Data Loss and Data Recovery

1. Data Loss and Data Recovery

2. Table of Contents • Websites and Web Hosting Service Providers • Data Loss • Causes of Data Loss • Consequences of Data Loss • Data Recovery • Phases of Data Recovery • Backup and Recovery • Considerations for Data Recovery • Forms of Data Recovery • Conclusion

3. Websites and Web Hosting Service Providers • A website refers to a group of related web pages and content (data) that is browsed online. It is located under a single domain and is identifiable by a common domain name. • Every website that is visited over the Internet is made accessible by a certain web hosting service provider, which is also referred to as a web host. Server space is leased by this web host to store as well as make available the files of a website. These web hosts also provide the necessary services and the technologies that deliver those files to make the website accessible for online viewing. • Terms such as “Cloud Hosting Company in India” or the “Best Windows Hosting Company” as well as the “Best Web Hosting Company in India” are used to refer to companies that provide various types of web hosting services.

4. Data Loss • Data loss, which is also called data leakage, refers to the condition where a user’s data gets corrupted, deleted and/or made unreadable due to certain reasons. As is evident from the term, there is a loss of data that is caused by the deliberate or indelible rate acts of a user and/or through any software or application. It is known to have taken place when one or more data components can no longer be utilized by a user or by a requesting application. It can happen to the data that is stored as well as to the data that is being transmitted over the Internet.

5. Causes of Data Loss • Data corruption intentionally or unintentionally • Human error • Hard drive damage • Hard drive formatting • Software corruption • Data getting intentionally or accidentally deleted or overwritten by a user • Virus or malware infection • Hacking • Partition loss • Power outages • Data storage device getting physically damaged or stolen • Data theft over the network by any network intervention attack Encrypting login pages (For example, using SSL encryption)

6. Consequences of Data Loss • Theft/loss of confidential information • Hampering of productivity • Loss of reputation as well as loss of customers’ trust towards the business • Economic loss • Legal trouble • Business failure (in extreme cases)

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8. Data Recovery Data recovery refers to the process of restoring data that has been lost, gotten corrupted, accidentally or unintentionally deleted, and/or made inaccessible to the user for some reason. Data recovery can be achieved by various means. Data recovery helps to get the user’s database back to a previous state that it was in, prior to the data loss. The process of data recovery helps to regain the most recently saved state of data, before the loss. Data recovery does not apply to any information that has never been written to a storage, such as a document that got created but was not saved prior to the data loss. It the context of data recovery it is important to mention that any information that has been overwritten cannot be recovered. This makes it critical to ensure that nothing gets written to the storage till the time the last file gets recovered.

9. Phases of Data Recovery In general data recovery’s process entails four phases but it might vary with regard to the type of data loss and the recovery process that is required. • 1st Phase- Repairment of the hard disk drive • 2nd Phase- Image the drive to a new drive or a disk image file • 3rd Phase- Files’, partition’s, MBR’s and file system structures’ logical recovery • 4th Phase- Repairment of the retrieved damaged files

10. Backup and Recovery • Data backup refers to the process of copying or archiving files and folders, in order to ensure restoration of data for the purpose of being able to regain it in case of data loss. This acts as a protective measure, which helps to maintain a copy of the user’s data that can be easily restored in the event of any untoward incident resulting in data loss. It should be ensured that data backup happens automatically and at regular intervals. If not, then the risks associated with data loss and the failure to recover the lost data increase significantly.

11. Considerations for Data Recovery In the context of data recovery certain important factors need to be considered which are mentioned below, in no particular order- • Choosing thefiles and folders (data) for backup • Choosing the compression method to use • Choosing the frequency of backups • Choosing the types of backups to run • Choosing the kind of media for storage of backups • Choosing the store facility for the backup data, to keep it safe

12. Forms of Data Recovery The various forms of data recovery are mentioned below, in no particular order- • Digital recovery • Raid recovery • Tape recovery • Hard drive recovery • Optical recovery • Removable recovery

13. Conclusion We live in a world that is driven by technology. Data, whether it is personal or business related, assumes significant importance and its loss can have serious ramifications, as has been touched upon in the previous slides where the consequences of data loss have been mentioned. Hence, it becomes vital to keep any data safe by maintaining its backup at regular intervals. This ensures that in the unfortunate and unwelcome situation of loss of users’ data, it can be restored without any difficulty.

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