SQL Server Database Recovery

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SQL Server Database Recovery
 

Creating Effective Computer Disaster Recovery Plans

Whether from a destructive virus, a clever hacker or an unforeseen event such as a flood or fire, there may come a time when your computer database’s security is threatened. The following tips will help you to decide on a backup system that can prevent you from loosing all of your precious computer data.

Computer Disaster Recovery PlansA Differential Backup Plan
A differential backup contains all of the files that have changed since your last complete backup. This is where the system gets its name: it backs up every different file since your last full backup. Of all of the computer disaster recovery plans, a differential backup’s main advantage is that the restore time is quite short compared to other backup methods. Also, this backup system requires only two backup container files to perform a complete restore and this is also why the process is reasonably short. The one drawback of the differential backup is that if you use it too many times, you may find that your backup system becomes larger than your full backup.

Full Backups
A full backup is the basic starting point for all of the other backups and contains all of the data from the folders and files selected to be backed up. Choosing full backup allows you to access all of the stored files and folders and frequently using this method results in faster and easier restore operations. As the full backup saves all files and folders this method will take longer than other backup types and you will undoubtedly find that restore jobs take longer.

Transaction Logs
A transaction log is a manual or automated record of all updated changes to data files and databases. On a regular basis the changes in the transaction log are written to a disk. This log is circular meaning that eventually it is overwritten. The best transaction logs show all changes made to the database with the name of the person who made the changes. An effective transaction log plays a crucial role in the replication and recovery process after an unforeseen computer problem.

Before Purchasing…
When you have selected one of the computer disaster recovery plans that is best for you, take the time to research the company you are buying the software from. Be sure to go with a reputable manufacturer that produces quality products. You want to make sure that your recovery program is as good as it can be. As a final note, check to ensure that the program is read-only as this will prevent it from trying to write over the drive you are trying to recover.