Five basic principles for the backup of client data

Column: Tips and advice

By Isaac M. O'Bannon

From April / May 2010 problem.

Since the computerization of America in the early 1980s, technology experts have been preaching Gospels security data, in particular data backup and anti-virus systems.

You know why data backup is important, of course, but how vigilant are you practicing what you know is a critical problem? if your computer or server crashed right now, how much of your work would lose you?A day?A week? plus?

If your computer systems were damaged by the weather, fire or theft 1 April next year, survivraient you tax season? is your professional reputation, your relationships with your customers and you're your circulation survive to see next year? backup files of your computer and have a way to quickly retrieve are important.

WHY LOCAL BACKUP IS NOT SAFE
There were many variations on the backup data over the years, most...

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Database backup and restore principles

Databases are the technical basis of the most data repositories in the world today! Downtime in transaction of processing systems is crucial to all organizations with a high possibility of operations can shutdown. Database management system (DBMS) must recover errors without data loss, and preferably in a short time. Therefore the State database must be restored it in, was shortly before a problem stopped all database processing.

Database backups often occur; however, always provisional data missing you, to update the database between backup jobs intervals!As shown in the illustration below, a completed transaction on the active database and a transaction journal has copied installation.If a database backup is performed the transaction list is marked with a date stamp to point out if recovery is required.

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