Disaster Recovery Definitions
This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing disaster recovery and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.
business continuity plan (BCP)
A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue operating during an unplanned event.
business continuity plan audit
A business continuity plan audit is a formalized method for evaluating how business continuity processes are being managed.
business continuity policy
A business continuity policy is a set of standards and guidelines that an organization enforces to ensure resilience and proper risk management.
business continuity software
Business continuity software is an application or suite designed to make business continuity planning/business continuity management (BCP/BCM) processes, metrics and compliance more efficient and accurate.
What is BCDR? Business continuity and disaster recovery guide
Business continuity (BC) and disaster recovery (DR) are closely related practices that support an organization's ability to remain operational after an adverse event.
What is business continuity and why is it important?
Business continuity is the ability of an organization to maintain essential functions during, as well as after, a disaster has occurred.
A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate recovery, if necessary.
Change control is a systematic approach to managing all changes made to a product or system.
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.
Crisis communication is a method of corresponding with people and organizations during a disruptive event to provide them with the information they need to respond to the situation.
crisis management plan (CMP)
A crisis management plan (CMP) outlines how to respond to a critical situation that would negatively affect an organization's profitability, reputation or ability to operate.
Data recovery restores data that has been lost, accidentally deleted, corrupted or made inaccessible. Learn how data recovery works, causes of data loss and data recovery techniques.
Data replication copies data from one location to another using a SAN, LAN or local WAN. This allows organizations to have current data available in case a disaster occurs. There are two types of data replication: synchronous and asynchronous.
disaster recovery (DR)
Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.
disaster recovery (DR) test
A disaster recovery test (DR test) is the examination of each step in a disaster recovery plan as outlined in an organization's business continuity/disaster recovery (BCDR) planning process.
Disaster Recovery as a Service (DRaaS)
Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide failover in the event of a natural catastrophe, power outage or another type of business disruption.
disaster recovery plan (DRP)
A disaster recovery plan (DRP) is a documented, structured approach that describes how an organization can quickly resume work after an unplanned incident.
disaster recovery site (DR site)
An organization uses a disaster recovery (DR) site to recover and restore its technology infrastructure and operations when its primary facility becomes unavailable. In deciding the location and setup of a disaster recovery site, a business must weigh costs against any risks, and heavily consider distance between the DR facility and the primary data center.
disaster recovery team
A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an organization’s procedures for business continuity (BC) and recovery.
emergency communications plan (EC plan)
An emergency communications plan (EC plan) provides guidelines, contact information and procedures for how information should be shared should a crisis that requires immediate action occur.
emergency management plan
An emergency management plan should include measures that provide for the safety of personnel and, if possible, property and facilities.
emergency notification system
An emergency notification system is an automated method of contacting a group of people within an organization and distributing important information during a crisis.
Fault-tolerant technology is a capability of a computer system, electronic system or network to deliver uninterrupted service, despite one or more of its components failing.
high availability cluster (HA cluster)
A high availability cluster is a group of hosts that act like a single system and provide continuous uptime.
incident management plan (IMP)
An incident management plan (IMP), sometimes called an incident response plan or emergency management plan, is a document that helps an organization return to normal as quickly as possible following an unplanned event.
ISO 22301 (International Organization of Standardization standard 22301)
International Organization of Standardization standard 22301 (ISO 22301) is a proposed standard that would call for meeting specific societal security requirements for disaster preparedness and business continuity management systems (BCMS). It is currently in draft form that, if approved, would call for requirements for creating a BCMS, as well as managing and improving that system.
ISO 22317 (International Standards Organization 22317)
ISO 22317 is the first formal standard to address the business impact analysis process.
mass notification system (MNS)
A mass notification system is a platform that sends one-way messages to inform employees and the public of an emergency.
Memory mirroring is the division of memory on a server into two channels. The first channel is mirrored to the second channel, creating a redundant copy of memory.
natural disaster recovery
Natural disaster recovery is the process of recovering data and resuming business operations following a natural disaster.
network disaster recovery plan
A network disaster recovery plan is a set of procedures designed to prepare an organization to respond to an interruption of network services during a natural or humanmade catastrophe.
Network Load Balancing (NLB)
Network Load Balancing is a Windows Server feature that can distribute network traffic among multiple servers.
Operational resilience is a business's ability to respond to and overcome adverse circumstances during operation that might cause financial loss or disrupt business services.
Organizational resilience is an organization's ability to anticipate issues ahead of time and develop a plan for handling identified problems.
A pandemic plan is a documented strategy for business continuity in the event of a widespread outbreak of a dangerous infectious disease.
Ransomware recovery is the process of resuming operations following a cyberattack that demands payment in exchange for unlocking encrypted data.
What is risk mitigation?
Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.
Synchronous replication is the process of copying data over a storage area network, local area network or wide area network so there are multiple, current copies of the data.
tabletop exercise (TTX)
A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a simulated disaster scenario.
virtual disaster recovery
Virtual disaster recovery is a type of DR that typically involves replication and enables a user to fail over to virtualized workloads.
VMware vSphere Site Recovery Manager (SRM)
VMware vSphere Site Recovery Manager (SRM) is a disaster recovery management product from VMware that provides automated failover and disaster recovery testing.
A warm site is a type of facility an organization uses to recover its technology infrastructure when its primary data center goes down.
Windows File Share Witness (FSW)
A Windows File Share Witness is a file share that is available to all nodes in a high availability (HA) cluster.
Zerto is a storage software vendor that specializes in enterprise-class business continuity and disaster recovery in virtual and cloud environments.