Computer Science

Backup

A backup refers to the process of creating a duplicate copy of data to protect against data loss. In computer science, backups are essential for safeguarding important files and ensuring that data can be restored in the event of hardware failure, accidental deletion, or other unforeseen issues. This practice is crucial for maintaining data integrity and continuity of operations.

Written by Perlego with AI-assistance

4 Key excerpts on "Backup"

Index pages curate the most relevant extracts from our library of academic textbooks. They’ve been created using an in-house natural language model (NLM), each adding context and meaning to key research topics.
  • Bookkeeping for Nonprofits
    eBook - ePub

    Bookkeeping for Nonprofits

    A Step-by-Step Guide to Nonprofit Accounting

    • Murray Dropkin, James Halpin(Authors)
    • 2012(Publication Date)
    • Jossey-Bass
      (Publisher)

    ...The Backup process includes the making of a copy of the system’s data and transporting the copy to another physical location. The Backup methodology offers many choices; selection of the appropriate choices depends on the organization, the computer system, and the circumstances at the time of the Backup. Incremental or Complete? Backups can be made of information that has changed since the time of the previous Backup, or Backups can include all information on a computer system. The incremental option assumes that a valid, complete Backup exists; in the event of a failure, the complete Backup would be restored first, and then subsequent incremental Backups would be restored by date order. Depending on the volume of information, the organization could elect to create a complete Backup every time. The incremental Backup strategy is more cost effective with large quantities of data. File by File or Image? Backup software offers a choice between creating a file-by-file Backup and creating an image of the disk. In a file-by-file Backup, each individual file can be accessed independently. Image Backups are generally useful only when creating a complete Backup. Modern compression techniques can be applied in either case. The file-by-file method is generally more flexible. Generational Strategy All Backups are created on some type of media. There are many choices available, but each medium is a physical product subject to imperfections and a limited useful life. To minimize the risk of media failure, implement a strategy of maintaining multiple generations of Backups. With this strategy, every Backup is a new generation of data. Assuming that each Backup is a complete set of files, today’s Backup is the son, yesterday’s Backup is the father, the day before yesterday’s Backup is the grandfather, and so on. Keep five or six generations in the Backup archive before re-using the media...

  • Information Security Management Handbook, Volume 6
    • Harold F. Tipton, Micki Krause Nozaki, Harold F. Tipton, Micki Krause Nozaki(Authors)
    • 2016(Publication Date)

    ...It is important to ensure the physical and environmental security of all remote off-site storage facilities that are being used for time-critical data Backup. Data security : Data security mechanisms, including access control, data transmission, and storage encryption of off-site data, provide a degree of data integrity and security. Business continuity and crisis management planning : As mentioned previously in this chapter, attention to the development, maintenance, and testing of full scope enterprise business continuity and crisis management planning processes are fundamental in helping support data Backup recovery and restoration. Metrics : If we truly get what we measure, development of measurements is necessary. They should be designed to help make enterprise business process more efficient and effective and must be uniquely designed for the agreed-upon data Backup policies, processes, and practices (e.g., operational-, financial-, and personnel-related), so the metrics will enhance the possibilities of success. Conclusion Questions about the adequacy of data Backup strategies have long been a major concern of enterprise managers. Although there is no major news on that, there IS news that Internet-centric data Backup supporting technologies are evolving rapidly. Given the Internet cloud computing trends, might a reevaluation of existing data Backup strategies make sense? Whether considering traditional approaches to data Backup or use of Internet cloud computing, determination of requirements objectives is the first step. But, making decisions between cloud and localized data Backup options can be reduced to a few key questions...

  • Managing and Sharing Research Data
    eBook - ePub

    Managing and Sharing Research Data

    A Guide to Good Practice

    • Louise Corti, Veerle Van den Eynden, Libby Bishop, Matthew Woollard(Authors)
    • 2019(Publication Date)

    ...As an example, Dr Fitzgerald, a specialist in infectious diseases, had her laptop stolen in a burglary and feared that she had lost seven years’ worth of her research on Ebola (Tristan, 2017). The thief not only stole her laptop, but also a Backup hard drive of her research that she had stored at home. This highlights the importance of ensuring that an adequate Backup strategy is in place. The strategy should – amongst other things – consider how many copies of the data will be made, where these copies will be stored (ideally being stored in more than one location), how frequently Backups will be made, and how the Backup’s integrity will be checked. In addition, where the research data contain confidential or personal information, the original and backed-up data should be encrypted to help protect the information, were the worst to occur. Your Risk Analysis for Planning a Backup Strategy for Your Research Data Q. Is there any Backup provision already in place? Find out if your institution has an operational Backup policy. Most universities have one for files held on a university network space. In most cases, their policies do not include your local drive; you must manually back up this drive if you use it for data storage. If you are not happy with the robustness of the solution you should carry out an independent Backup of critical files. Q. Which systems to back up? You need a strategy for all systems where data are held, including portable computers and devices, non-network computers and home-based computers. It will be important to identify which information on these systems should be backed up: all, some or just the parts that have changed. If your institution does not provide any system Backup, you may need to take full responsibility for all your own Backups. Q. How often should I back up my data? Consider how often you make changes to your data, and which amount of changed data you are prepared to lose between Backups...

  • Your Work from Home Life
    eBook - ePub

    Your Work from Home Life

    Redefine, Reorganize and Reinvent Your Remote Work (Tips for Building a Home-Based Working Career)

    • MJ Fievre, Becca Anderson, Brenda Knight(Authors)
    • 2021(Publication Date)
    • Mango
      (Publisher)

    ...Watch Your Back: Backing Up Data and Critical Records Technology is prone to breakdowns at the most inconvenient times. Let’s say you’re almost done with that quarterly report, and the power goes out. When it comes back on, you boot up your computer and frantically try to find traces of the hard work you’ve put in over the past week, to no avail. Losing documents or data can be frustrating at the very least, and in some cases career-wrecking. Learn how to back up your work frequently to avoid a catastrophic loss. Here are six ways we back up our work: Six ways to back up your data 1. USB sticks 2. External hard drive 3. Time machine 4. Network attached storage 5. Cloud storage 6. Printing...