Backup and Recovery Technologies for Business Continuity

Backup and Recovery Technologies for Business Continuity

Nijaz Bajgoric (University of Sarajevo, Bosnia)
DOI: 10.4018/978-1-60566-160-5.ch010
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Chapters V-IX dealt with server operating environment and its role in ensuring business continuity mostly in cases of ongoing data processing operations. Having a server down and making it up as soon as possible in order to minimize the costs of downtime was the topic in these chapters. Chapter X deals with technologies for ensuring higher levels of data availability in cases of data loss by having data recovered ASAP. Several backup and recovery technologies are explored with focus being on the traditional backup.
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An introduction to data protection technologies from business continuity perspective is given.

In addition to server configurations, server operating systems and ServerWare solutions, the second set of business continuity drivers as defined in Chapter III is presented here as a set of data protection technologies. It represents the second layer of an information infrastructure that can be implemented to enhance continuous computing and business continuity. The whole model based on three layers of business continuity technologies is shown on Figure 1. Layer 2 in this model contains the technologies that are used for data backup and recovery.

Figure 1.

The layers of the continuous computing infrastructure

Several information technologies are used in order to store data in data centres in an efficient and effective way and protect it such that business does not suffer if, for any reason, data is lost. Primarily, this set comprises three main groups: data storage, data backup and data recovery technologies.

Just like using several what-if scenarios in financial management (e.g., in Excel or any personal productivity tool), in the area of data (information) management there is a need of building several „what-if“ scenarios such as:

  • 1.

    What if we our application server goes down; can we do our business without business critical applications running properly? Can we still keep our business „in business“ if main application server is down, or if data is lost?

  • 2.

    What if our messaging server goes down and stay inactive for couple of hours? What is going to happen if an important e-mail went to spam messages that are automatically removed from the messaging server?

  • 3.

    What if our Web server goes down and is unreachable for several hours?

  • 4.

    What if our CRM server gets into a „blue screen of death“; how long our existing customers and our prospectives will not be able to connect to our server and get necessary data about the products they want to buy?

  • 5.

    What if our primary data storage (har disk) crashed? Do we have backup, on which media, how long will it take to recover from that situation?

  • 6.

    What if we get a hardware glitch on our RAID system? What is going to happen with our data stored on it?

  • 7.

    What if our main data backup medium is broken and there is no way to restore data onto hard disk?

  • 8.

    What if we have a problem on our LAN/WAN infrastructure? Network switch, router, modem, and so forth, is broken and we can not reach our data?

  • 9.

    What if we have lost our backup tape (or the whole tape library), on-site due to some sort of disaster or off-site during the transport to a remote location?

  • 10.

    What if a major hardware glitch occured on our main server and it caused all data is gone. We have backup taken last night, is it enough from data freshness - validity perspective? How long it will take to recover from that situation, recover data and continue with data processing?

  • 11.

    What is going to happen if one of our managers lost his or her notebook with business-critical data on it?

  • 12.

    What if we have lost all power in our building? What if we have lost main Internet connection and all Web servers are down?

  • 13.

    And so forth.

Traditionally, during the period of more than thirty years, data management was treated in terms of primary data storage in the form of disk-based data management for data processing and secondary data storage in the form of tape-based data management system (tape backup). Storing files on hard disks, taking regular tape backups, having data restored (recovered) in case of data-file corruption or data-file loss, was a standard approach used for more than three decades.

Complete Chapter List

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Nijaz Bajgoric
Table of Contents
Angappa Gunasekaran
Nijaz Bajgoric
Nijaz Bajgoric
Chapter 1
Nijaz Bajgoric
The first chapter aims at defining a “big picture” of contemporary business and business computing. Business pressures and business risks are... Sample PDF
Business Computing in the Internet Era
Chapter 2
Economics of Downtime  (pages 23-39)
Nijaz Bajgoric
After introducing some basic facts on how today’s businesses are faced with several types of business risks, the second chapter tends to explain one... Sample PDF
Economics of Downtime
Chapter 3
Nijaz Bajgoric
The previous chapter introduced the two major concepts of continuous computing: downtime and uptime. Chapter three goes a step further and aims at... Sample PDF
Business Continuity and Business Continuity Drivers
Chapter 4
Nijaz Bajgoric
Based on the framework defined in Chapter III, the fourth chapter discusses the models of information architectures that are used in implementing... Sample PDF
Information Architectures for Business Continuity
Chapter 5
Nijaz Bajgoric
After identifying major downtime points within a client-server architecture in Chapter IV, Chapter V discusses in more details enterprise servers... Sample PDF
Server Operating Environment and Business Continuity Drivers
Chapter 6
Server Operating Systems  (pages 103-131)
Nijaz Bajgoric
Server configurations described in Chapter V are operated by server operating systems. Server-based application software and business-critical... Sample PDF
Server Operating Systems
Chapter 7
Nijaz Bajgoric
Server operating systems described in Chapter VI usually come preinstalled. Additional components can be installed “on-demand” in the form of... Sample PDF
Advanced Server Technologies for Business Continuity
Chapter 8
Nijaz Bajgoric
Chapter VIII discusses the server operating systems’ main attributes from the selection perspective. Several selection criteria are explained... Sample PDF
Choosing the Server Operating Platform for Business Continuity
Chapter 9
Nijaz Bajgoric
Chapter IX focuses on the role of system administration as an IT-profession and system administrator as a person who does the administrative... Sample PDF
System Administration and System Administrator's Role in Business Continuity
Chapter 10
Nijaz Bajgoric
Chapters V-IX dealt with server operating environment and its role in ensuring business continuity mostly in cases of ongoing data processing... Sample PDF
Backup and Recovery Technologies for Business Continuity
Chapter 11
Nijaz Bajgoric
In addition to standard storage and traditional tape-based backup technologies explained in Chapter X, businesses employ advanced storage... Sample PDF
Advanced Storage Technologies for Business Continuity
Chapter 12
Nijaz Bajgoric
Continuous computing technologies explored in previous chapters, in many cases, are located on different locations. However, they depend on each... Sample PDF
Networking Technologies for Business Continuity
Chapter 13
Nijaz Bajgoric
After explaining several continuous computing technologies in previous chapters, the book focuses on business continuity management in Chapter XIII.... Sample PDF
Business Continuity Management
Chapter 14
Nijaz Bajgoric
Continuous computing technologies are employed in order to achieve business continuity from the business operations perspective. In the same time... Sample PDF
Business Continuity for Business Agility
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