How to Clone a RAID Drive to a Single SSD

A two-drive RAID array in a desktop often delivers redundancy that a backup would cover better. Replacing it with one SSD cuts power, noise, and boot time.

This guide explains what a clone tool actually sees behind a RAID controller, the preparation that prevents a failed boot, and the switch from RAID mode to AHCI.

When Leaving RAID Makes Sense

The array holds a single desktop. One user and one Windows install gain little from RAID 1.
Backups already cover the data. A tested image on another disk is stronger than mirroring a bad file.
The controller is failing. A dying RAID card puts both copies of the data at risk.
An NVMe drive is faster. A single PCIe SSD beats a SATA array on latency and sequential speed.
Power and noise matter. Two spinning drives cost more to run than one solid state drive.

RAID protects against a disk failure, not against deletion, ransomware, or a controller fault. A single SSD plus a real backup is the more practical layout.

A single SSD can replace a two-drive RAID array

Understand What the Clone Sees

The clone sees a logical volume. Windows addresses the array as one disk, not as its member drives.
Member disks are hidden. Hardware RAID hides the physical drives, so they never appear in Disk Management.
Intel RST stores metadata. Firmware RAID keeps array information on each member disk outside the Windows volume.
RAID level changes the layout. RAID 0 stripes, RAID 1 mirrors, and RAID 5 spreads parity across members.
Stripe size is irrelevant to the copy. The clone reads the volume in order and writes it as one linear disk.

Never try to clone a single member disk. It holds only part of the data under RAID 0 or parity information under RAID 5.

Compare the RAID volume size with the SSD capacity

Prepare the Array and Target

Check array health. Confirm both members are online and no rebuild is in progress before you copy.
Back up the volume. Create a system image so a failed clone leaves a restore path.
Record the RAID details. Note the level, controller mode, and whether the array is firmware or hardware based.
Size the SSD for the volume. The target must exceed the used data after the array is presented as one disk.
Match the partition style. Keep GPT with UEFI or MBR with legacy boot, exactly as the source uses.

If the plan includes switching to AHCI, prepare the safe-mode step first. Changing the SATA mode after the clone without it usually ends in a boot loop.

Clone the Volume with Qiling Disk Master

Qiling Disk Master copies the logical volume the controller exposes. Install it on the running system and attach the SSD through a spare SATA port or USB adapter.

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Windows 11/10/8/7, 100% Secure

Step 1. Open Qiling Disk Master, choose Clone, and then select Disk Clone.

Choose Disk Clone in Qiling Disk Master

Step 2. Select the RAID volume as the source and click Next.

Select the RAID volume as the source and click Next

Step 3. Select the new SSD as the destination and confirm that its data will be replaced.

Select the destination SSD and click Next

Step 4. Review the partitions, keep the EFI and recovery volumes, and tick Optimize for SSD.

Review the clone layout and click Proceed

Step 5. Click Proceed, wait for the copy to finish, then shut down before you change any cables.

Monitor the clone progress bar until the task finishes

First Boot After Leaving RAID

Remove the array members. Disconnect the old drives so firmware RAID metadata cannot confuse the boot.
Change the SATA mode carefully. Switch from RAID to AHCI only after the safe-mode preparation or with the registry fix.
Set the boot entry. Choose Windows Boot Manager on the SSD first in the firmware order.
Install storage drivers. Add the AHCI or NVMe driver if Device Manager shows an unknown controller.
Check for array warnings. Intel RST utilities should be uninstalled once no array remains.

If Windows stops with an inaccessible boot device error, the controller mode is still wrong. Cloned Drive Wont Boot Fix explains how to change the mode from recovery media.

FAQs About RAID to SSD Clones

Can I clone a RAID 0 array?

Yes. The clone reads the logical volume, so the stripe layout is handled by the controller, not the tool.

Do I need to break the array first?

No. Copy the volume while the array is healthy, then remove the members after the SSD is ready.

Why will Windows not boot in AHCI mode?

The installed driver was loaded in RAID mode. Prepare the safe-mode switch before you change the firmware setting.

Are the old drives still usable?

Yes after they are wiped. A RAID member holds metadata that must be cleared before it works as a normal disk.

Does a single SSD keep any redundancy?

No. Replace the mirror with a scheduled image backup so a disk failure still has a recovery path.

Back Up Windows Before You Clone

Before changing drives or controllers, create a full system backup. Qiling Disk Master creates an image you can restore from.

Free Download
Windows 11/10/8/7, 100% Secure

Step 1. Open Qiling Disk Master and select System Backup to include Windows and the boot partitions.

Select System Backup in Qiling Disk Master

Step 2. Save the image to a drive other than the target disk and start the backup.

Choose a folder on another drive for the system image

Step 3. Click Proceed to start the system backup and wait patiently until it finishes. You can also tick Shut down the computer when the operation is completed to power off automatically.

Watch the system backup progress until it finishes

Step 4. If the copy will not start, restore the image to a spare drive and boot from it.

Restore the image with Disk recovery when the clone fails

Conclusion

A RAID to single SSD move works because the clone tool reads the logical volume the controller presents. Verify array health, image the volume, and copy it to a larger SSD that keeps the same partition style. Afterwards, remove the members, change the SATA mode only with the safe-mode preparation, and set the SSD boot entry first. Finally, replace the lost mirror with a scheduled backup that actually protects the data.

For more on controller and boot changes, see How to Clone a Windows Server System Disk, Cloned Drive Wont Boot Fix, How to Clone a Hard Drive to a Larger Hard Drive, and How Long Does a Disk Clone Take.

Migrate Windows 10 from One PC to Another
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How to Clone a BitLocker Encrypted Drive
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Replace a Hard Drive with an SSD Without Reinstalling Windows
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How to Clone a Desktop Computer
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How to Clone a NAS Drive to a Larger Drive
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