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• erasure coding (EC)

  Erasure coding (EC) is a method of data protection in which data is broken into fragments, expanded and encoded with redundant data pieces, and stored across a set of different locations or storage media. Continue Reading

• Microsoft delivers 51 fixes for June Patch Tuesday

  A critical remote-code execution flaw in Windows and a DoS vulnerability affecting DNS in Windows Server top the list of patching priorities for admins. Continue Reading

• 3D XPoint

  3D XPoint is memory storage technology that was jointly developed by Intel and Micron Technology. The two vendors intended for the technology to fill a gap in the storage market between dynamic RAM (DRAM) and NAND flash. Continue Reading

• hybrid hard drive (HHD)

  A hybrid hard drive (HHD), sometimes known as a solid-state hybrid drive (SSHD), is a mass storage device that combines a conventional hard disk drive (HDD) and a NAND flash memory module. Continue Reading

• ARP vs. RARP: What's the difference?

  Network devices use ARP to map IP addresses to MAC addresses. RARP, which is less common, accomplishes the reverse and enables network devices to map MAC addresses to IP addresses. Continue Reading

• Definitions to Get Started

  • What is an API (application programming interface)?
  • What is a SAN? Ultimate storage area network guide
  • What is a data retention policy?
  • What is multi-access edge computing? Benefits and use cases

  • What is 5G?
  • What is 6G? Overview of 6G networks & technology
  • phase-locked loop (PLL)
  • What is millimeter wave (mmWave)?

  View All Definitions

• IT incident management

  IT incident management is a component of IT service management (ITSM) that aims to rapidly restore services to normal following an incident while minimizing adverse effects on the business.Continue Reading

• software

  Software is a set of instructions, data or programs used to operate computers and execute specific tasks.Continue Reading

• SELinux (Security-Enhanced Linux)

  SELinux, or Security-Enhanced Linux, is a part of the Linux kernel that acts as a protective agent to the operating system.Continue Reading

• SUSE Linux Enterprise Server (SLES)

  SUSE Linux Enterprise Server (SLES) is a Linux-based server operating system created and maintained by the German-based organization, SUSE.Continue Reading

• virtualization

  Virtualization is the creation of a virtual version of an actual piece of technology, such as an operating system (OS), a server, a storage device or a network resource.Continue Reading

• How to use the Windows Server Backup tool

  In this tutorial you'll learn how to install, schedule and test Windows Server Backup utility. Readers will also find out which environments the tool is best suited to.Continue Reading

• software-defined storage (SDS)

  Software-defined storage (SDS) is a software program that manages data storage resources and functionality and has no dependencies on the underlying physical storage hardware.Continue Reading

• NBASE-T Ethernet

  NBASE-T Ethernet is an IEEE standard and Ethernet-signaling technology that enables existing twisted-pair copper cabling to exceed the cable's specified limit of 1 gigabit per second (Gbps) for distances of up to 100 meters.Continue Reading

• CQRS (command query responsibility segregation)

  CQRS (command query responsibility segregation) is a programming design and architectural pattern that treats retrieving data and changing data differently.Continue Reading

• Understanding and implementing the software testing pyramid

  Frameworks such as the software testing pyramid help developers implement Agile core values. Learn how the testing pyramid helps teams prioritize test type frequency.Continue Reading

• Advanced Host Controller Interface (AHCI)

  Advanced Host Controller Interface, or AHCI, is a technical standard for an interface that enables software to communicate with Serial ATA (SATA) devices.Continue Reading

• Common Internet File System (CIFS)

  CIFS (Common Internet File System) is a protocol that gained popularity around the year 2000, as vendors worked to establish an Internet Protocol-based file-sharing protocol.Continue Reading

• LTO-8 (Linear Tape-Open 8)

  LTO-8, or Linear Tape-Open 8, is a tape format from the Linear Tape-Open Consortium released in late 2017. It succeeded the LTO-7 version, which launched in 2015.Continue Reading

• SAS SSD (Serial-Attached SCSI solid-state drive)

  A SAS SSD (Serial-Attached SCSI solid-state drive) is a NAND flash memory-based storage or caching device designed to fit in the same slot as a hard disk drive (HDD) and use the SAS interface to connect to the host computer.Continue Reading

• bare-metal hypervisor (Type 1 hypervisor)

  A bare-metal hypervisor, also known as a Type 1 hypervisor, is virtualization software that has been installed directly onto the computing hardware.Continue Reading

• Master these 5 common Kubernetes troubleshooting tasks

  Not enough nodes? Have some noisy neighbors? Plenty of things can cause containers to underperform. Here's how to chase down and resolve three common Kubernetes problems.Continue Reading

• impact mapping

  Impact mapping is a visual planning technique that aligns project processes with business objectives.Continue Reading

• TLC flash (triple-level cell flash)

  TLC flash (triple-level cell flash) is a type of NAND flash memory that stores three bits of data per cell.Continue Reading

• parallel file system

  A parallel file system is a software component designed to store data across multiple networked servers.Continue Reading

• Zabbix

  Zabbix is an open source monitoring software tool for diverse IT components, including networks, servers, virtual machines (VMs) and cloud services.Continue Reading

• Waterfall vs. Agile methodology: Differences and examples

  Teams have a choice in the way they approach a new dev project. Learn about two main schools of thought -- Agile and Waterfall -- and why Agile is the prevailing methodology today.Continue Reading

• Secure Kubernetes with this Kubescape tutorial

  Kubescape can help discover misconfigurations in a Kubernetes cluster by scanning various resource types. Learn how to use the platform to scan clusters.Continue Reading

• A primer on AWS tagging with best practices

  Consistency and standardization are critical to a successful AWS tagging strategy. Consider these best practices to organize and optimize your organization's workloads.Continue Reading

• Amazon Resource Name (ARN)

  An Amazon Resource Name is a file naming convention used to identify a particular resource in the Amazon Web Services (AWS) public cloud.Continue Reading

• How to create an engaging README file

  Every developer must learn the art of creating a README file to explain critical information about their software projects to internal stakeholders and customers.Continue Reading

• Windows Server Client Access License (CAL)

  A Windows Server Client Access License (CAL) is a license that gives a user or device the right to access services, such as printing or access to a file share, from a server running the Windows Server operating system (OS).Continue Reading

• An overview of storage encryption for enterprises

  The constantly increasing data volumes and locations -- plus the number of security threats -- should push enterprise storage strategies to include strong encryption.Continue Reading

• 12 core Azure networking services you need to know

  Network connectivity can make or break a cloud deployment. Discover the basics of Azure network services with this list of key offerings and terms.Continue Reading

• iSCSI (Internet Small Computer System Interface)

  ISCSI is a transport layer protocol that describes how Small Computer System Interface (SCSI) packets should be transported over a TCP/IP network.Continue Reading

• Safeguard data center power with regular UPS maintenance

  There are several levels of testing to address when developing a UPS maintenance checklist. Be sure to conduct visual, thermal and load tests to verify UPS health.Continue Reading

• AWS Reserved Instances

  AWS Reserved Instances (RIs) refer to compute capacity that can be reserved on Amazon Elastic Compute Cloud (Amazon EC2) and Amazon Relational Database Service (Amazon RDS) to take advantage of discounted pricing.Continue Reading

• Docker image

  A Docker image is a file used to execute code in a Docker container.Continue Reading

• SD-WAN vs. load balancing: How are they different?

  Load balancing is beneficial for network traffic distribution. SD-WAN can use load balancing for WAN connections, but it doesn't require load balancing to reap other benefits.Continue Reading

• Remote Procedure Call (RPC)

  A Remote Procedure Call (RPC) is a software communication protocol that one program uses to request a service from another program located on a different computer and network, without having to understand the network's details.Continue Reading

• Microsoft Remote Desktop Web Access (Microsoft RD Web Access)

  Microsoft Remote Desktop Web Access (Microsoft RD Web Access) is a Remote Desktop Services role in some versions of the Windows Server OS.Continue Reading

• An introduction to the RESTful API Modeling Language (RAML)

  The RESTful API Modeling Language, or RAML, can be a powerful tool for developers looking to create an efficient, standardized API management strategy.Continue Reading

• SD-WAN security

  SD-WAN security refers to the practices, protocols and technologies protecting data and resources transmitted across software-defined wide area network infrastructure.Continue Reading

• technological convergence

  Technological convergence is a term that describes bringing previously unrelated technologies together, often in a single device.Continue Reading

• information technology (IT)

  Information technology (IT) is the use of computers, storage, networking and other physical devices, infrastructure and processes to create, process, store, secure and exchange all forms of electronic data.Continue Reading

• logical unit number (LUN)

  A logical unit number (LUN) is a unique identifier for designating an individual or collection of physical or virtual storage devices that execute input/output (I/O) commands with a host computer, as defined by the Small Computer System Interface (...Continue Reading

• purpose-built backup appliance (PBBA)

  A purpose-built backup appliance (PBBA) is a standalone disk-based storage device that is configured and optimized for storing backup data.Continue Reading

• Nutanix

  Nutanix is a private and hybrid cloud software provider. It started as a hyperconverged infrastructure pioneer that now markets its technology as a building block for private clouds.Continue Reading

• PowerFlex (formerly ScaleIO)

  PowerFlex is a software-defined storage product from Dell EMC. It is available as software only or as a prebuilt Dell server or rack appliance.Continue Reading

• data center

  A data center is a facility composed of networked computers, storage systems and computing infrastructure that organizations use to assemble, process, store and disseminate large amounts of data.Continue Reading

• net neutrality

  Net neutrality is the concept of an open, equal internet for everyone, regardless of content consumed or the device, application or platform used.Continue Reading

• AHCI vs. RAID: Features, differences and applications

  AHCI and RAID are fundamental concepts for running an efficient data management and storage infrastructure. Learn the AHCI and RAID basics, as well as how SATA and IDE compare.Continue Reading

• incremental backup

  An incremental backup is a backup type that only copies data that has been changed or created since the previous backup activity was conducted.Continue Reading

• LTO-9 (Linear Tape-Open 9)

  LTO-9 is a tape format from the Linear Tape-Open (LTO) Consortium. It launched in 2021.Continue Reading

• Positive vs. negative testing: Differences and examples

  Take an in-depth look at positive and negative testing. Learn how to use both to form the basis of a thorough testing approach through a series of real-world examples.Continue Reading

• LTO-7 (Linear Tape-Open 7)

  LTO-7 is a tape format from the Linear Tape-Open (LTO) Consortium released in late 2015. It succeeded the LTO-6 version, which launched in 2012.Continue Reading

• XaaS (anything as a service)

  XaaS is a collective term that refers to the delivery of anything as a service.Continue Reading

• user interface (UI)

  The user interface (UI) is the point of human-computer interaction and communication in a device.Continue Reading

• integrated development environment (IDE)

  An integrated development environment (IDE) is a software suite that consolidates basic tools required to write and test software.Continue Reading

• fault injection testing

  Fault injection testing is a software testing method that deliberately introduces errors to a system to ensure it can withstand and recover from error conditions.Continue Reading

• staging environment

  A staging environment (stage) is a nearly exact replica of a production environment for software testing.Continue Reading

• web application development

  Web application development is the creation of application programs that reside on remote servers and are delivered to the user's device over the internet.Continue Reading

• 12-factor app

  Twelve-factor app is a methodology for building distributed applications that run in the cloud and are delivered as a service.Continue Reading

• cross-browser testing

  Cross-browser testing, also called browser testing, is a quality assurance (QA) process that checks whether a web-based application, site or page functions as intended for end users across multiple browsers and devices.Continue Reading

• feature-driven development (FDD)

  Feature-driven development (FDD) is an Agile software development framework that organizes work around product features.Continue Reading

• Azure Kubernetes Service (AKS)

  Azure Kubernetes Service (AKS) is a managed container orchestration service based on the open source Kubernetes system, which is available on the Microsoft Azure public cloud.Continue Reading

• emergency power off (EPO) button

  The emergency power off button, also called an EPO switch or EPO panel, is a safety measure for quickly disconnecting electrical power to a particular piece of equipment or facility in the event of an emergency.Continue Reading

• DevOps Dojo

  A DevOps Dojo is a place where DevOps team members go for hands-on training.Continue Reading

• soak testing

  Soak testing is a type of performance testing that gauges how an application handles a growing number of users or increasingly taxing tasks over an extended period of time.Continue Reading

• model-driven development

  Model-driven development (MDD) is a format to write and implement software quickly, effectively and at minimum cost.Continue Reading

• How to calculate data center cooling requirements

  Data center cooling requirements are affected by several factors, including the equipment's heat output, floor area, facility design and electrical system power rating.Continue Reading

• raceway

  A raceway, sometimes referred to as a raceway system, is an enclosed conduit that forms a physical pathway for electrical wiring.Continue Reading

• spike testing

  Spike testing is a type of performance testing in which an application receives a sudden and extreme increase or decrease in load.Continue Reading

• Electronic Data Interchange (EDI)

  Electronic Data Interchange (EDI) is the transfer of data from one computer system to another by standardized message formatting without the need for human intervention.Continue Reading

• Linear Tape-Open (LTO)

  Linear Tape-Open (LTO) is an open-format tape storage technology created by HPE, IBM and Seagate Technology.Continue Reading

• networking (computer)

  Networking, also known as computer networking, is the practice of transporting and exchanging data between nodes over a shared medium in an information system.Continue Reading

• business impact analysis (BIA)

  A business impact analysis (BIA) is a systematic process to determine and evaluate the potential effects of an interruption to critical business operations as a result of a disaster, accident or emergency.Continue Reading

• GNOME (GNU Network Object Model Environment)

  GNOME (GNU Network Object Model Environment) is a graphical user interface (GUI) and set of computer desktop applications for Linux operating system (OS) users.Continue Reading

• host virtual machine (host VM)

  A host virtual machine is the server component of a virtual machine the underlying hardware that provides computing resources to support a particular guest VM.Continue Reading

• data destruction

  Data destruction is the process of destroying data stored on tapes, hard disks and other forms of electronic media so that it's completely unreadable and can't be accessed or used for unauthorized purposes.Continue Reading

• free cooling

  Free cooling is an approach to lowering the air temperature in a building or data center by using naturally cool air or water instead of mechanical refrigeration.Continue Reading

• software redundant array of independent disk (software RAID)

  Software RAID, also known as virtual RAID, is a form of RAID (software redundant array of independent disk) performed on an internal server.Continue Reading

• The 7 stages of the SDLC explained

  The development process can be broken into seven distinct phases that transform high-level plans into production-ready software. Learn how to approach each phase of the SDLC.Continue Reading

• G-Cloud (Government Cloud)

  G-Cloud (Government Cloud) is a U.K. government program to promote government-wide adoption of cloud computing.Continue Reading

• e-cycling

  E-cycling, also known as 'electronic recycling,' is the reuse or recycling of used electronic materials to limit e-waste.Continue Reading

• Learn the phases of feature-driven development

  Learn how development teams can use the five phases of feature-driven development to put Agile principles into practice by structuring projects around app functionality.Continue Reading

• building management system

  A building management system (BMS) is a control system that can be used to monitor and manage the mechanical, electrical and electromechanical services in a facility.Continue Reading

• vertical cloud

  A vertical cloud, also known as an industry cloud platform, is a set of cloud computing services optimized for use in a particular industry or for a specific business model.Continue Reading

• cloud browser

  A cloud browser is a cloud-based combination of a web browser application with a virtualized container that implements the concept of remote browser isolation.Continue Reading

• OAuth (Open Authorization)

  OAuth (Open Authorization) is an open standard authorization framework for token-based authorization on the internet.Continue Reading

• storage as a service (STaaS)

  Storage as a service (STaaS) is a managed service in which the provider supplies the customer with access to a data storage platform.Continue Reading

• local area network (LAN)

  A local area network (LAN) is a group of computers and peripheral devices that are connected together within a distinct geographic area, such as an office building or campus.Continue Reading

• How to install and run Podman on Rocky Linux

  Rocky Linux can run and install Podman, an open source Linux tool and competitor to Docker that uses containers to find, run and deploy applications. Run Podman on Rocky Linux now.Continue Reading

• middleware

  Middleware is software that bridges the gap between applications and operating systems by providing a method for communication and data management.Continue Reading

• Learn Jenkins: Tutorial for beginners

  Jenkins is a popular open source CI/CD tool, and it's not hard to learn either. Learn to build your own CI/CD pipelines with this full Jenkins tutorial for beginners.Continue Reading

• Compare Nutanix AHV vs. VMware ESXi in the hypervisor battle

  Though Nutanix AHV and VMware ESXi offer similar feature sets, admins' decisions will depend on several factors, such as virtualization needs and workload size.Continue Reading

• Azure Site Recovery tutorial for workload disaster recovery

  Understand the costs and the requirements to use this flexible disaster recovery service that works with Linux and Windows Server in the data center and virtual machines in the Azure cloud.Continue Reading

• Learn how New Relic works and when to use it for IT monitoring

  New Relic is one of many tools that can help an IT team track application performance and health. Before adoption, understand primary use cases and SaaS installation requirements.Continue Reading

• enterprise storage

  Enterprise storage is a centralized repository for business information that provides common data management, protection and sharing functions through connections to computer systems.Continue Reading

• SASE vs. SD-WAN: What's the difference?

  SASE and SD-WAN are two similar architectures administrators use to provide secure network access, but they differ in terms of deployment, security, connectivity and more.Continue Reading

• Peripheral Component Interconnect Express (PCIe, PCI-E)

  Peripheral Component Interconnect Express (PCIe or PCI-E) is a serial expansion bus standard for connecting a computer to one or more peripheral devices.Continue Reading