RAID is short for Redundant Array of Independent Disk, and it is a technology which can provide higher storage performance and data backup competence than a single hard disk by combining multiple independent hard disks (physical hard disk) in a hard disk group (logical disk) in different ways. RAID has many advantages, such as high-speed, high-capacity, safety, and reliability. Besides, it realizes fault tolerance, and it is an intellectualized disk collection with higher fault tolerance competence, higher security, and higher reliability. As a mass memorizer in the modern network system, RAID is widely used in disk server and becomes an indispensable storage device of the solution of high reliability network system, thereby making network system save data reliably and system run normally. 

To promote the safety of system, we must ensure data security first, because every user will store personal data in computer or server. Especially for large enterprise, server data security must be ensured. However, as long as personal computer or server exists on the network, data are in potential safety hazard. Any operating system is not perfect, and it becomes safer after unceasing upgrade. Of course, antivirus program can effectively prevent virus from invading operating system to damage file, but operating system and antivirus program can not ensure data security. On the network, hacker brings more serious influence. Nowadays, hackers do not fear how safe our system or server is or how powerful the functions of antivirus program are, because they can bypass our multiple defense and enter personal computer or server directly to damage data or even system, which may make personal computer or server unable to run normally. If the server of a large enterprise is unable to run, this enterprise will bear heavy losses and serious damage. 

If the operating system is damaged, we can reinstall an operating system to solve the problem. However, can we install damaged data after data damage happens? It is of course not. Certainly, backing up data ahead of time is an effective solution to protecting data, because we can use the backup to restore original data after original data are damaged. Nevertheless, it is difficult to accomplish server data backup successfully since server stores a large number of data. Therefore, we had better use MiniTool Partition Wizard to back up server data. No matter how many data are stored on server, we also can use this partition manager to back up server partition or back up the whole server disk, saving a large amount of time and ensuring data security effectively. After running this partition manager, we will see the following interface: 

This is the main interface of this partition manager. Here, select the partition needing to be backed up. Then, click "Copy" button on the tool bar to enter the next interface: 

Next, select one unallocated space and click "Next" button. 

Then, we can resize the partition used to store data backup by dragging the right triangle in this interface. Next, click "Finish" to go back to the main interface: 

In the main interface, we can see a partition without drive letter, and this partition stores data backup. At last, we need to click "Apply" to perform needed operations. After that, we are successful to back up data. 

NTFS is a new file system released by Microsoft to replace FAT32. Compared with FAT32, NTFS partition has superior security and reliability, so it is adored by the majority of Windows users as soon as it is released. Along with the increasing data amount in computer, data information value keeps increasing and many users have been aware of the significance of data security protection, so the safer and more reliable NTFS becomes the first choice for most Windows users at present when they choose partition file system. What improvement does NTFS partition make? Is NTFS partition really able to ensure absolute security of important computer data? Then we will show the high security of NTFS partition. 

Compared with FAT32 partition, the security of NTFS partition is reflected in the aspect of files and folders encryption function and it is the most commonly used new added security function for NTFS users. Indeed, if we use administrator account to login Windows operating system and encrypt important files or folders in NTFS partition and then logout and use visitor account to apply those encrypted files, we can not delete or modify them because we don't have administrator permission. Therefore, encrypting important files in NTFS partition can reduce possibility of data losses caused by mistaken operations to a large extent. However, in the practical use of NTFS partition, the fact is not as good as imagined. Although NTFS partition has higher security than that of FAT32 partition, it is not perfect. No matter how many protecting actions have been taken in NTFS partition, it can only prevent accidental operation to a certain extent, but for the pervasive computer viruses, it is useless. So what if the important files in NTFS partition are lost due to computer virus attacks? 

When encountering important data loss in NTFS partition, what we firstly think of is how to recover lost data from NTFS partition freely. However, it is not difficult to recover lost data from NTFS partition if we know something about data recovery. We just need to select a best data recovery solution and realize it with professional data recovery software according to practical situations. As to professional data recovery for recovering lost data from NTFS partition, MiniTool Power Data Recovery is suggested, for most data recovery software on the market is able to undelete data only and can not recover lost data caused by other factors while MiniTool Power Data Recovery is a piece of rare multifunctional data recovery software. We can download it from the official website http://www.powerdatarecovery.com/ and install it. After that, launch it and its main interface will be shown. 

In the main window, this data recovery software provides five data recovery function modules according to different data recovery situations and they can satisfy one or several data recovery demands respectively. 
Undelete Recovery: it is specially used to undelete data.
Damaged Partition Recovery: it is used to recover lost data from formatted or damaged partition.
Lost Partition Recovery: it is used to recover lost data from accidentally deleted or mistakenly lost partition. 
Digital Media Recovery: it is earmarked for media file recovery.
CD/DVD Recovery: it is used to recover lost data from CD or DVD. 

As to Windows operating system users, they can quickly perform data retrieval to deal with data losses, because there is a lot of data retrieval software running under Windows operating systems. But as to Mac users, data losses are distressing things because Mac computers are unique. Not only the operating system and hardware device are independently researched and developed by Apple Inc., and plenty of software can not be used before specified by Apple Inc.. Once data losses happen to Mac users, timely Mac data retrieval is hard because it is difficult to find some data retrieval software earmarked for Mac data retrieval, which is an annoying problem for Mac users. But MiniTool Solution Ltd. has provided a solution for all Mac users. That is the miraculous Mac data retrieval software - MiniTool Mac Data Recovery. 

Maybe many Mac users have the doubts why we use MiniTool Mac Data Recovery to perform Mac data retrieval and what its advantages are. As to these questions, we can get answers on the official website http://www.mac-data-recover.com/.
Firstly, MiniTool Mac Data Recovery is data recovery software earmarked for Mac data retrieval. Meticulously researched and developed by the developers of MiniTool Solution Ltd. and then through repeatedly security detection, this professional Mac data retrieval software can guarantee data security when users perform Mac data retrieval. And the data retrieval operations are simple and the Mac data recovery software is easy to operate. Even users who have no data retrieval technology can perform Mac data retrieval easily according to the prompt information. In addition, if the lost data are less than 1GB, the service provided by MiniTool Mac Data Recovery is free, so users need not resort to data retrieval companies and spend a lot of money on data retrieval of a few data. Since MiniTool Mac Data Recovery provides free service, some users may have doubt about its recovery effect. Actually, there is no need to worry about it. As MiniTool Solution Ltd. has hammered away at research on data recovery technology for many years, it has a deeper research in data retrieval area. Compared with other Mac data retrieval software, MiniTool Mac Data Recovery released by MiniTool Solution Ltd. possesses consummate technology and has more powerful recovery abilities. It is able to recover accidentally deleted data in Mac and recover lost data resulting from formatted partitions or lost partitions caused by virus infection. Even if we encounter the serious data loss situations in which the whole partition is lost, MiniTool Mac Data Recovery can perform Mac data retrieval perfectly, so its recovery ability is incontrovertible. In conclusion, these are the reasons why we use MiniTool Mac Data Recovery to perform Mac data retrieval when data losses occur in Mac. 

In order to show that the operability of MiniTool Mac Data Recovery is very simple and convenient, we'll demonstrate the recovery operations in detail (Here, how to undelete files is demonstrated.). Firstly, run the Mac data recovery software. 

In the main interface of the Mac data retrieval software, select the function module "Undelete Recovery" which is specially designed for recovering deleted data. 

In this interface, we need to click "Recover" to scan the Mac partition where the lost data are. After the scan is finished, we can view the lost files. 

Then select the files that will be recovered and then click "Save Files" to store them. After that, we'll successfully recover the accidentally deleted files. 

After operating system crashes, many users want to find reason for crash and method for data recovery. Operating system often crashes, but it is difficult to find reason. A professor in Department of Computer Science of IMT once said the primary reason for system crash is that software developers try to release their products quickly at internet time. As a result, product quality and reliability are influenced, thus leading to system crash. Thus it can be seen, operating system crash is almost caused by software failure. That is to say users need to deal with data loss resulting from soft errors if they want to recover lost data from crashed computer. At this time, professional data recovery software is the best choice. However, since common data recovery software can not run when operating system crashes, users should select bootable CD of MiniTool Power Data Recovery.

Firstly, users need to visit the official website of MiniTool Power Data Recovery http://www.powerdatarecovery.com to get bootable CD. Then, launch software to recover data with bootable CD.

This interface appears after we open the professional data recovery software. To recover lost data from crashed computer, users should select corresponding functional module according to practical situations. Then perform data recovery according to detailed prompts. At last, save recovered data to a safe place (note: since operating system can not run, users had better save recovered data to external storage device like mobile HDD and U disk to avoid unnecessary troubles). After that, the work to recover data with bootable CD is finished thoroughly.

With wider and wider application of digital camera, digital picture loss happens more and more frequently in digital camera. No matter it is because of users' accidental deletion, accidental formatting, or virus attack, they all threaten security of digital pictures in digital camera a lot. Once digital picture loss happens, every user will feel very frustrated. Most users feel difficult to find a suitable solution to recover lost pictures. Next, let me introduce you an excellent solution. 

Maybe quite a few users will feel curious about digital picture recovery. Can lost pictures really be recovered? The answer is absolutely yes. But to recover lost pictures, the premise should be that deleted pictures have never been damaged or overwritten. Therefore, when digital picture loss happens, you shouldn't perform any operations to the storage devices anymore, avoiding overwriting. And then you can use a piece of professional data recovery software to recover lost pictures. It is strongly suggested using MiniTool Power Data Recovery which is developed by famous MiniTool Solution Ltd.. This software has a special functional module for recovering digital media files, and it can scan lost pictures fast and recover them. If you still doubt the performance of MiniTool Power Data Recovery, let me show you a presentation of using MiniTool Power Data Recovery to recover lost pictures. 

Firstly, visit http://www.powerdatarecovery.com/ to download MiniTool Power Data Recovery for free, and install it to your computer. Connect storage device of your digital camera to the computer, and launch MiniTool Power Data Recovery: 

This is the main interface of MiniTool Power Data Recovery. We can see there are five functional modules. Here let's click on "Digital Media Recovery" that is specially designed for recovering lost media files. 

In this interface, we can see a list of all disks and partitions in the computer. Select the partition which represents external storage device, and click "Full Scan" button to scan that partition. Wait for a few minutes and you will see the next interface: 

In this interface, we can see all lost media files. Check the ones to be recovered, and click "Save Files" button to save recovered pictures to a specific location. Then all work of recovering lost pictures is successfully finished. In addition, you should not save recovered files to the original partition so as to avoid overwriting. 

With these simple operations, we have accomplished digital picture recovery successfully. And this is only the "Digital Media Recovery" functional module of MiniTool Power Data Recovery. You can get to know detailed information about other four functional modules of MiniTool Power Data Recovery. I believe you'll certainly be surprised by its powerful performance. You can master data recovery easily since you have a MiniTool Power Data Recovery. 

With the continuous development of hardware, traditional BIOS has become an obstruction for hardware advancement. Therefore, many famous enterprises such as Intel, Microsoft, and AMI jointly developed a new type of main board operating system namely UEFI. This kind of operating system not only has great competence of error correction and makes up the defect that BIOS codes run quite slowly but owns graphical operating interface which simplifies operations. Therefore, many Windows 8 users have installed UEFI. But disappointingly, UEFI and Windows 8 users are often troubled by Windows 8 partition management since system built-in disk management tool has big defects in function. Under this situation, we believe most UEFI and Windows 8 users hope to find a partition magic which can help them accomplish good Windows 8 partition management. Now, their desire can be realized very easily. With the maturity of software technology, famous Canadian software development company MiniTool Solution Ltd. has developed a professional partition magic after great efforts, namely MiniTool Partition Wizard. Through using this partition magic, UEFI and Windows 8 users can accomplish Windows 8 partition management quite easily and securely.

If UEFI and Windows 8 users want to manage Windows 8 partition by using this professional partition magic, please download and install it to computer at first. Here is official website http://www.partitionwizard.com. After installation, please run it to open the following interface:

This is the main interface of the professional partition magic. To manage Windows 8 partition, we need to select and right click the partition which needs managing. Then, multiple executable functions will appear in shortcut menu. These functions can help realize almost all Windows 8 partition management. As long as UEFI and Windows 8 users select the most suitable function and take operations according to prompts, Windows 8 partition management will become extremely simple and successful. For instance, if UEFI and Windows 8 users want to extend partition, they should select the function "Extend Partition" and perform the rest operations as told.

Hard disk, being an integral part of computer, is the main storage device of computer data. It features one or more rotating rigid platters on a motor-driven spindle within a protective enclosure. Data is encoded magnetically by read/write heads that float on a cushion of air above the platters. is the 512-byte boot sector that is the first sector of a partitioned data storage device such as a hard disk. The boot sector of a non-partitioned device is a volume boot record. These are usually different, although it is possible to create a record that acts as both; it is called a multiboot record. The MBR is not located in a partition, it is located at a main boot record area in front of (with a lower LBA sector number than) the first partition. In cases where the disk has a BIOS overlay or boot manager installed, the partition table may be moved to some other physical location on the drive; e.g., a partition manager often places a copy of the original MBR contents in the second sector then hides itself from any subsequently booted OS or application, so the MBR copy in sector 1 is treated as if it were still residing in the first sector. MiniTool Partition Wizard is the very partition manager to fix MBR with powerful functions.

Disk management functions of MiniTool Partition Wizard
1. copy entire disk
2. delete all disk partitions
3. wipe disk data and offer enhanced privacy protection
4. recover lost partition and deleted partition
5. view disk properties
6. detect bad track
7. rebuild disk MBR
8. convert disk type
9. convert MBR disk to GPT disk
10. convert GPT disk to MBR disk
Above is part of disk management functions provided by MiniTool Partition Wizard. User could download MiniTool Partition Wizard at MiniTool Partition Wizard Download Center to find more excellent funtions.

Since the operating system is unavailable, user needs to employ MiniTool Partition Wizard Boot CD to resolve boot problem which has the same operation with MiniTool Partition Wizard. The following is demonstration on how MiniTool Partition Wizard fixes MBR.
User would meet following interface after running MiniTool Partition Wizard. 

Select and right click the disk to be rebuilt and then click "Rebuild MBR". 

Lastly, click "Apply" in this main interface to execute pending operation, fixing MBR successfully.