![backup and recovery in database management system pdf backup and recovery in database management system pdf](https://1.bp.blogspot.com/-H0GEDJ2DKuk/Wh87pi4M1GI/AAAAAAAAABE/C40q2cgafDw4Nd5iHTnTcl7bKKmUifmfQCLcBGAs/s1600/computer-tech-vancouver-bc.jpg)
- BACKUP AND RECOVERY IN DATABASE MANAGEMENT SYSTEM PDF SOFTWARE
- BACKUP AND RECOVERY IN DATABASE MANAGEMENT SYSTEM PDF WINDOWS
Unlike stand-alone data loss prevention products, integrated DLP products usually do not share the same management consoles, policy management engines and data storage. Integrated DLP products are usually found on perimeter security gateways and are useful for detecting sensitive data at rest and in motion.Stand-alone DLP products can reside on specialized appliances or be sold as software.Data loss prevention ( DLP) products help companies identify and stop data leaks, and come in two versions: stand-alone and integrated. One way to avoid the time-consuming and costly process of data recovery is to prevent the data loss from ever taking place. Users have no idea the recovery is taking place, and once the recovery is complete, the user workload is redirected back to the original VM. A snapshot is created so the backup remains in a pristine state and all user write operations are redirected to that snapshot users then work off the backup virtual machine ( VM) and the recovery process begins in the background. Instant recovery, also known as recovery in place, tries to eliminate the recovery window by redirecting user workloads to the backup server. Therefore, it's wise to identify what can be left behind and what data must be recovered. In addition, not all production data at a remote location may be needed to resume operations. There are also risks involved with transporting tapes. Recovering core applications and data from tape takes time, and you may need to access your data immediately after a disaster. Most data recovery processes combine technologies, so organizations aren't solely recovering data by tape. Some utilities can be used to reconstruct the file headers manually, so at least some of the file can be recovered. Many applications, such as Microsoft Office, put uniform headers at the beginning of files to designate that they belong to that application.
![backup and recovery in database management system pdf backup and recovery in database management system pdf](https://pesktop.com/uploads/64019e91edbea692253f2c210e0060bf.jpg)
If the file is physically damaged, it can still be reconstructed. If the file is damaged, missing or encrypted, there are other ways of recovering it. If the file still exists - and it is not damaged or encrypted - it can be recovered. The actual file to be recovered may still be on the hard drive in flawless condition. When data needs to be recovered, it's usually only the file allocation table that's not working properly. The allocation table is like a book's table of contents, while the actual files on the hard drive are like the pages in the book.
BACKUP AND RECOVERY IN DATABASE MANAGEMENT SYSTEM PDF WINDOWS
For example, the Windows operating system uses a file allocation table to track which files are on the hard drive and where they are stored. Data recovery services can also be used to retrieve files that were not backed up and accidentally deleted from a computer's file system, but still remain on the hard disk in fragments.ĭata recovery is possible because a file and the information about that file are stored in different places.
BACKUP AND RECOVERY IN DATABASE MANAGEMENT SYSTEM PDF SOFTWARE
For example, many desktop and laptop backup software platforms allow users to restore lost files themselves, while restoration of a corrupted database from a tape backup is a more complicated process that requires IT intervention.
![backup and recovery in database management system pdf backup and recovery in database management system pdf](https://www.kelsercorp.com/hubfs/shutterstock_747603733%20(1).jpg)
The data recovery process varies, depending on the circumstances of the data loss, the data recovery software used to create the backup and the backup target media. Other common causes of data loss include power outages, natural disasters, equipment failures or malfunctions, accidental deletion of data, unintentionally formatting a hard drive, damaged hard drive read/write heads, software crashes, logical errors, firmware corruption, continued use of a computer after signs of failure, physical damage to hard drives, laptop theft, and spilling coffee or water on a computer. The most common type of breach occurred when someone sent data to the wrong person. In fact, human error accounted for almost two-thirds of the incidents reported to the U.K. Most data loss is caused by human error, rather than malicious attacks, according to U.K. In enterprise IT, data recovery typically refers to the restoration of data to a desktop, laptop, server or external storage system from a backup. Data recovery is the process of restoring data that has been lost, accidentally deleted, corrupted or made inaccessible.