Recover Data from RAID 5 with 2 Failed Drives

EaseUS RAID recovery helps solve the conventional RAID 0,1,5,6,10 data recovery problems. For RAID 5 recovery, if you are trying to recover data from RAID 5 with two failed drives, you might need an effortful attempt, due to the number of failed drives has exceeded one.

Table of Contents

Overview of RAID 5 Recovery

RAID is born to balance either the data redundancy or performance improvement, or both. So far, though many variations have involved such as nested RAID, the standard ones are RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10. They are using different techniques to work in a specific situation. As a comparison, among the standard levels, it's the RAID 5 technology that reaps the benefits of enhanced data security, excellent performance, high data redundancy, and acceptable budgets.

  • RAID 0 - striping
  • RAID 1 - mirroring
  • RAID 5 - striping with parity
  • RAID 6 - striping with double parity
  • RAID 10 - combining mirroring and striping

Briefly speaking, this RAID type consists of at least 3 disks for correct work, and you can add up to a maximum of 16 if needed. To get the best result of RAID 5 data recovery, it's necessary to know how RAID 5 operates. As the image shows, data blocks are striped across the drives and on one drive a parity checksum of all the block data is written. The parity data are not written to a fixed drive, they are spread across all drives. Using the parity data, the computer can recalculate the data of one of the other data blocks, should those data no longer be available. That means a RAID 5 array can withstand a single drive failure without losing data or access to data.

raid 5 configuration

In conclusion, if 1 of 3 or above hard disks of RAID 5 becomes corrupted, damaged, or dead, no worry. Most renowned RAID recovery software can easily help you get the lost data back. But sometimes, it's not a single drive problem but two. How do you get over with it?

Can You Recover Data from RAID 5 with 2 Disk Failure?

One catastrophic disaster is having 2 out of 3 hard disks broke down, especially at the same time. It's never possible to retrieve data from RAID 5 under such a circumstance. If by chance you use 5 or more disks arrays, you can put yourself together and try EaseUS RAID hard drive recovery software.

How many hard drives failed Chance of data recovery
2 of 3 hard disks Zero
2 of 5~16 hard disks

It depends

1. The more hard disks you are using, the higher the chance of successful RAID 5 data recovery

2. The more properly you handle the situation (i.e. Turn off the PC or RAID controller, or stop any operation on the RAID), the more likely you can rescue data without damaging the integrity

EaseUS Data Recovery Wizard is known as the most dependable, powerful, and efficient software that supports to rescue lost data from PCs, laptops, digital devices, hard drive (HDD, SSD), removable storage media (USB pen drive, memory card...), server, RAID, etc. Besides the ability to recover data from a corrupted hard drive or failed hard drive on RAID 5, it can also help recover data from the lost partition on RAID 5 and other levels.

Connect both the failed hard drives to your computer, and follow the guide below for a free trial. You can preview the scan results of lost data on the hard drives before actual data recovery.

Video Tutorial: RAID 5 Data Recovery

Step-by-Step Guide to Recover Files from RAID 5 Disk

Step 1. Scan the RAID drive

Choose the RAID drive from which you wish to recover data, and then click "Scan". Wait for the scanning process to finish, the deleted files will show up one by one.

choose the raid hard drive

Step 2. Find and preview lost RAID files

You can use "Filter" as quick navigation to find lost files. Besides, you can also use Search to find your lost Raid drive files via its file name or file extension. 

scan the raid hard drive

Step 3. Restore lost RAID drive files

Select the wanted files and click "Recover". Browse to save these files to another secure location.

recover data from the raid hard drive
Do You Need Specialized Data Recovery Services?
You may need further help for tough data loss situations like reformatting drive, RAW disk, partition loss, repartition failures, and system boot error. Consult with EaseUS Data Recovery Experts for cost-efficient one-on-one manual recovery service. They could offer the following services after FREE diagnosis:
1. Unformat the drive
2. Repair the RAID, RAW disk or operating system
3. Recover lost partition (the one that cannot be recovered by software)

100% Raid 5 Data Recovery - Backup

Try to avoid two drives dying at once. As soon as one drive shows an amber light, stop writing new data or forcing RAID 5 array back online right away. For RAID 5 recovery under two failed hard drives, the EaseUS RAID recovery solution is the most time-saving and results-enhancing choice for quick and complete data recovery.

Though RAID 5 provides protection from a single drive failure, it's crucial to sense the danger of two hard disks malfunctioning at the same time, which makes the full data recovery so difficult, even by professional data recovery services. It's of utmost importance to regularly back up RAID with a proper backup plan. A handy backup can guarantee a 100% possibility for RAID 5 data recovery with 2 problematic hard drives, or even more. Meanwhile, prevent disastrous consequences from the primary reasons for losing data.

  • Malfunctioned controller
  • Lost or deleted RAID partition
  • Incorrect RAID volume configuration
  • Viral damage or malware infection
  • Sudden power outage

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Updated by Gemma

Gemma is member of EaseUS team and has been committed to creating valuable content in fields about file recovery, partition management, and data backup etc for many years. She loves to help users solve various types of computer related issues.

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Written by Jean

Author Jean has been writing tech articles since she was graduated from university. She has been part of the EaseUS team for over 5 years. Her special focuses are data recovery, disk partitioning, data space optimization, data backup and Mac OS. By the way, she's an aviation fan!

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