How to Recover Data from RAID 5
RAID 5 could be the most popular one among RAID levels, including RAID 0, RAID 1, RAID 6, and RAID 10. It takes the strengths of other RAID levels, making it secure to use, high in data redundancy, great in data writing, reading, transferring speed while with a relatively low budget. However, problems still arise. Here are the problems and solutions.
Part 1. How to Recover Deleted Files from RAID 5
If you have a backup of RAID 5, then you’re supposed to restore the backup to get deleted files back. If you have deleted data and want to learn how to recover deleted files from RAID 5, you’re supposed to make use of data recovery software for help. Generally, it will scan the RAID 5 hard disk, displaying recoverable files there, letting your select and find them right away. iBeesoft Data Recovery is such a tool available for RAID 5 deleted file recovery. The process is very simple and easy as below shows.
- Download and install it on your computer.
- Launch the RAID Data Recovery software and select RAID 5 hard disk from where files were deleted and click "Scan".
- Preview the found recoverable files. When finding the needed files, select them and click "Recover" to save them on your computer.
- If you need to put the deleted files back to the RAID 5 hard disk, you should transfer the files there, rebuild and configure RAID as a duplicate of the original.
Part 2. How to Restore Files from Failed RAID 5
RAID 5 contains 3 disks at least and there is no maximum of hard disks in the RAID 5 array. Unlike RAID 0, once one disk fails, then the whole RAID 0 array stops work. When one disk failed, it has no effect on RAID 5, because it will reconstruct immediately. And if there are 2 or more disks that failed at the same time, then you will lose data from RAID. Put it in a word,
- When one disk in RAID 5 failed, you just don’t worry, let it reconstruct immediately. And a backup is strongly recommended in the cause of further failure.
- When a RAID 5 array comes with 2 failed drives, then you will be surely lose data.
Can RAID 5 recover from a two-disk failure?
If you only have 3 drives in the RAID 5 array, and then 2 of them failed, then there is no chance for RAID 5 data recovery. However, if you have more than 5 drives in the RAID 5 array, then you can try your luck to recover data from RAID 5 with 2 failed drives. And there are 2 ways workable.
Way #1. Resume Lost RAID 5 Data with Backup
Yes, as we have mentioned before, it’s time-consuming and money costing to backup RAID, especially when there are more than 3 drives for RAID 5. However, it is worth it when there is a failure of more than 2 drives in RAID 5. It’s a lifesaver. You can get lost data back from RAID 5 with backup. Here are the steps.
- Prepare a spare drive that has larger or the same capacity as the failed drive.
- Restore the backup to the spare drive and make sure the data is usable.
- Replace the failed 2 drives in RAID 5 with 2 new drives.
- Upload the data to the newly configured RAID 5.
Way #2. Retrieve Data from Failed RAID 5 Array with Data Recovery Software
Since there are large-sized data lost in failed RAID 5 drives, instead of successfully RAID 5 data recovery, any mistaken operation will cause data loss permanently. In this case, professional software is very helpful for RAID data recovery. Here are the steps for how to recover data from failed raid 5 arrays with professional data recovery software.
- Download and install iBeesoft Data Recovery software. Launch it.
- Hover your mouse over the interface, find the RAID 5 drive and click "Scan".
- Wait patiently for the scanning process to finish. After then you can see all the found recoverable files.
- Select needed files and click "Recover" to save them on your computer or prepared external hard drive.
Part 3. Frequently Asked Questions and Answers to RAID 5 Data Recovery
Q: How can I recover data from formatted RAID 5?
Formatting will remove all the files in RAID 5 drives. You can do anything to find data from formatted RAID 5 unless making use of data recovery software. iBeesoft Data Recover can be helpful for RAID 5 data recovery: install the software on computer > scan RAID 5 drive > select files to restore.
Q: How can I recover data from a broken RAID 5?
If RAID 5 is physically damaged, then there is no need to get back data from RAID 5. If you mean "broken" as a failure, then you can find data by restoring from backup or using iBeesoft data recovery for help.
- Check broken RAID 5 drive is not physically damaged. It only failed to work.
- Download and install iBeesoft Data Recovery software on the computer.
- Launch the RAID data recovery software and select RAID 5 drive to scan.
- Select needed files and click "Recover" to save them on a prepared external hard drive.
Q: How to recover files from a single raid of 5 disks?
Generally speaking, it is not necessary to restore data from a single RAID 5 disk since if a single RAID 5 disk quit working, RAID 5 will reconstruct it. You just need to replace the failed single disk with a new one, configure the RAID 5 and let it work again.
Q: How many disks does RAID 5 use? What are the minimum drives for RAID 5?
There is no limit for how many disks for RAID 5 use. 3 disks are required at least. It means RAID 5 requires 3 and more disks.