Causes of Database Failure: What to do in a Data Recovery Emergency
No database administrator likes to receive a message that flash “There has been a database failure”. One whole company depends on the database, as soon as one receives such a message all they can think of is to drop anything and everything and rush to the office immediately to fix this failure. The company’s livelihood relies on their ability to get back the data. There are various types of database failure. The risk of losing data is always there but with time and patience, you can protect your company and retrieve all the data back after a failure. However, if the database failure is complicated, then you might have to hire a professional data recovery service to restore lost data without the risk of losing that data forever. Let us find out some most common database failures and how to deal with it.
When your system crashes the machine makes sure to tell you time and again that you need to call someone for help as Mayday has arrived. A system crash refers to some kind of bug or hardware malfunction in the operating system. Such crashes lead to loss of content that is present in volatile storage areas of the machine like main memory, cache memory, RAM, etc. A system crash can occur for various reasons. They bring the whole system to halt. It is, therefore, advisable to provide proper maintenance and security to the host system. You should take care of the protocols and network should promise minimal downtime. If you can maintain everything on time, you can easily restore the database.
Media failure is one of the most dangerous types of failure. If you don’t take backup on time, it becomes almost impossible to recover data. Recovery from media failure takes more time than any other system failure. You cannot access the database system for several hours unless a recovery is complete, this makes the failure very risky. A disk controller failure or disk head crash are few typical examples of media failure. All the data that is stored in these disks can be lost at the time of a media failure. A DBA must plan an appropriate backup procedure and provide adequate malware protection to protect your system against media failure.
NETWORK FAILURE/ SOFTWARE FAILURE
When the system exceeds its resource limit, some bad input or software errors can occur. It can bring the processing of transaction to halt followed by a database failure. In order to save yourself from such a failure, it is recommended that application software errors are minimized at the time of conception and software engineering process. It is the job of a developer to put everything in place during the design and architecture of the software. Any malicious code may exploit vulnerabilities associated with programming software or known human software coding. This interrupts the normal operations of the database system.
Database recovery is a complicated process, a damaged operating system corrupts a database directory and it becomes extremely difficult to recover all the data back. Sometimes you have to delete and reinstall the whole OS, this may lead to permanent loss of data. To avoid a situation of permanent data loss, make sure to call the call the experts for database recovery. They have a number of years of experience in recovering various databases that are based on different systems, including Microsoft Exchange, SQL, MySQL, Oracle, SharePoint, Filemaker, and more. Therefore, stay alert about your system’s health and call a data recovery expert to avoid data issues down the line.