Tech Talk: Data Backups and Recovery

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Tech Talk: Data Backups and Recovery
by Marketing


Protecting your data and preventing its loss can’t be done without a backup and recovery plan. Often referred to as organizational rehabilitation, tech support uses backups to store and restore historical information and ensure its security.


To safeguard against the risk of data loss due to primary hardware or program malfunction, a suitable backup copy is stored in a separate device or medium, such as tape, from the preliminary data.



Definition of Backup


The word backup involves data security, meaning backups of virtual and physical structures, along with the information and applications installed in those systems. It is possible to compare copies against anything that may happen in the future with an insurance policy. The backup’s initial aim is to retain a copy of the IT that helps build an enterprise.


The pace of making backups will vary according to the data priority, as if the data is critical, it should be backed up regularly. Monthly and quarterly backups are the same as monthly backups, but they are only completed on the last day of the month or quarter.


With advancements in technology, backup is created over the cloud as it is very viable storage and straightforward management.



Definition of Recovery


The database recovery mechanism is an integral component of a database management system or information system that guarantees the data’s integrity even after failure. The agency is responsible for ensuring the transaction processes’ fulfillment, documenting the database results on a permanent and separate basis if a transaction is made to the DBMS for execution.


However, if all of the transfers fail in the middle of any operations, what will happen? Data recovery is a vital task in these cases and is the best way to save missing data. 


Here the fault could be in any manner, such as device collapse, transaction malfunction, circumstances of exception, disk failure, disasters, or market control regulation. 


Any of the scenarios causing downtime would need recovery. Several recovery processes such as caching, shadowing, before and after images of the data item, Steal/no-steal, force/no-force policies, UNDO vs. REDO recovery, etcetera.



Backup vs. Recovery


The key difference between backup and recovery, in a nutshell, is that the former is a snapshot of original data that can be used in the event of a storage malfunction. In contrast, recovery refers to the method of returning your database to the right (original) state after a failure happens.


Backup refers to a representative backup of documents, as mentioned earlier, which includes critical elements of a database, such as data files and control files. A backup of the entire database is needed because accidental database errors are inevitable. Two primary forms of backup arise:



Physical Backup


Physical database files such as data, control files, log files, and historical redo logs are copied here. It is a copy of the files that store information from the database in another location and forms its mechanism.



Logical Backup


It includes the analytical data that a database extracts and consists of tables, methods, views, functions, etc. It is not recommended or helpful to retain a logical backup alone because it only offers structural details. 


On the other hand, recovery lets you return the database to the proper state in a malfunction. It increases your database’s stability, and after the unexpected collapse helps the database return to a consistent form.


Recovery of the servers using log-based recovery is entirely possible. A log is a document sequence that contains records of transactions. When saved in secure storage, a list of your transactions allows you to restore your database after the loss. It provides information on executable transactions, transaction states, and modified values. These bits of data are now stored in their orders of execution.



Security Backup Plan: You better be sure to have one


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A backup aims to create backups of the information that you can restore when your primary information fails. Several problems, like program or hardware breakdown, a human-caused incident, computer theft, cyber-attacks, and unintended data deletion, can lead to primary data breaches. Ergo, backup copies allow you to retrieve the data from an earlier point in time to help your organization recover quickly.


To avoid manipulation or destruction, saving a copy of the data on a different medium is essential. Like a tape drive, disk storage medium, or cloud storage container, the extra medium may be as critical as a USB stick or external drive or more extensive. You may either position the alternative medium in the same place as your primary information or store it remotely. If you are situated in an area with a high possibility of weather-related events using a remote location is justified. 

To reduce the amount of data missing between backups, make your backup copies on a daily and reliable basis for best performance. This suggests that when restoring from a malfunction, the more time between your backup versions, the more risk for data loss you face. So do not wait months for your backup copies to be made.





Backup provides an ability to recover, while recovery is intended to ensure the transaction and data’s atomicity. In tech, everything crashes. Save your company and client information. You can go even further by data cleansing, removing duplications or unuseful information. If you need your data fully managed or moved to a new solution, it’s vital to have a technical support team with expert-level knowledge. In short, your tech support needs to have your back