup data; incremental backup snapshots; repository checking and repair
Restic
Software library for similarity search
without changing the measured distances Principal component analysis Data deduplication, which is especially useful for image datasets. FAISS has a standalone
FAISS
on ZFS, originally developed by Sun Microsystems, with proprietary data deduplication features added by GreenBytes and subsequently made proprietary for
ZFS+
Computer data storage server
(PBBA) is a kind of NAS intended for storing backup data. PBBAs typically include data deduplication, compression, RAID 6 or other redundant hardware components
Network-attached_storage
Combining data from multiple sources
Data integration is the process of combining, sharing, or synchronizing data from multiple sources to provide users with a unified view. There are a wide
Data_integration
Open-source implementation of ZFS file system
original ZFS, the implementation supports features like data compression, data deduplication, copy-on-write clones, snapshots, RAID-Z, and virtual devices
OpenZFS
Read-only file system for Linux
Linux 5.13. Direct I/O, Direct Access (DAX) support, chunk-based data deduplication for uncompressed files since Linux 5.15. Multiple device support for
EROFS
Linux distribution for backup of virtual machines, containers, and physical hosts
Server is written mostly in Rust and implements data deduplication to reduce the storage space needed. Data is split into chunks. Development of Proxmox
Proxmox_Backup_Server
Form of non-volatile memory used in computers and other electronic devices
form of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of
Read-only_memory
Type of computer memory
Low-Power Double Data Rate (LPDDR) is a type of synchronous dynamic random-access memory (SDRAM) designed to use less power than conventional memory. It
LPDDR
Data storage technologies that use magnetic tape
Magnetic-tape data storage is a system for storing digital information on magnetic tape using digital recording. Commercial magnetic tape products used for data storage
Magnetic-tape_data_storage
Form of computer data storage
any order, typically used to store working data and machine code. A random-access memory device allows data items to be read or written in almost the same
Random-access_memory
Information technology company
with incremental backups and image-based replication, with built-in data deduplication and compression. Veeam Backup & Replication started supporting Microsoft
Veeam
US data storage company
2018 with the $25 million purchase of a data deduplication software company called StorReduce, a data deduplication software company. In April 2019, the
Everpure
Interface to device driver that appears in filesystem
system resources that have no connection with any actual device, such as data sinks and random number generators. There are two general kinds of device
Device_file
Data storage provider
2014, Hitachi Data Systems acquired Sepaton, a provider of computer appliances using data deduplication. On May 31, 2015, Hitachi Data Systems acquired
Hitachi_Data_Systems
Topics referred to by the same term
compatibility issues with legacy systems Data redundancy, either wanted or unwanted (in which case one resorts to data deduplication) Content copying through cut
Duplication
Metric that measures the distance between two strings of text
analysis, evidence-based machine learning, database data deduplication, data mining, incremental search, data integration, malware detection, and semantic knowledge
String_metric
Repeated fragment of computer source code
but is generally a bad choice Data deduplication – Data processing technique to eliminate duplicate copies of repeating data Don't repeat yourself – Principle
Duplicate_code
Early form of read-only memory
Corporation in the 1950s, as it was a popular technology for program and data storage in that era. It was later used in the 1960s by early NASA Mars space
Core_rope_memory
Compact encoding of digital data
various deduplication and difference-coding techniques are applied that help decorrelate data and describe new data based on already transmitted data. Then
Data_compression
NEC HYDRAstor is a disk-based grid storage system with data deduplication for backups and archiving, developed by NEC Corporation. A HYDRAstor storage
NEC_HYDRAstor
Peer-to-peer web-based torrent client
WebTorrent implements the BitTorrent protocol using WebRTC for peer-to-peer data transfer, allowing users to download and stream torrents without requiring
WebTorrent
American open source software company
Acquires Permabit Assets, Eases Barriers to Cloud Portability with Data Deduplication Technology". Red Hat. July 31, 2017. "Red Hat to Acquire CoreOS, Expanding
Red_Hat
Manipulation of data before it is analyzed
Data preprocessing can refer to manipulation, filtration or augmentation of data before it is analyzed, and is often an important step in the data mining
Data_preprocessing
Backup software
Microsoft Exchange Server, DB2, and Teradata. Quest Software offers data deduplication, and protection for NAS filers (NDMP). NetVault Backup is based on
NetVault_Backup
Australian computer scientist and entrepreneur
entrepreneur who has made significant contributions to data compression and data deduplication technologies. He is best known as the inventor of the US
Ross_Williams
Clustered file system
files ~130,690 (VMFS5) Features Transparent compression No Transparent encryption No Data deduplication No Other Supported operating systems VMware ESX
VMware_VMFS
System or list for multiple mail recipients
legitimate list holders provide their customers with listwashing and data deduplication service regularly for no charge or a small fee.[citation needed] CAN-SPAM
Mailing_list
Type of computer memory
Double data rate synchronous dynamic random-access memory (DDR SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) widely used in computers
DDR_SDRAM
Copy-on-write file system developed by Apple
copies of the same file as clones of the other, or for other types of data deduplication. The feature is automatically available when a user copies any files
Apple_File_System
stored on the system, technologies such as deduplication and compression may store data at a greater than 1-to-1 data size-to-space consumed ratio, and efficiency
Storage_efficiency
Free and open-source operating system
supports configurable file system history, snapshots, checksumming, data deduplication and other features typical for file systems of its kind. HAMMER2,
DragonFly_BSD
Data recording made of plastic film
important to enable transferring data. Tape data storage is now used more for system backup, data archive and data exchange. The low cost of tape has
Magnetic_tape
Electro-mechanical data storage device
fixed disk is an electro-mechanical computer data storage device that stores and retrieves digital data using magnetic storage with one or more rigid
Hard_disk_drive
Use of paper as computer memory
Paper data storage refers to the use of paper as a data storage device. This includes writing, illustrating, and the use of data that can be interpreted
Paper_data_storage
2021 video game
3—including the data for the first two games in the trilogy—to 60-70 GB, as compared to Hitman 2's 150 GB size. Engine improvements, data deduplication and lossless
Hitman_3
Method to store and retrieve computer data using optics
Optical storage is a class of data storage systems that use light to read or write data to an underlying optical media. Although a number of optical formats
Optical_storage
Computer network with multiple nodes to store information
A distributed data store is a computer network where information is stored on more than one node, often in a replicated fashion. It is usually specifically
Distributed_data_store
Practice for controlling corporate data
through deduplication of the master data as part of the merger. Over time, as further mergers and acquisitions occur, the problem can multiply. Data reconciliation
Master_data_management
Deduplicating backup program
the internal workings. It uses a rolling hash to implement data deduplication for all data in single repository. Compression defaults to lz4, encryption
Borg_(backup_software)
Type of memory used on processors that require high transfer rate memory
CK_t and CK_c. Each channel interface maintained a 128‑bit data bus operating at this double data rate (DDR). HBM1 supported transfer rates of 1 GT/s per
High_Bandwidth_Memory
Computer storage device with no moving parts
type of solid-state storage device that uses integrated circuits to store data persistently. It is sometimes called semiconductor storage device, solid-state
Solid-state_drive
Computer memory that does not lose its contents after being turned off
constant power in order to retain data. Non-volatile memory typically refers to storage in memory chips, which store data in floating-gate memory cells consisting
Non-volatile_memory
Open source command line archiver for Windows and Linux
previous update. It compresses using deduplication and several algorithms (LZ77, BWT, and context mixing) depending on the data type and the selected compression
ZPAQ
Storage operating system
consist of links of data blocks and checksums, for those data blocks that have been handled by the deduplication process. Each deduplication database is located
ONTAP
Replaceable device used for the distribution and storage of video games
instruments. ROM cartridges allow users to rapidly load and access programs and data alongside a floppy drive in a home computer; in a video game console, the
ROM_cartridge
Magnetic tape data storage technology
the LTO Ultrium format, is a magnetic tape data storage technology used for backup, data archiving, and data transfer. It was originally developed in the
Linear_Tape-Open
Computer science problem
may be more than one longest common substring. Applications include data deduplication and plagiarism detection. Unlike the longest common subsequence problem
Longest_common_substring
Backup and disaster recovery software
size and data traffic with built-in data deduplication and compression. There is support for deduplicating storage systems such as EMC Data Domain, ExaGrid
Veeam_Backup_&_Replication
Computer storage business (1986–2016)
Internosis". CNET. Connor, Deni (November 1, 2006). "EMC acquires data deduplication vendor Avamar". NetworkWorld. Pariseau, Beth (April 8, 2008). "EMC
EMC_Corporation
Memory card format
higher clock speeds (26 MHz and 52 MHz alongside the normal 20 MHz) and wider data buses (8‑bit alongside the previous 1- and 4‑bit), which combined to enable
MultiMediaCard
Data collection system
Data localization or data residency law requires data about a nation's citizens or residents to be collected, processed, and/or stored inside the country
Data_localization
to add data deduplication to hardware devices or software applications that benefit from sharing duplicate chunks. Albireo VDO – a drop-in data efficiency
Permabit
Data storage device
A USB flash drive (also known as a thumb drive) is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive
USB_flash_drive
quantification. Finding unique elements in a sequence or list requires data deduplication. Contrast singleton. user Is a person who utilizes a computer or network
Glossary_of_computer_science
Task of finding records in a data set that refer to same entity across different sources
matching", "duplicate detection", "deduplication", "record matching", "(reference) reconciliation", "object identification", "data/information integration" and
Record_linkage
Removable disk storage medium
(130 mm) and then the 3½-inch (90 mm) became a ubiquitous form of data storage and data transfer into the first years of the 21st century. By the end of
Floppy_disk
Encryption method
the provider having access to the encryption keys. The combination of deduplication and convergent encryption was described in a backup system patent filed
Convergent_encryption
Journaling file system for Linux
block allocation until data is flushed to disk; in contrast, some file systems allocate blocks immediately, even when the data goes into a write cache
Ext4
Operation of checking the integrity of file
file is not detected by a CRC comparison.[citation needed] Checksum Data deduplication "Checksum". NIST. "NIST's policy on hash functions" Archived 2011-06-09
File_verification
American business services company
with storage-based and in-flight AES-256 encryption, compression, data deduplication, and ransomware detection. The technology supports Bare-Metal restore
Unitrends
Flat, usually circular disc that encodes binary data
to the outermost track. The data are stored on the disc with a laser or stamping machine, and can be accessed when the data path is illuminated with a
Optical_disc
Machine learning model for speech
identification and matching with transcripts, fuzzy deduplication, and deduplication with evaluation datasets to avoid data contamination. Speechless segments were
Whisper (speech recognition system)
Whisper_(speech_recognition_system)
Backup and recovery software from Arctera
Integrated Data Deduplication: Integrated block-level data deduplication Client, server-side, or OST appliance deduplication Client deduplication supported
Backup_Exec
Data storage device
semiconductor device used for digital data storage, such as computer memory. It typically refers to devices in which data is stored within metal–oxide–semiconductor
Semiconductor_memory
snapshots and off-line data deduplication. LSFS is a log-structured file system with writable snapshots and inline data deduplication created by StarWind
List of log-structured file systems
List_of_log-structured_file_systems
Component that stores information
stores information, such as data and programs, for immediate use in the computer; instructions fetched by the computer, and data fetched and stored by those
Computer_memory
Approach to data management
(VPFS) configuration parameters | Managing NetBackup services from the deduplication shell | Accessing NetBackup WORM storage server instances for management
Data_virtualization
DATA DEDUPLICATION
DATA DEDUPLICATION
Male
Irish
 From Irish Gaelic Mac Dara, DARA means "son of oak." Compare with other forms of Dara.
Male
Hebrew
(דֶּרַע) Hebrew name DARA means "the arm." In the bible, this is the name of a son of Zerah. Compare with other forms of Dara.
Female
Finnish
Variant form of Finnish Aada, AATA means "noble."
Female
Finnish
 Short form of Finnish Katariina, KATA means "pure." Compare with other forms of Kata.
Male
Turkish
Turkish name ATA means "ancestor."
Male
Iranian/Persian
 Short form of Persian Dârayavahush, DARA means "possesses a lot, wealthy." Compare with other forms of Dara.
Female
Hungarian
 Short form of Hungarian Katalin, KATA means "pure." Compare with other forms of Kata.
Male
Irish
Irish Gaelic name MAC DARA means "son of oak." This is the name of a patron saint and is still common in Ireland, especially in Connemara.
Female
Russian
 Short form of Russian Yekaterina, KATA means "pure." Compare with other forms of Kata.
Girl/Female
Hindu
A creeper
Male
Hebrew
Variant spelling of Hebrew Dathan, DATAN means "belonging to a fountain."
Female
Hebrew
(×“Ö¼Ö¸× Ö¸×”) Feminine form of Hebrew Dan, DANA means "judge." Compare with other forms of Dana.
Female
English
 English surname transferred to unisex forename use, possibly DANA means "from Denmark." Compare with other forms of Dana.
Female
English
 Middle English name DARA means "brave, daring." Compare with another form of Dara.
Female
Polish
 Variant spelling of Polish Dyta, DITA means "rich battle." Compare with another form of Dita.
Male
English
English surname transferred to unisex forename use, possibly DANA means "from Denmark."
Female
Polish
Short form of Polish Edyta, DYTA means "rich battle."
Female
Hebrew
(דִּיתָה) Pet form of Hebrew Yehuwdiyth, DITA means "Jewess" or "praised." Compare with another form of Dita.
Female
Slavic
 Short form of Slavic Bogdana, DANA means "gift from God." Compare with other forms of Dana.
Female
Hindi/Indian
(लता) Hindi name derived from a plant name, from the Sanskrit word lata, LATA means "creeper," in reference to a creeping plant.
DATA DEDUPLICATION
DATA DEDUPLICATION
Boy/Male
British, English
Holy Well
Boy/Male
Tamil
Simanta | ஸீமாஂநதாÂ
Parting line of hair
Boy/Male
British, English
Lives at the Hare's Lake
Girl/Female
British, English, Greek
Strange; Foreign; Diminutive of Barbara
Girl/Female
American, Australian
Fertile Plain
Boy/Male
Tamil
Heart, Love
Girl/Female
Hindu, Indian, Kashmiri, Rajasthani, Sindhi
Goddess Lakshmi Representing Success
Boy/Male
Latin Hungarian
Conqueror.
Boy/Male
Hebrew
Son of Adam: Man of the red earth.
Boy/Male
American, Australian, British, Chinese, Danish, English, French, German, Italian, Latin, Portuguese, Spanish, Swiss, Teutonic
Bright with Fame; Wide Fame; Spanish Form of Robert Shining Fame
DATA DEDUPLICATION
DATA DEDUPLICATION
DATA DEDUPLICATION
DATA DEDUPLICATION
DATA DEDUPLICATION
v. i.
To have beginning; to begin; to be dated or reckoned; -- with from.
n. pl.
See Datum.
n.
The fruit of the date palm; also, the date palm itself.
a.
Without date; having no fixed time.
n.
Death; decease; the date of one's death.
a.
Erroneous in date; containing an anachronism.
n.
A New Zealand forest tree (Metrosideros robusta), also, its hard dark red wood, used by the Maoris for paddles and war clubs.
n.
Prior date; a date antecedent to another which is the actual date.
a.
Being out of date; antiquated.
v. t.
To date erroneously.
n.
The point of time at which a transaction or event takes place, or is appointed to take place; a given point of time; epoch; as, the date of a battle.
v. t.
To note the time of writing or executing; to express in an instrument the time of its execution; as, to date a letter, a bond, a deed, or a charter.
n.
That addition to a writing, inscription, coin, etc., which specifies the time (as day, month, and year) when the writing or inscription was given, or executed, or made; as, the date of a letter, of a will, of a deed, of a coin. etc.
n.
Given or assigned length of life; dyration.
p. pr. & vb. n.
of Date
imp. & p. p.
of Date
pl.
of Datum
n.
Assigned end; conclusion.
v. t.
To note or fix the time of, as of an event; to give the date of; as, to date the building of the pyramids.