IT Systems Management Definitions

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  • A

    AIOps (artificial intelligence for IT operations)

    Artificial intelligence for IT operations (AIOps) is an umbrella term for the use of big data analytics, machine learning and other AI technologies to automate the identification and resolution of common IT issues.

  • Alpine Linux

    Alpine Linux is a small, security-oriented, lightweight Linux distribution based on the musl C standard library and BusyBox utilities instead of GNU.

  • AMD (Advanced Micro Devices)

    Advanced Micro Devices (AMD) is a semiconductor company, known for designing and developing computer processors and graphics technologies.

  • AMD Virtualization (AMD-V)

    AMD-V (AMD Virtualization) technology refers to a set of hardware extensions and on-chip features for the AMD family of x86 microprocessors.

  • Application Performance Index (Apdex)

    Application Performance Index, also known as Apdex, is an open standard intended to simplify reports of application performance.

  • B

    bare-metal hypervisor

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

  • C

    chaos engineering

    Chaos engineering is the process of testing a distributed computing system to ensure that it can withstand unexpected disruptions.

  • Citrix XenServer

    Citrix XenServer is an open source server virtualization platform based on the Xen hypervisor.

  • COBOL (Common Business Oriented Language)

    COBOL (Common Business-Oriented Language) is a high-level programming language for business applications. It was the first popular language designed to be operating system-agnostic and is still in use in many financial and business applications today.

  • compliance automation

    Compliance automation, also known as automated compliance, is the practice of using technology -- such as applications with artificial intelligence features -- to perform and simplify compliance procedures.

  • configuration file

    A configuration file, often shortened to 'config file,' defines the parameters, options, settings and preferences applied to operating systems (OSes), infrastructure devices and applications in an IT context.

  • continuous delivery (CD)

    Continuous delivery (CD) is an approach for software delivery in which development teams produce and test code in short but continuous cycles to improve software quality.

  • D

    Datadog

    Datadog is a monitoring and analytics tool for information technology (IT) and DevOps teams that can be used to determine performance metrics as well as event monitoring for infrastructure and cloud services.

  • disaggregated server

    A disaggregated server is a server whose components and resources are divided into subsystems.

  • distributed tracing

    Distributed tracing, also called distributed request tracing, is a method for IT and DevOps teams to monitor applications, especially those composed of microservices.

  • F

    friendly name

    A friendly name is a term used to refer to a device, application file, certificate or other IT asset instead of its technical name.

  • G

    golden image

    A golden image is a template for a virtual machine, virtual desktop, server or hard disk drive.

  • guest operating system (guest OS)

    A guest operating system is the operating system installed on either a virtual machine (VM) or partitioned disk. It is usually different from the host operating system.

  • I

    IT incident management

    IT incident management is an area of IT service management (ITSM) wherein IT teams return a service to normal as quickly as possible after a disruption with as little negative impact on the business as possible.

  • IT incident report

    An IT incident report is documentation of an event that disrupted the normal operations of an IT system or had the potential to do so as well as how the situation was handled.

  • IT monitoring

    IT monitoring is a process that gathers metrics on the operations of an IT environment.

  • IT operations (IT ops)

    The term IT operations (IT ops) describes the many processes and services an IT department manages and maintains within an organization.

  • IT operations management (ITOM)

    IT operations management (ITOM) is a strategic approach to managing an organization's information technology needs.

  • IT service management (ITSM)

    IT service management (ITSM) is a general term that describes a strategic approach to design, deliver, manage and improve the way businesses use IT.

  • IT systems management

    Systems management is the administration of the information technology (IT) systems in an enterprise network or data center.

  • L

    legacy system (legacy application)

    A legacy system is any outdated computing system, hardware or software that is still in use. Legacy systems include computer hardware, software applications, file formats and programming languages.

  • live migration

    Live migration refers to the process of moving a virtual machine running on one physical host to another host without disrupting normal operations or causing any downtime or other adverse effects for the end user.

  • log analytics

    Log analytics is the assessment of a recorded set of information from one or more events, captured from a computer, network, application operating system (OS) or other IT ecosystem component.

  • M

    mean time to detect (MTTD)

    Mean time to detect (MTTD) is a measure of how long a problem exists in an IT deployment before the appropriate parties become aware of it.

  • memory paging

    Memory paging is a memory management technique used to control sharing of memory resources belonging to a computer or virtual machine (VM).

  • mission-critical application

    A mission-critical application is a software program or suite of related programs that must function continuously for a business or business segment to be successful.

  • mutation testing

    Mutation testing, also known as code mutation testing, is a form of white box testing in which testers change specific components of an application's source code to ensure a software test suite can detect the changes.

  • N

    Nagios

    Nagios is an open source IT system monitoring tool.

  • O

    on-demand computing (ODC)

    On-demand computing (ODC) is a delivery model in which computing resources are made available to the user as needed.

  • What is observability? A beginner's guide

    Observability is a management strategy focused on keeping the most relevant, important and core issues at or near the top of an operations process flow.

  • P

    phased rollout

    Phased rollout is a hardware or software migration method that involves incrementally implementing a new system.

  • physical to virtual (P2V)

    Physical to virtual (P2V), also called hardware virtualization, refers to the migration of physical machines to virtual machines (VMs).

  • platform engineering

    Platform engineering is a specialized discipline within software development that focuses on designing, building, maintaining and improving the toolchains and workflows software developers use.

  • R

    real user monitoring (RUM)

    Real user monitoring (RUM) is a technology used by developers and network operators to gain real-world observability into web performance and service availability.

  • root cause analysis

    Root cause analysis (RCA) is a method for understanding the underlying cause of an observed or experienced incident.

  • S

    server hardware degradation

    Server hardware degradation is the gradual breakdown of the physical parts of a server.

  • serverless computing

    Serverless computing is a cloud computing execution model that lets software developers build and run applications and servers without having to provision or manage the back-end infrastructure.

  • service discovery

    Service discovery is the automatic detection of devices and offered services over a network.

  • ServiceNow

    ServiceNow is a software company that provides a cloud-based, AI-driven platform for automating multiple management workflows in enterprises. The company specializes in IT service management, IT operations management and IT business management.

  • storage pool

    A storage pool is capacity aggregated from disparate physical storage resources in a shared storage environment.

  • systems operator (sysop)

    In IT, a systems operator (sysop) is a person who runs computer servers and other devices on a daily basis in a data center.

  • V

    virtual hard drive

    A virtual hard drive file is a container file that acts similar to a physical hard drive.

  • Virtual Machine Disk format (VMDK)

    VMware Virtual Machine Disk format (VMDK) is a format specification for virtual machine (VM) disk image files.

  • Virtual Machine Management Service

    Virtual Machine Management Service, also known as VMMS or vmms.exe, is the main module in Microsoft Windows operating system that controls all aspects of Hyper-V server virtualization.

  • virtual to physical (V2P)

    Virtual to physical (V2P) involves transferring or porting a virtual machine (VM) onto a physical machine.

  • virtual to virtual (V2V)

    Virtual to virtual (V2V) refers to the migration of an operating system (OS), application program and data from a virtual machine (VM) or disk partition to another virtual machine or disk partition.

  • virtualization

    Virtualization is the creation of a virtual -- rather than actual -- version of something, such as an operating system (OS), a server, a storage device or network resources.

  • X

    Xen

    Xen is the open source hypervisor included in the Linux kernel and, as such, it is available in all Linux distributions.

  • Z

    Zabbix

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

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