Disaster Recovery Definitions

  • D

    data replication

    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 strategies are critical, as many businesses fail following an unforeseen event. DR may require an internal or external site when a main data center is down.

  • disaster recovery (DR) test

    A disaster recovery (DR) test is the examination of each step in a disaster recovery program, as outlined in the 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 man-made or natural catastrophe.

  • disaster recovery plan (DRP)

    A company's disaster recovery policy is enhanced with a documented DR plan that formulates strategies, and outlines preparation work and testing.

  • 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.

  • E

    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

    Emergency notification systems contain names, addresses, phone numbers and email addresses so crucial information can be communicated to employees during a disaster.

  • F

    fault-tolerant

    Systems with integrated fault tolerance are designed to withstand multiple hardware failures to ensure continuous availability.

  • FFIEC Cybersecurity Assessment Tool

    The Federal Financial Institutions Examination Council developed the Cybersecurity Assessment Tool to help organizations identify cybersecurity risks and determine their level of preparedness.

  • H

    high availability cluster (HA cluster)

    A high availability cluster is a group of hosts that act like a single system and provide continuous uptime.

  • I

    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)

    The ISO 22317 provides guidance on conducting a formal business impact analysis. The standard can be helpful for businesses that perform many BIAs each year.

  • M

    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.

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