Get to Know What Causes SQL Server Disasters Along with its Preventive Measures

It is important to take sufficient disaster preventive measures for the safety of SQL Server as it contains huge amount of our crucial data. Besides, users got to have a clear idea about the disasters also for prevention and recovery. To meet all these requirements of SQL Server user, we have compiled some of the crucial points about SQL Server disasters and preventive measures. Read on to learn what are considered as disasters for the SQL Server and how they can be prevented.

SQL Server Disasters and Preventive Measures

By the term Disaster, we commonly understand natural disaster file flood, fire, earthquake, etc. However, in the case of SQL Server, disaster can mean any situation that causes production data loss or loss of productivity resulting in downtime. Here is the list of SQL Server disasters and their preventive measures:
1. No Backup This is an absolute no-no for all SQL Server. If you own a database, not having its backup is the biggest mistake. A regular good backup can save your back at the time of devastating database corruption or malicious data deletion.
Preventive Measures:

• Make sure to have a complete backup of your database at a regular interval.
• Also, ensure quick and easy restoration of the database backup.
• Regularly testing the backup and restoration facility is also important.

2. Lack of Security Not having sufficient security measures for the application, the database becomes the gateway to a disaster. These days, even the biggest security measures can be broken, so staying without security is completely out of question.
Preventive Measures

• Take maximum security measures possible to secure the database, infrastructure, and applications.
• Always remain conscious of new threats and vulnerabilities.
• Be careful about using the hard to guess passwords.

3. Neglecting Signs and Errors Sometimes before a disaster takes place, it shows certain symptoms and signs. If there is any type of error, ignoring them would be a foolish thing to do. Always stay alert about signs and errors of SQL Server, do not ignore them.
Preventive Measures

• Make arrangement for capturing the errors and signs and reporting those to a group of people.
• Do not presume symptoms as the false positive and do check every error.
• If there is false positive, fix your warning system.

4. Excessive Expectations without Infrastructure Make sure if your infrastructure is capable enough to meet your requirement.
Preventive Measures

• If you truly need 24x7 support from your database, make sure to provide it with proper resource, connectivity, and people.
• Conduct some research to gather knowledge about the requirement for such performance.

5. Alteration without Consideration Changes cannot be avoided as these are bound to happen in the course of time. But before making any drastic changes to your database design, you need to consider all of its possible impacts on the database and the users.
Preventive Measures

• Properly calculate the positive as well as the negative impacts of the changes you will make.
• If someone more experience is there in your company, share your ideas first with them to get the bigger picture.

6. Not being Prepared for SQL-Specific Attacks Apart from the common virus and malware attack, there have been some SQL Server specific attacks in past years. These attacks had an eye-opening impact on the SQL users and every victim now knows well about the importance of protecting their SQL Server database.
Preventive Measures

• Always use the updated service pack and security patches of SQL Server.
• Review codes to make sure that there is no scope of attack.
• Avoid using Dynamic SQL and also avoid installing SQL on default port

7. No Rollback Plan Rollback plan is the idea that often gets ignored during deployment planning. The situation gets worse when there is also no backup of database, DDL, and DML.
Preventive Measures

• Try to make some time for a balanced rollback plan.
• In the absence of such plans, make sure to have database backup.
• Also, code review and testing should be error-free.

Note- If your SQL MDF file is found to be severely corrupted then you go for MDF Recovery software for quick recovery of MDF file.

Let’s Conclude

For every SQL Server DBA and user, it is necessary to remain prepared for the disasters that can occur. In order to make them aware about the possible problem, here we talked about some major SQL Server disasters with preventive measures. Hope that readers have gathered the basic knowledge about SQL Server disasters and will be able to take the measures mentioned.