Data Backup Archive

With cloud technologies developing constantly, many users start preferring to store data to cloud. Then, you may wonder whether it is necessary to back up the cloud data. This article will focus on this issue to have a discussion.

Many users think that their data stored in the cloud is unable to be corrupted or lost in that the data is immune from all the on-site events. Hence, they think, it is not necessary to back up the cloud data. Is this idea right? Thereinafter, we’ll tell you the answer.

Is It Necessary to Back Up Your Data Stored in Cloud?

Public Cloud

As we all know, there are a lot of cloud services available in today’s market. Such cloud services belong to public cloud. It means that the cloud is controlled by the service providers actually, instead of oneself. Such kind of cloud has the following risks.

  1. Cyber Attacks: Now that cloud is virtually controlled by the service provider, the security of your cloud data cannot be guaranteed. Also, due to the cloud’s publicity, senior cyber hackers can attack and even destroy the cloud data
  2. Human Errors: Although your data is stored in cloud, you still can manage it in the local application. Therefore, you still can make some mistakes on your cloud data, such as accidentally deleting files.
  3. Server Damage: Multiple users mistakenly think that their data is stored in cloud, without involving physical local machines. It is a totally wrong idea. As a matter of fact, the data is stored in the local servers of the service providers. So, the local servers are also in the risk of crashes, physical damage, etc. If the servers get corrupt, the data can be compromised too, like corrupt PST

Private Cloud

Aside from the public cloud provided by third party vendors, users can build the personal cloud via Network Attached Storage (NAS). You can add hard drives to a NAS device, and then connect the device to internet to share data via network. In this way, the cloud is completely controlled by you. Yet, it still has its own flaws.

  1. On-site Disasters: Network Attached Storage (NAS) device is usually placed in your office or home. Once disasters, such as flood or fire, strike the office or home, the device will be corrupt. And your data will suffer as well.
  2. User Mistakes: Similar to the public cloud, human errors are inevitable, too. You may accidentally format the hard drive in the NAS or delete any files. So, if you are not careful enough, your data is not 100% protected, either.

In a nutshell, no matter you store your data in public or private cloud, the data is not 100% safe. Therefore, it is still essential to back up the cloud data.

Author Introduction:

Shirley Zhang is a data recovery expert in DataNumen, Inc., which is the world leader in data recovery technologies, including mdf recovery and outlook repair software products. For more information visit

You can select to back up your machine from the file level or image level. They are two totally different backup solutions. And both of them have pros and cons. Now, this article will guide you to decide which one is a better choice for you.

In order to avoid data loss, you should back up your machine at regular intervals. Before backing up, you have to make some decisions, including the storage media for backup, the backup software as well as the backup solutions – file backup or image backup. Now, in the followings, we will discuss about the pros and cons of file and image backup and show their appropriate situations.

File vs Image Backup: Which Is a Better Choice for You?

File Backup

As its name suggests, file backup refers to backing up the files or folders, such as your documents, photos, music and all kinds of other common files. This is much simpler than the image backup. In this backup, you need to select individual files or folders to back up. And in restoration, you ought to select as well.


In comparison, the file backup can be quicker in that it doesn’t need to back up the operating system. Also, restoring files, such as PST recovery from backup can take less time as well. Besides, file backup is less expensive.


However, it also has drawbacks. One of the most annoying shortcomings is that it only contains files or folders, not including the machine system. Thus, it is unable to back up or restore the entire machine. Once the machine crashed, the backup is not very helpful in system and application restore.

Suitable Cases

If your machine is only mobile phone, tablet or laptop, you can select file backup. It’s because such machines usually don’t have complex system configurations. So, even though its system goes down, it is very easy to reinstall it. What you require urgently is the file restoration from the backup.

Image Backup

Image backup comes down to backing up the whole machine’s operating system, files and applications. It’s an image, a “snapshot” of the machine drive, consisting of block-by-block content of the drive.


In contrast, image backup is much more complete. Thus, if your machine crashes, you don’t need to separately reinstall the system and then restore backed-up data. You can simply restore the image to the machine. It is quite useful for physical to virtual conversion.


Since such backup covers much more data than file backup, it will take more time to back up and restore and will take up more storage space. Besides, it is knotty in case that you only want to extract some files to restore.

Suitable Cases

In terms of servers or computers running complex systems, you should select the image backup. It is because such devices usually contain complex settings. Once they get corrupt, it is quite troublesome to reinstall and reconfigure them. But, if you have image backup, you do not need to reinstall or reconfigure. They can be quickly restored from the image backup with effortless ease.

Author Introduction:

Shirley Zhang is a data recovery expert in DataNumen, Inc., which is the world leader in data recovery technologies, including recover sql and outlook repair software products. For more information visit

It is known that reformatting a machine will erase everything in it. Thus, before you reformat your computer, it is essential to back up some important data. This article will expose the 6 most important kinds of data you must back up.

Reformatting your computer will not only reinstall the operating system but also erase all the data on the computer. Therefore, if you do not make an updated data backup before reformatting PC, you’ll suffer data loss. Now, in the followings, we will list out the 6 top kinds of data you must back up in the process.

6 Kinds of Data You Must Back Up Before Reformatting Your Computer

1. Documents, Movies and Music

Generally, when it comes to important data, most users will firstly think of their significant documents, like Word documents, Excel workbooks, PPT files, Access reports, etc., and some personal data, like movies and music. Therefore, you need to back up your documents, music and movies before formatting your PC.

2. Applications

Maybe your computer has installed some applications whose installation files are difficult to find. In order not to lose these rare programs, you’d better back them up as well. For instance, you should back up your purchased game files, such that you can rapidly restore them without repurchasing or re-downloading them after reformatting.

3. Drivers

Your computer must be installed with multiple drivers, including network card, motherboard chipset and so on. They are extremely important. Without them, it is very likely that your computer hardware, such as mouse or keyboard, may stop functioning as normal. Thus, before formatting your PC, back up the drivers!

4. Email Client

Nowadays, email has become a common communication approach. Hence, maybe you have installed an email client on your PC, such as Microsoft Outlook. In it, you may have created and stored a lot of emails, contacts, appointments and tasks. So, before formatting your PC, you should back up the email client, too. For example, in terms of MS Outlook, you can just back up the Outlook PST file; so that you can easily recover PST data after reformatting PC.

5. Browsers

Almost every computer users will search something on their web browsers every day. Therefore, absolutely, there must be a lot of data in your browsers, such as bookmarks, security certificates, and other browser settings. So as to reconfigure your browser more easily after computer reformatting, you should back up them and take screenshots of all pages about Browser settings.

6. License Keys

If you’ve installed some software whose full version demands a paid license, you should also back up the license keys. Otherwise, without the keys, you will have to repurchase them, which is surely what you don’t expect.

Author Introduction:

Shirley Zhang is a data recovery expert in DataNumen, Inc., which is the world leader in data recovery technologies, including corrupted mdf and outlook repair software products. For more information visit