The RAID recovery work may be easy for some people, but it is actually difficult for most ordinary users. Here, I will make it easy for you by introducing the professional data recovery software - MiniTool Power Data Recovery.
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Zero Assumption Recovery provides a suite of highly effective and thorough data recovery software for Microsoft® Windows™ operating systems. We pride ourselves on having created tools that stand out from the crowd - our do it yourself data recovery software is far more persistent than many of the other solutions on the market. Apr 04, 2018 Data Rescue, quite simply, is the best performing Mac recovery software; especially when it comes to recovering files from a RAID. In the times of a simple failure, Data Rescue can recover your data from a RAID Array with no additional setup, yet still provides the in-depth tools needed to perform recoveries on Arrays that are more.
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If you are using RAID to save data, you should be very careful as data loss can happen even on fault-tolerance combinations. Therefore, RAID recovery is the essential skill for you to do the rescue. Now, I will introduce the professional data recovery software to help you.
RAID recovery refers to the process of data recovery from a RAID array which encounters a problem for whatever reasons (maybe it happens due to uses' improper/wrong actions, a controller problem, the virus attack or something else).
Our free RAID recovery software performs. RAID 0 recovery; RAID 5 recovery; RAID 10 recovery; RAID 6 recovery; RAID5E and RAID 5 with delayed parity; Our RAID Recovery software works with. Hardware RAID disk sets. Producing either the copy of the array or the parameter set. The copy of the array is either mounted directly or post-processed with.
The RAID recovery mainly consists of two aspects:
Here, I will mainly focus on the first aspect.
Let's start with a specific case in which RAID data recovery is needed.
I'm in a bit of a tough spot. I have 3 drives that were configured in a RAID 5 array that I need to get some data off of them. I don't have the original server equipment available or controller card that was attached to them. The array is complete; none of the disks are in a failed state. They were just removed from the previous server.
Maybe you're familiar with this kind of case, maybe you're troubled by such problem right now; either way, it indicates that RAID recovery becomes a topic which can't be ignored.
In fact, if you search 'RAID recovery', 'RAID data recovery' or related keywords in Google, you'll get lots of results within one second.
According to this, you can easily find users' urgent demands for RAID data recovery/RAID file recovery. Taking this into account, I plan to show you in detail how to recover data from RAID with the best RAID recovery software – MiniTool Power Data Recovery (please choose Mac Data Recovery instead if you need to finish RAID recovery on Mac).
After that, I will talk about the causes of RAID data loss and more information about the RAID itself including:
Please skip to the section you're interested in by clicking on the subtitle in the directory and then read it.
How to Recover Data from RAID
When you met RAID data loss in the past, you have no choice but to pay much money for the RAID recovery services (either get help from professional recovery companies or data recovery software).
Now, the good news is that you have a better choice: use MiniTool Power Data Recovery – which perfectly supports common RAID types – to complete data recovery from RAID drives. Please note that I will show you how to complete RAID file recovery on both Windows and Mac platform (you only need a different version of software).
Please note:
Though in RAID 5, the disk array can work well even when disks (over two or more) are damaged, RAID 5 data recovery from damaged or corrupt RAID arrays is still important. That is because the data saved on RAID are often too significant to lose.
Now, I am going to focus on RAID 5 recovery on different platforms.
RAID Recovery for Windows
1. For the purpose of recovering a RAID-5 volume that is damaged, users should choose 'This PC' from the main interface of MiniTool Power Data Recovery.
2. After that, select the RAID 5 volume from which you'd like to recover lost files and click on the 'Scan'.
3. Now, the found files will be displayed one by one in the interface below, in which you are supposed to select all you need to recover. If there're too many files waiting for you to choose from, you could make use of Find' or 'Filter' function to narrow the search scope.
Please note that: if the data need to be recovered are pictures, photos or *.txt files, you can select a file and click on the 'Preview' button to see the real content so as to determine whether it is the one you need or not.
4. When all needed files are selected, you should recover them by pressing the 'Save' button and setting a safe storage location. This method works for both hardware RAID data recovery and software RAID recovery.
Note: if the RAID 5 array with lost data is running on a Windows Server system, you need to buy a Business License since:
RAID Recovery for Mac
If you are running the RAID array on Mac, you need the help of another program – MiniTool Mac Data Recovery. You can try the free edition firstly and then decide to get an advanced edition or not.
But you have to notice that the free edition of Mac Data Recovery only allows you to scan lost files for free. Therefore, if you find what you need after the scan, you have to acquire a license to complete the RAID recovery on Mac.
You should do the following things to complete Mac file recovery:
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In short, what you should do after you found data loss on RAID:
Doubt about the RAID recovery services provided by MiniTool? Please try the free edition yourself.
Raid 0 Recovery Software Mac ProHow Data Get Lost from RAID
As I have mentioned before, RAID offers a high performance to computer users, especially those who're handing with servers. But in the meantime, it is also likely to bring troubles to them. There's a typical point of view – when system crash, virus attack, power failure/surge or other unknown reasons lead to data loss on RAID disk, things will be more complicated than data loss on a single disk.
That is because data recovery from RAID drives seems to be more difficult for ordinary users. They don't know at all what to do or what they shouldn't do at that moment. Some of them are even like ants on a hot pan and would do whatever is said possibly to rescue their RAID.
But what I want to say here is: this is totally wrong! Any operations performed after data were lost from RAID could bring secondary damage and this may result in a devastating result – permanent loss of data. Even the best RAID recovery software or the most professional data recovery experts can do nothing once lost data are overwritten. Well, what are the exact reasons that will lead to RAID data loss? Please keep reading.
6 Causes for RAID Data Loss & 3 Suggestions
Common reasons responsible for RAID data loss:
Please take following measures immediately when failure is detected on RAID disk array:
What Is RAID Exactly
A RAID consists of several cheap disks, so it is a disk group with huge capacity.
The principle is: RAID uses the individual disk to provide data, producing an additive effect so as to enhance the comprehensive effectiveness of the entire disk system.
On RAID, same data will be saved respectively to different places of different disks in the array. In this way, the input and output operations can overlap in a balanced manner to improve disk performance. By taking advantage of parity check concept, RAID is able to read data even when a disk in the array is failed. What's more, data on the failed disk will be transferred to new hard disk after reconstruction and calculation.
As a result, the MTBF (Mean Time Between Failures) is increased due to multiple disks; at the same time, redundant data storage increases fault tolerance as well.
FYI: the full name of RAID is originally Redundant Array of Inexpensive Disks, now Redundant Array of Independent Disks.
Common RAID Types
According to different classification methods, RAID array can be divided into different types. The 2 most important classification criteria are - creating way and function. RAID is divided into following types: software RAID and hardware RAID, RAID 0, RAID 1, RAID 2, RAID 3, and so on. Different RAID levels have different pros and cons.
Raid 0 Software
A brief comparison of software RAID and hardware RAID:
Common RAID levels:
RAID 0: based on Data Stripping, RAID 0 is the earliest RAID mode. It is also the simplest form of disk array which needs at least 2 disks. Though RAID 0 has a low cost, it's able to improve the overall disk performance and throughput.
Deficiency: it does not provide redundancy or ability to fix bugs.
RAID 1: it is also known as disk mirroring, which provides data redundancy. The principle is to mirror data from one disk to the other one. That is to say, when data is writing to one disk, the corresponding image file will be generated and saved on the other disk. This could ensure maximum system reliability and repairability without affecting performance.
Deficiency: only half of the disk capacity is effective, which increases cost indirectly.
RAID 0+1 (also known as RAID 10): it's the combination of RAID 0 and RAID 1. RAID 10 can be simply understood as the mirroring of RAID 0 arrays. It has the following features.
RAID 5: its parity code exists on all disks in the array, so the reliability is increased. The principle is cutting data parity on each disk into pieces and saving them to all disks in the array. This eases the bottleneck problem arising from parity data storage at the price of sacrificing speed.
Deficiency: data transmission parallelism and the design of controller are hard to handle. Why People Set up RAID
3 main purposes of creating RAID array are:
Besides, when users get their hands on deploying an enterprise-class server, RAID is essential for them. Why? It is simple to explain – redundancy is very important for a server system since the drive may be failed and the server may be crashed, resulting from many unexpected issues.
In a word, RAID is necessary in some cases to help people increase disk performance in the way they want. And the creating process of disk arrays is not so complex that most of the users can actually finish by referring to an online tutorial.
Conclusion
Believe it or not, RAID data loss happens now and then due to different reasons. In this case, people will naturally give top priority to RAID recovery. But how? Our suggestion is using omnipotent RAID data recovery software.
Please stop using the RAID and corresponding system immediately, and then get the reliable software to start RAID recovery without any delay. The tutorial mentioned above in 'How to Recover Data from RAID' part is going to get you through the process easily.
Summary: RAID has several levels and each level has its own advantages and limitations. RAID 0, being the basic RAID level, is the most popular RAID array among home users as it can be easily created using tools of the operating system or a standalone controller. RAID 0 offers improved performance but lacks fault-tolerance and redundancy. If one of the member disks fails, all data is lost. But it is possible to do RAID 0 Data Recovery using trustworthy software like Stellar Data Recovery.Download the software now.
Damaged RAID 0 is mostly caused due to human errors, sudden power surges, controller failure, and software failure. Based on the cause of failure, RAID 0 damage can be classified into two categories:
1. Failure of one or more member disk
Implement a professional RAID 0 data recovery tool in such case, where the drive has failed due to logical corruption or bad sectors or where RAID volume is deleted or corrupt. This is a safe and quick way to recover data from a damaged RAID 0 array.
Manual recovery, in case of RAID failure, is suitable for users who are well versed with the concept of RAID technology and have a lot of free time. For a normal user, the manual process is too complicated and if anything goes wrong, entire data is lost forever.
2.Failure of not connected with any member disk
After the RAID controller failure or failure due to software issue, it’s too difficult to pursue using RAID stripe in its original configuration without the original RAID controller or same software/system. In such cases, files and data become inaccessible that can also lead to permanent data loss.
A reliable RAID 0 data recovery software comes handy in such situations. The software uses precise algorithms to reconstruct and recover data from a damaged RAID 0 array configuration as the drives are still working.
Easiest Way to Recover Data from Damaged RAID 0 Array
Manual RAID recovery is not for everyone. Only experienced users may be able to successfully execute the complicated manual RAID recovery. Most users need a simple, feasible, and risk-free RAID recovery solution and that is possible with a reliable and trusted RAID 0 recovery software but choosing a RAID recovery software from a reliable and trusted source is of utmost importance. Stellar Data Recovery Technician is one such tool.
With an intuitive and user-friendly GUI, this software helps the user to skillfully recover data from a damaged RAID 0 array. It’s a standalone tool that doesn’t require a costly hardware controller. The tool offers advanced options that can help a user to recover data from deleted RAID volumes and formatted or logically corrupt RAID 0 drives. Follow the instructions given below to easily recover data from a damaged RAID 0 stripe.
1. Remove the RAID 0 drives from the rack and use HDD enclosure or SATA to USB converter cables and connect all RAID 0 hard drives to Windows PC.
2. Download and install Stellar Data Recovery Technician on your Windows PC.
3. Run the program.
4. Select what to recover – photos, audio, videos, documents, emails or other files and folders. Click ‘Next’.
5. Choose ‘RAID Recovery’ from the ‘Select Location’ screen and click ‘Scan’. A ‘RAID Reconstruction’ window appears.
6. Click on RAID 0 tab located at the top-left corner of ‘Raid Reconstruction’ window.
7. From the listed disks under RAID 0 list box, move RAID 0 disks to ‘Move hard drives up/down for disk order’ list box using left-right arrow buttons between the two list boxes.
8. Use up-down arrow button adjacent to list box to arrange disks in the correct order as they were in the RAID 0 stack.
9. Click ‘Don’t know start sector of drives. Show list of probable start sectors’ if you are not sure about disk order. Then select one or more probable start sectors from the displayed checklist box or use Add Sector button to manually enter and add probable sectors (max 32 allowed) if not listed in the checklist box.
10. Select the ‘Stripe/Block size’ from the drop-down and click the ‘Build RAID’ button.
11. If entered parameters are correct, the software creates a probable RAID construction and the constructed RAID volume details are displayed in the ‘Select Constructed RAID’ window. Click the ‘Show Volume List’ button.
12. In ‘Select Volume to Recover Data’ windows, choose the volume from the listed volumes of RAID 0– from where data is to be recovered.
13. After selecting the RAID volume, click the ‘Scan’ button.
14. If the desired files are not found in the scan results, click on the blue link – ‘Click Here’ – besides Deep Scan text at the bottom of the software window to begin ‘Deep Scan’ process.
15. In the left ‘Tree View’ pane, all recovered folders and files are listed. Use the search box on top-right corner to find, preview, and recover specific files or folders. Alternatively, you can click on the ‘File Type’ tab easily browse and recover the required data.
16. Click the checkboxes of the files or folders that you want to recover. Then click the ‘Recover’ A pop up appears.
17. Click the ‘Browse’ button to select the location where the recovered data will be saved.
NOTE: Again, make sure not to select the drive which was in the RAID array (now connected to your PC). Use an external HDD or internal hard drive with enough storage space to save recovered data.
18. Click the ‘Start Saving’ button to save (recover) the selected files and folders as desired.
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That’s the easiest and safe way to recover data from a damaged RAID 0 array. Even if you don’t know the parameters, this tool automatically determines parameters based on provided probable parameters by the user using advanced algorithms.
Moreover, if the entered parameters are incorrect, this tool helps the user to create a virtual RAID by automatically determining probable parameters. Later, the user can perform RAID recovery of the virtual RAID array. This feature is more useful when the connected RAID drives are corrupt or have a lot of bad sectors.
Conclusion
RAID 0 or any other RAID should not be used for the backup purpose. RAIDs are built for redundancy and help to maintain continuity in business and work. A RAID 0 array is non-redundant and the data loss rate is highest. Therefore, a backup copy of RAID array should be kept in a safe (different) location to help in case of RAID disasters. However, advanced and trusted RAID recovery solutions like Stellar Data Recovery Technician is there to help you when the crisis due to malfunctioning of RAID 0, RAID 5, or RAID 6 strikes.
Raid 0 Recovery Software Mac Free
You might be interested in: RAID 5 Data Recovery
Windows Raid 0 Recovery
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