RAID Recovery™ Recovers all types of corrupted RAID arrays
RAID Recovery™
Recovers all types of corrupted RAID arrays

If RAID array does not reassemble after reboot

Here you will find out:

  • the algorithm of deeds if RAID array doesn't reassemble after reboot
  • when DiskInternals can help you

Are you ready? Let's read!

So, if your RAID array doesn't reassemble after reboot, follow the instructions below:

Step 1. Save your data

You need to save the data from the array since data will be lost when the array is reassembled.

To do this, you must use DiskInternals RAID Recovery. This application automatically determines the correct array type and RAID controller type, and this, in turn, is vital for the correct recovery of data from RAID. In addition, the utility recovers files from damaged RAID 0, 1E, RAID 4, RAID 1, 0 + 1, RAID 5, 50, 5EE, RAID 6, RAID 60, etc. Restrictions in Windows are not an obstacle and can be easily bypassed. This application is useful even for beginners, as the Recovery Wizard can help you in difficult moments. Indeed, the recovery process is almost completely automated.

Follow these instructions for DiskInternals RAID Recovery:

Download and install DiskInternals RAID Recovery on your Windows computer.

Open it; as mentioned above, the program itself will determine the type of array and display it on the monitor.

Click the "RAID Recovery" button and select Reader mode.

Next, simply save the data to external storage again.

Step 2. Find the reason of the problem

Your RAID array may not reassemble after a reboot for the following reasons:

RAID reassemble

  1. 1. Error in the mdadm.conf file (it is in the wrong place, or the file does not exist)
  1. 2. Assembly error
  1. 3. Virus or malware
  1. 4. Damaged sectors on RAID disks
  1. 5. Human error
  1. 6. Other reasons

Undoubtedly, errors 1 and 2 are the most common, so pay the most attention to them.

Here’s something to remember: you may be able to assemble and mount the RAID array manually in spite of it being automatically assembled during the boot.

In this case, examine the mdadm-raid script and use the debug code. For example, it could be that partitions like sda1 and sdb1 are missing. After editing the mdadm-raid file, partitions will be detected and mdadm-raid will be able to assemble the RAID array.

Once you find the reason, you can correct the problem.

After you do so, try rebuilding the RAID again.

Step 3. Bring the data back

After you have successfully completed steps 1 and 2, get the data from the external storage again (from step 1) and save it to RAID again.

Congratulations, your array is back in assembled working condition!

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