Website data backup (Data backup) can be understood as the act of copying / backing up all the content and important original data of a website in case the website has problems or when it is necessary to switch to another website. For many business websites, according to the author, data backup is considered indispensable, because all the data and data that the business has built for a long time, if unfortunately lost, will affect serious business.

Viewing: What is Incremental backup

Backup Du Lieu Website

Usually, when backing up data, people will copy all existing information and data to another place such as hard drive, stored on the Internet.. and this operation needs to be done regularly after a while. It takes time to update data, not wait until something goes wrong (broken server, hacked server, technical error, etc.), then you start thinking about backing up your website, it’s too late now and your data is a lot. possibility no longer holds.

That’s why when designing websites, many units always uphold the importance of the Copy / Backup function and emphasize it as an information that needs to be provided to customers. Many technology experts in the world today also recommend that businesses use professional website design services that support website data backup as well as security.

Why is it necessary to backup data regularly

? Website data is confidential information and directly affects business operations of enterprises, and these data are not fixed but change. , updated regularly based on user actions or weekly and monthly sales.. Some important types of data in your website that you cannot lose are:

Customer database: Imagine if you lost all website data including contact of more than thousands of customers with diverse purchasing history, real potential customers as well as big customers. that you can be sure they will come back for more.

Information about products and services: Usually when designing a website, the web design unit usually only supports you how to use the interface as well as upload products and services to the main page. As for the entire process of updating products and services, you will perform in stages, update new services … And this data is as much and as important as customer data. Imagine if you lost data for more than a year and had to re-enter it from scratch.

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Photos, media: If lost, it will take a long time for you to recover from the beginning.

Article information, URL: This is an important data source that directly affects the SEO process of the website and the URL Index on Google’s homepage. And this process requires a long time, if lost, your business website will surely suffer a great loss to build from scratch.

In case you need to backup/restore data

The purpose of backing up website data is the ability to bring this data back to life after fixing an error or the website has a problem. And the backup or restore of data is usually done to avoid the following cases:

Unexpected incidents such as system failure, fire, equipment damage The website is illegally compromised or maliciousDue to personal wrongdoing leading to the impact or worse, the loss of all data

Therefore, backups of website data should be kept in a safer place. If it is electronic items such as hard drives, CDs, USBs, they should not be stored in places prone to damage, fire and explosion. If you choose online data backup channels, choose reputable addresses that will ensure accurate backups and return the right information whenever you need it.

How to backup basic website data

Manual data backup:

Manually backing up website data is a bit complicated, but if you know how to use it carefully, you will avoid some of the more common errors or obstacles when using automatic backup support tools.

With this form, you will directly backup your website data from the main device to another device for storage based on data traffic and security requirements. The devices you can use to store backup data can be servers, VPS, hard drives, USB…

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Backup website data thanks to tools and software:

This form can be likened to you using tools and features to help your website backup and backup data AUTOMATICALLY. If you are not good at technology, you can ask professional website design services to install and support this part for you.

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The data backup in this form is completely done automatically by installing on the backup device and making connections between the main device and the backup device so that the website backup is automatically performed periodically. However, to perform this website data backup, you need a transmission line as well as a data storage device with large traffic.

The Backup Format

What is Full Backup?

Full Backup means backing up all your existing data

Eg:

You have a directory in which there are 4 data files : 1 2 3 4

When you configure Full Backup, the backup software will back up all 4 data files: 1 2 3 4

Advantages of Full Backup:

Easy data recovery. When you need to restore, it will restore all data of the day. Full Backup. High security for data.

Cons of Full Backup:

Long backup time. The more data, the longer the backup time.Consume storage space. If you run a full backup every day, it will take up a lot of hard drive space. For example, if a 1TB hard drive is fully backed up every day, it will need 7TB of storage in 1 week. The investment cost of storage equipment is large.

What is Differential Backup?

Differential Backup is a backup of what has changed since the last Full Backup

For example: (Calculated in case the data files have not changed)

In the directory there are 4 data files: 1 2 3 4

When configuring backup: Full Backup on Sunday,Differential Backup on Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday.

If the second in the directory has a file number 5 : 1 2 3 45, then Differential backup will back up file number :5

If the third folder in the folder has the file number 6:1 2 3 456–> Differential backup will back up the changes compared to the latest Full Backup date, which is Sunday, so it will back up the file number5 6

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Likewise for the following days.

Advantages of Differential Backup:

Faster backup time Smaller backup capacity than Full Backup. Save storage space Data recovery speed will be faster than Incremental Backup

Disadvantages of Differential Backup:

When you need to restore data, you need 2 backups: 1 FileFull Backup last time and 1 FileDifferential Backup at the time you need to restore.

Specific cases as in the example:

Let’s say you need to restore files to Tuesday – you need Sunday’s Full Backup and Tuesday’s Differential backup

What is Incremental Backup :

Incremental Backup is a backup of what has changed since the last Incremental Backup

For example: (Calculated in case the data files have not changed)

In the directory there are 4 data files: 1 2 3 4

When configuring backup: Full Backup on Sunday,Incremental Backup on Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday.

If Monday in the folder has an additional file number 5 : 1 2 3 45, then IncrementalBackup will back up file number :5

If Tuesday in the folder has an additional file number 6:1 2 3 456–>IncrementalBackup will back up the changes compared to the last IncrementalBackup date is Monday, so it will back up file number6

Likewise for the following days.

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Advantages of Incremental Backup:

Fastest backup time Smallest backup capacity

Cons of Incremental Backup:

When you need to restore data, there must be enough backups: The last Full File backup and all FileIncremental Backups from the time of Full Backup to the time of need to restore Restore time is longer than Differential Backup

Specific cases as in the example:

Let’s say you need to restore files to Tuesday – you need Sunday’s Full Backup and Monday’s Incremental backup and Tuesday’s Incremental backup

Because of the advantages and disadvantages of each backup method. Depending on the current state of the system, you can choose the most optimal solution for yourself.