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Storage administration

Terms related to data storage management, including definitions about enterprise storage and words and phrases about storage infrastructure, storage capacity and hierarchical storage management (HSM).

3.5 - HAR

  • 3.5" SSD (3.5 solid-state drive) - A 3.5 solid-state drive (SSD) is a data storage device designed for the 3.
  • 3D XPoint - 3D XPoint is memory storage technology jointly developed by Intel and Micron Technology Inc.
  • 3Vs (volume, variety and velocity) - The 3Vs (volume, variety and velocity) are three defining properties or dimensions of big data.
  • Amazon ElastiCache - Amazon ElastiCache is a fully managed caching service.
  • Amazon Simple Storage Service (Amazon S3) - Amazon Simple Storage Service (Amazon S3) is a scalable, high-speed, web-based cloud storage service.
  • application-aware storage - Application-aware storage is a storage system with built-in intelligence about relevant applications and their utilization patterns.
  • array-based replication - Array-based replication applies the functionality of data replication across one or more storage controllers, which eliminates the processing overhead from servers and makes it easier to copy large amounts of data.
  • AUFS (Advanced Multi-Layered Unification Filesystem) - Advanced multi-layered unification filesystem (AUFS) is a union filesystem sometimes used in platform-as-a-service environments to merge distinct directory hierarchies into a single directory.
  • automated storage tiering (AST) - Automated storage tiering (AST) is a storage software management feature that dynamically moves information between different disk types and RAID levels to meet space, performance and cost requirements.
  • AWS Import/Export - AWS Import/Export is a program that enables an IT team to move large amounts of data into and out of the Amazon Web Services public cloud with portable storage devices.
  • AWS Storage Gateway (Amazon Web Services Storage Gateway) - AWS Storage Gateway securely transfers application data between on-premises software and cloud-based storage to improve application scalability and help an enterprise save costs.
  • bad block - A bad block is an area of storage media that is no longer reliable for storing and retrieving data because it has been physically damaged or corrupted.
  • base address - A base address is a unique location in primary storage (or main memory) that serves as a reference point for other memory locations called absolute addresses.
  • bit rot - Bit rot is the slow deterioration in the performance and integrity of data stored on storage media.
  • block storage - Block storage is an approach to data storage in which each storage volume acts as an individual hard drive that is configured by the storage administrator.
  • brontobyte - A brontobyte is a measure of memory or data storage that is equal to 10 to the 27th power of bytes.
  • burn-in - Burn-in is a test in which a system or component is made to run for an extended period of time to detect problems.
  • Caringo Swarm - Swarm is software designed to store unstructured data on an object storage platform.
  • centralized backup - Centralized backup is a process that involves automatically replicating data from remote sites and sending it over a network to a main (centralized) location for storage.
  • Ceph - Ceph is open source software providing scalable object-, block- and file-based storage under a unified system.
  • Clonezilla - Clonezilla is a free open source disk cloning application based on Debian.
  • cloud archive - A cloud archive is storage as a service for long-term data retention.
  • cloud computing - Cloud computing is a general term for anything that involves delivering hosted services over the internet.
  • cloud disaster recovery (cloud DR) - Cloud disaster recovery (cloud DR) is a combination of strategies and services intended to back up data, applications and other resources to public cloud or dedicated service providers.
  • cloud encryption (cloud storage encryption) - Cloud encryption is a service offered by cloud storage providers whereby a customer's data is transformed using encryption algorithms into ciphertext and stored in the cloud.
  • cloud file sharing - Cloud file sharing is a method of allowing multiple users to access data within a public cloud, private cloud or hybrid cloud.
  • cloud file storage - Cloud file storage is a storage service that is delivered over the Internet, billed on a pay-per-use basis and has an architecture based on common file level protocols such as Server Message Block (SMB), Common Internet File System (CIFS) and Network File System (NFS).
  • cloud NAS (cloud network attached storage) - Cloud NAS (network attached storage) is remote storage that is accessed over the internet as if it is local.
  • cloud services - Cloud services is an umbrella term that may refer to a variety of resources provided over the internet, or to professional services that support the deployment of such cloud-based resources.
  • cloud SLA (cloud service-level agreement) - A cloud SLA (cloud service-level agreement) is an agreement between a cloud service provider and a customer that ensures a minimum level of service is maintained.
  • cloud storage - Cloud storage is a service model in which data is transmitted and stored on remote storage systems, where it is maintained, managed, backed up and made available to users over a network (typically the internet).
  • cloud storage API - A cloud storage API is an application program interface that connects a locally-based application to a cloud-based storage system, so that a user can send data to it and access and work with data stored in it.
  • cloud storage gateway - A cloud storage gateway is a hardware- or software-based appliance that serves as a bridge between local applications and remote cloud-based storage.
  • cloud storage infrastructure - Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or public cloud storage service.
  • cloud storage provider - A cloud storage provider, also known as a managed service provider (MSP), is a company that offers organizations and individuals the ability to place and retain data in an off-site storage system.
  • cloud storage service - A cloud storage service is a business that maintains and manages its customers' data and makes that data accessible over a network, usually the internet.
  • cloud-integrated storage (CIS) - Cloud-integrated storage (CIS) is a term that refers to a conventional storage-area network (SAN), network-attached storage (NAS) or unified storage system that tiers and/or caches data to cloud-based storage and treats the cloud storage as if it were part of the primary storage system.
  • clustered file system (CFS) - Clustered file systems are file systems that run on multiple storage servers and can be accessed and managed as a single system.
  • clustered network-attached storage (clustered NAS) - A clustered NAS system is a distributed file system that runs concurrently on multiple NAS nodes.
  • clustered storage - Clustered storage is the use of two or more storage servers working together to increase performance, capacity, or reliability.
  • COLD (Computer Output to Laser Disk) - COLD (Computer Output to Laser Disk) is a system for archiving data such as business records and reports to one or more optical disks in a compressed but easily retrievable format.
  • cold storage - Cold storage is a computer system or mode of operation designed for the retention of inactive data.
  • computational storage - Computational storage is an information technology (IT) architecture in which data is processed at the storage device level to reduce the amount of data that has to move between the storage plane and the compute plane.
  • computer room air conditioning unit (CRAC) - A computer room air conditioning (CRAC) unit is a device that monitors and maintains the temperature, air distribution and humidity in a network room or data center.
  • converged storage - Converged storage is the combination of storage and computing hardware and processes to speed delivery time, optimize application performance, and minimize power, cooling, and physical space requirements in virtualized and cloud-based environments.
  • copy data management (CDM) - Copy data management (CDM) is an approach to reducing storage consumption that involves eliminating the unnecessary duplication of production data.
  • CRUSH (Controlled Replication Under Scalable Hashing) - CRUSH (Controlled Replication Under Scalable Hashing) is a hash-based algorithm for calculating how and where to store and retrieve data in a distributed object –based storage cluster.
  • D2D2C (disk-to-disk-to-cloud) - D2D2C (disk-to-disk-to-cloud) is an approach to hybrid cloud backup that involves using local storage for staging data that will eventually be sent to a third-part cloud storage service provider.
  • dark storage - Dark storage is allocated but unused storage capacity.
  • data archiving - Data archiving migrates infrequently used data to low-cost, high-capacity archive storage for long-term retention.
  • data at rest - Data at rest is a term that is sometimes used to refer to all data in computer storage while excluding data that is traversing a network or temporarily residing in computer memory to be read or updated.
  • data breach - A data breach is a cyber attack in which sensitive, confidential or otherwise protected data has been accessed and/or disclosed in an unauthorized fashion.
  • data center as a service (DCaaS) - A data center as a service (DCaaS) provider will supply turnkey physical data center facilities and computing infrastructure (e.
  • data center bridging (DCB) - DCB is a suite of IEEE standards designed to enable lossless transport over Ethernet and a converged network for all data center applications.
  • data classification - Data classification is the process of organizing data into categories that make it is easy to retrieve, sort and store for future use.
  • Data Dynamics StorageX - Data Dynamics StorageX is a software suite that specializes in data migration and Microsoft Distributed File System management.
  • data lake - A data lake is a storage repository that holds a vast amount of raw data in its native format until it is needed for analytics applications.
  • data protection management (DPM) - Data protection management (DPM) comprises the administration, monitoring and management of backup processes to ensure backup tasks run on schedule and data is securely backed up and recoverable.
  • data reduction - Data reduction is the process of reducing the amount of capacity required to store data.
  • data reduction in primary storage (DRIPS) - Data reduction in primary storage (DRIPS) is the application of capacity optimization techniques for data that is in active use.
  • data retention policy - A data retention policy, or records retention policy, is an organization's established protocol for retaining information for operational or regulatory compliance needs.
  • DataCore SANsymphony-V - DataCore SANsymphony-V is a storage virtualization platform that pools capacity of heterogeneous storage hardware.
  • deep archive - A deep archive is a type of data archiving that refers to a storage location for data that will likely never be accessed again, but can't be deleted.
  • Dell EMC NetWorker - Dell EMC NetWorker is a backup software platform for the enterprise.
  • Dell EMC World - Dell EMC World is an annual event for Dell EMC customers that showcases new and emerging technologies in the virtualization, cloud and data storage market.
  • Dell EqualLogic - Dell EqualLogic storage-area network arrays provide varying capacities of hard disk drives and solid-state drives using iSCSI and SATA controllers.
  • DIMM (dual in-line memory module) - DIMM (dual in-line memory module) is a type of computer memory that is natively 64 bits, enabling fast data transfer.
  • disk backup or disk-based backup - Disk backup, or disk-based backup, is a data backup and recovery method that backs data up to hard disk storage.
  • disk image - A disk image is a copy of the entire contents of a storage device, such as a hard drive, DVD, or CD.
  • disk mirroring (RAID 1) - RAID 1 is one of the most common RAID levels and the most reliable.
  • DNA storage - DNA storage is the process of encoding and decoding binary data onto and from synthesized strands of DNA (deoxyribonucleic acid).
  • DRBD (Distributed Replicated Block Device) - DRBD (Distributed Replicated Block Device) is a Linux-based software component that facilitates the replacement of shared storage systems by networked mirroring.
  • DWPD (device/drive writes per day) - DWPD tells the customer how many times he can expect to overwrite the entire capacity of a solid state drive before it becomes unreliable.
  • eMMC (embedded MultiMediaCard) - An embedded MultiMediaCard (eMMC) is a small storage device made up of NAND flash memory and a simple storage controller.
  • encryption key management - Encryption key management is the administration of tasks involved with protecting, storing, backing up and organizing encryption keys.
  • enterprise cloud storage - Enterprise cloud storage is public cloud storage purchased for a large organization.
  • enterprise storage - Enterprise storage is a centralized repository for business information that provides common data management, protection and data sharing functions through connections to computer systems.
  • eventual consistency - Eventual consistency is a characteristic of distributed computing systems such that the value for a specific data item will, given enough time without further updates, be consistent each time it is accessed.
  • exbibyte (EiB) - An exbibyte (EiB) is a unit used to measure data capacity.
  • fan-out ratio - A fan-out ratio is the relationship in quantity between a single port on a storage device and the number of servers that are attached to it.
  • Fibre Channel adapter - A Fibre Channel (FC) adapter is a hardware component that provides connectivity from a server to a storage area network (SAN).
  • Fibre Channel director (FC director) - A Fibre Channel (FC) director is a modular, chassis-based, high port-count switch that connects servers, switches and storage in a dedicated FC storage area network (SAN).
  • Fibre Channel port names - Fibre Channel port names.
  • Fibre Channel switch (FC switch) - A Fibre Channel switch is a networking device that is compatible with the Fibre Channel (FC) protocol and designed for use in a dedicated storage area network (SAN).
  • file virtualization - File virtualization is the creation of an abstraction layer between file servers and the clients that access those file servers.
  • fixed data (permanent data, reference data, archival data, or fixed-content data) - Fixed data (sometimes referred to as permanent data) is data that is not, under normal circumstances, subject to change.
  • FLAPE - FLAPE (flash plus tape) is an approach to tiered storage that allows administrators to archive data as soon as it is written.
  • flat address space - 1. A flat address space is a set of addresses arranged on a single level.
  • floating gate transistor (FGT) - A floating gate transistor (FGT) is a complementary metal-oxide semiconductor (CMOS) technology capable of holding an electrical charge in a memory device that is used to store data.
  • geo-replication - Geo-replication is a type of data storage replication in which the same data is stored on servers in multiple geographic locations.
  • gigabyte (GB) - A gigabyte (GB) -- pronounced with two hard Gs -- is a unit of data storage capacity that is roughly equivalent to 1 billion bytes.
  • global namespace - Global namespace is a feature that provides a consolidated view into multiple Network File Systems (NFS), Common Internet File Systems (CIFS), network-attached storage (NAS) systems or file servers that are in different physical locations.
  • GlusterFS (Gluster File System) - GlusterFS (Gluster File System) is an open source distributed file system that can scale out in building-block fashion to store multiple petabytes of data.
  • Google Cloud Storage - Google Cloud Storage is an enterprise public cloud storage platform that can house large unstructured data sets.
  • Google Cloud Storage Coldline - Google Cloud Storage Coldline is a public cloud cold storage service from Google intended for archiving and disaster recovery.
  • green networking - Green networking is the practice of selecting energy-efficient networking technologies and products, and minimizing resource use whenever possible.
  • HA storage (high-availability storage) - High-availability storage (HA storage) is a storage system that is continuously operational or provides at least 99% uptime.
  • hardware RAID (hardware redundant array of independent disk) - Hardware RAID is a form of RAID where processing is done externally.
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