Top Tips On How To Recover Data From Hardware RAID Easily
- Chapter 1 – How to Recover Data from Hardware RAID
- Chapter 2 – Why We Are Using RAID
- Chapter 3 – Bottom Line
- Related Articles
- User Comments
RAID helps to improve the transmission rate and provides fault tolerance, so it is widely used throughout the world. A lot of enterprises choose RAID to ensure the security of important data. Yet, data loss still happens on RAID disk. And according to statistics, among all the disk array environment data disasters, RAID information loss accounts for a large proportion.
No matter which the reason is that leads to RAID data loss, the first thing people will think of would be RAID data recovery. Today, we'll put our focus on how to recover data from hardware RAID. People who are suffering from RAID data loss dilemma are strongly advised to read this article to figure out how RAID file recovery can be finished and how RAID data loss issue is generated.
After reading the following chapter 1, you'll be able to handle with RAID data loss problems independently under the help of MiniTool Power Data Recovery – a piece of RAID recovery software enjoys a high reputation. And in chapter 2, we'll mainly show you two things: one is the differences between hardware RAID and software RAID and the other is the reasons for RAID data loss.
Chapter 1 – How to Recover Data from Hardware RAID
You ought to get MiniTool Power Data Recovery to scan the RAID disk without any delay once your important files/folders are lost due to the following reasons:
a). Careless deletion: files are deleted from RAID disk by mistake and then cleared from recycle bin. One or more partitions are deleted accidentally during disk management.
b). Partitions damage: a partition may be damaged due to virus attack, system crash or other reasons. And the file system of it may become RAW sometimes.
c). Reformatting: reformatting a partition or the entire disk will destroy all data inside, so you'll also lose access to them after a wrong formatting action.
In this part, we'll teach you how to recover files from RAID drive after files were missing from a hardware RAID. First of all, you should download the MiniTool Power Data Recovery Free Edition V7.0 and then install it on the computer (not install it on the drive which includes files to recover).
Recover Data from A RAID Array after Accidental Deletion
Step 1: start the RAID data recovery software you have just installed and then choose "Undelete Recovery" from the starting interface by clicking on it.
Step 2: select the partition or the disk (if it only has one partition) from the partition list in software and then press "Scan" button to perform a quick scan.
Step 3: the found files and folders will be listed in the following software interface right after the quick scan. When you are seeing this, you should browse the files and folders (by opening them one by one) in order to pick out the files you really need.
Then, check all the files you need to see whether the total size of them exceeds 1GB:
b). if the total size is larger than 1GB, you should get a license to upgrade the RAID file recovery software firstly and then finish the rest steps to recover permanently deleted files from RAID disk.
Recover RAID Data from Lost/Damaged Partition
Step 1: start the software and choose a proper function according to your actual needs. For instance, if you need to recover data from a corrupted, inaccessible, RAW or formatted partition, you should choose "Damaged Partition Recovery"; if you want to get data off a missing partition, you must choose "Lost Partition Recovery".
Step 2: the first thing you should do in this step is to select the corrupted/inaccessible/RAW/formatted partition if you chose "Damaged Partition Recovery" in step 1. In contrast, you should select the hard drive in which the lost partition was located if you chose "Lost Partition Recovery". Then, press "Full Scan" button to perform a thorough scan.
Step 3: wait patiently for the full scan. When it finishes, you should also look through the found files and folders one by one to check what you need. Considering that a large number of files will be found after a full scan, we have two suggestions for you:
a). Get a license and use it to upgrade the software from free edition. We estimate that the size of files you want to recover from a lost/damaged partition is larger than 1GB – the free recovery limit.
b). You may as well use "Find" function (which is able to search for files by file name) and "Filter" function (which is able to search for files by file extension, file size, creation date and modification date) to find needed files accurately and quickly.
Recover Data from RAID When OS Won't Boot
If the system refuses to boot after a crash, you'll lose access to all the data saved in computer hard disk. At this time, we don't suggest that you rely on RAID rebuild unless you're an expert in this or take out the disk from RAID array cabinet/card unless you're running a RAID 1. As a result, you can follow the tutorial given above or below when you need to perform data recovery on RAID 1; but you have to refer to the tutorial given in the following content to recover data from RAID 0 or other RAID types.
Instead, we advise you to get the bootable edition of MiniTool Power Data Recovery, make a bootable USB/CD/DVD with it and use the bootable device to access and recover data easily.
Step 1: find another computer, obtain the bootable edition and then insert a USB flash drive or CD/DVD to the computer. After that, double click on the boot disk setup program to open it and start installing MiniTool Bootable Media Builder (the boot disk creating tool).
Step 2: launch the MiniTool Bootable Media Builder and copy & paste the license to register. Then, choose to build a boot CD/DVD disc or USB flash drive. Follow the wizard to complete boot disk creating.
Step 3: eject the boot disk you have made from the current computer, insert it into your computer which can't boot and restart your computer afterward. Press corresponding button to enter BIOS.
Step 4: change the boot order of device to make the MiniTool Power Data Recovery Boot Disk the first boot device. Then, save changes in BIOS and exit.
Step 5: choose the first option (MiniTool Power Data Recovery V7.0) or wait for the automatic boot.
Step 6: choose a suitable function from the main interface of MiniTool Power Data Recovery V7.0 – Registered and then follow the prompt in each interface of the RAID recovery software to complete recovery easily.
That's all we want to say about how to recover data from RAID disk in corrupted computer. And this is also suitable when you desire to recover data from corrupted internal hard disk. Besides, if you also want to know RAID recovery for Mac, you should turn to MiniTool Mac Data Recovery.
Chapter 2 – Why We Are Using RAID
Benefits of RAID
Better storage performance and higher availability are the most obvious benefits of using RAID. Apart from this, we also want to share the following merits of RAID.
- Fault tolerance: backup of the data in the storage array will be created with RAID and this can be useful for the normal running of OS when disk failure occurs.
- Continuous system running: if one of the drives in a RAID array fails, you can properly use the system. Then, find an appropriate time to swap out the drive for a new one.
- Parity check: the parity check will be increased by using RAID so as to check for any potential system crash.
- Fast speed: the reading and writing of data will be done simultaneously so as to increase speed.
Hardware RAID and Software RAID in Windows
- Hardware RAID: on a hardware RAID, the processing will be done completely on the motherboard or a separate RAID card/cabinet. Besides, the logical disks will be configured (for example, mirrored) outside of the system. What's more, a physical controller will be there to help manage the disk array.
- Software RAID: on a software RAID, the processing will be done on the server motherboard. Besides, it is made of several disks attached to servers and those disks are managed by using built-in features on a number of operating systems. What's more, the physical controller is not required; all you need to do are connecting the disks and configuring them into the RAID level you prefer to.
Common Causes of RAID System Failures
- Disk order error.
- MBR/DBR damage.
- The system can't boot.
- Partition information is missing.
- RAID information is broken or missing.
- Improper RAID array information configuration.
- Database of the dynamic disk is missing or corrupted.
- RAID rebuilding failed midway.
- RAID rebuilding succeeds, but the partition can't be found or the system can't be started.
- Bad sectors on one or more hard disks (both physical and logical).
- System crashes due to RAID card/cabinet damage.
- System crashes due to the replacement failure after one or more hard drives are dropped.
Chapter 3 – Bottom Line
RAID is of great help to enhance performance and stability, so many people especially business managers choose to take advantage of it. However, you also need to aware that great potential danger is hidden during RAID using process. Any improper operations or unexpected attack/damage will lead to serious data loss problems.
As a result, we strongly suggest that you or other people who're running your PC pay enough attention to the security of data, avoid human error and damage as much as possible. Besides, if you're in face of RAID data loss predicament unluckily, please obtain and rely on a professional recovery tool like MiniTool Power Data Recovery at once. Then, look at the tutorial that is most suitable for your case and follow the steps to recover data from hardware RAID carefully.
MininiTool Power Data Recovery is one of the best RAID recovery software. If you don't trust it, you can firstly use the free edition to experience. If you're satisfied with it, you can acquire a license to upgrade.
After mastering the way to recover data from RAID disk, you also need to read the common causes of RAID system failures; this will help you greatly avoid RAID data loss in the future. By the way, you can also navigate to benefits of RAID to know what you can achieve by using RAID. Finally, hope you all can solve your problem without trouble.