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In this blog post we will discuss how you can fix the issue of RAID controller not reconsigning the drives and if you are not able to fix the RAID controller not recognizing drives error, how you can recover data with Stellar Data Recovery Technician software. Get the software now!

A RAID controller is a software program or hardware componentthat is used to manage storage drives such as hard disk drives (HDDs) andsolid-state drives (SSDs) in a RAID environment to achieve redundancy, performance,or both.

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This logical arrangement of physical drives in a RAID arrayis susceptible to errors often caused by hardware/software failure and humanerrors.

Events such malware or virus infection, power surge or abrupt shutdown, device driver issues, metadata conflicts, etc. can lead to errors where RAID controller may stop detecting or recognizing RAID drives.

Further, SMART disk errors and overheating can also lead to such errors. And in some rare cases, a RAID may stop detecting RAID drives after a soft reboot.

Below are some quick fixes for a RAID controller when it failsto recognize RAID drives.

How to Fix RAID Controller not Recognizing Drives Error

To fix the RAID Controller not detecting RAID hard drives error, follow these troubleshooting steps,

Step 1: Inspect Drives

Remove all drives from the RAID stack and connect them to aWindows PC via SATA or SATA to USB converter cables.

Then use a SMART disk monitoring utility such as CrystalDiskInfo or a comprehensive datacare tool like Stellar Data Recovery Technician to get better insights aboutdisk health.

• If the drive monitor utility displays poorhealth and SMART warnings, prefer cloning the disk as it may fail in the nearfuture. Immediately skip to Step 3. and reconstruct a virtual RAID to avoid data loss.
• In case everything looks fine, continue to withthe below fixes

Step 2: Check/Reset BIOS configuration

Make sure BIOS settings are defined as per the RAID setup.If you observe any recent changes due to BIOS update or corruption, revertthose.

You may also try to update or downgrade your BIOS.

CAUTION: Updating BIOS is safe if it completes successfully. However, downgrading BIOS can be fatal for the system as it can brick your laptop or PC. System BIOS may get corrupt if the downgrade procedure fails in between. So proceed accordingly, at your own risk.

Further, check the SATA Mode selection or similar setting inyour system BIOS to ensure RAID is selected instead of SATA drive.

Step 3: Replace or Try another RAID Controller

If your RAID array is external or network-connected, tryreplacing the hardware controller. Alternatively, you can try anothercontroller to check if the drives are recognized.

This step may not be feasible to many as hardwarecontrollers are not cheap. But there’s a more affordable alternative discussedin the next step that can help you rebuild a virtual RAID array.

Step 4: Reconstruct a Virtual RAID 0, RAID 5, or RAID 6 Array

If you are not able to fix the RAID controller not recognizing drives error, it’s better to reconstruct a virtual RAID with the help of a RAID recovery software. Follow these steps to rebuild your RAID array and recover or backup your inaccessible data,

• Download, install and run Stellar Data Recovery Technician

• Choose what to recover and click ‘Next.’

• Select ‘RAID Recovery’ under ‘Other Location’ screen and click ‘Scan.’

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• Click on respective RAID tab and move RAID disks to ‘Move hard drives up/down for disk order’ list box using left-right arrow buttons.

• Arrange all disks in the correct order as they were in RAID stack by using the up-down arrow buttons.
• Enter or select the required RAID parameters or choose ‘Don’t know …’ option if you don’t remember the required parameters for virtual RAID reconstruction.

• Click the ‘Build RAID’ button. Based on entered parameters, the software recreates a virtual RAID construction. Otherwise it creates a few probable RAID constructions
• Click the ‘Show Volume List’ button

• Select the RAID volume and click ‘Scan’

• If the desired files are not found, click on ‘Click Here’ link at the bottom-left to begin a ‘Deep Scan.’

If the RAID volume is not listed, select virtual RAID 0 drive and scan for missing partition(s).

• Select the files or folders that you want to recover and then click the ‘Recover’ button
• Click ‘Browse’ to choose a save location

WARNING: Do not select RAID drive(s) as a savelocation to avoid overwriting. Select an external HDD or internal hard drivevolume with enough storage space to save recovered data.

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• Click ‘Start Saving’ to begin saving recovered files at your desired location

Onceyou have recovered your data, go ahead and format the RAID disks. Then recreateyour RAID array with the formatted disks.

In case the raid controller not recognizing drives error arises again, try low-level format or get RAID level storage drive to recreate RAID.

Conclusion

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A RAID controller detection works with defined parameters unless any of the predefined settings conflicts or changed due to BIOS misconfiguration, damage, or corruption. Due to this, a RAID controller may fail to recognize the drives.

Further, logical, mechanical, and physical errors including SMART errors can also cause such drive detection error with RAID arrays.

This guide helps you fix all the common problems related to theRAID controller, drives, and software that cause the RAID controller not torecognize RAID drives.

In most cases, raid controller not detecting drives error can’t be fixed and you may not be able to access your RAID volume even after applying these fixes. In such cases, you must use a powerful and reliable RAID data recovery software such as Stellar Data Recovery Technician that can reconstruct a virtual RAID array and facilitates data recovery from the virtual RAID.

The software can rebuild a failed, broken, corrupt, and crashed RAID 0, RAID 5, and RAID 6 arrays even if the critical RAID parameters required for RAID reconstruction are unknown. You can further keep using this software as it also monitors RAID drive health and helps you prevent situations such as RAID controller not recognizing drives error as it proactively monitors disk health and SMART status.

When inside a computer, ensure you are familiar with ESD and take the necessary steps to help prevent it.

Hard drive not connected properly

Verify that the cables are connected correctly to the back of the hard drive. All hard drives have at least two cables connected to the back of the drive. Verify that the power cable and well as the data cable are connected.

The interface cable must also connect in the correct direction. For users who have IDE/EIDE hard drives, pin one (red or blue edge of the cable) points towards the power connection.

Next, verify that the interface cable connects to the interface card or motherboard.

If the cables are connected, consider disconnecting and then reconnecting the cables to ensure they are firmly connected.

Hard drive not configured properly

If a new IDE or EIDE device was connected to the computer, ensure that the jumpers are set properly.

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Verify that the computer hard drive is detected and properly configured in your BIOS setup. If your BIOS supports 'Auto' (automatic configuration), we recommend using that setting.

If the hard drive is not detected by the BIOS, you may be experiencing one of the problems listed below.

A bad hard drive cable

If the recommendations above are attempted, and you are still encountering the same issue, the cable connecting the hard drive may be bad. Replace this cable with a known good cable.

Bad hard drive

If you continue to experience the same issues, the hard drive may be bad. We recommend the drive be replaced. If the computer or hard drive is still under warranty, we recommend you contact the computer manufacturer or hard drive manufacturer for additional recommendations or replacement.

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Bad interface board or motherboard

Finally, if none of the recommendations above resolve your issue, the interface board the hard drive connects to or the motherboard is likely bad. We recommend these components be replaced or that the computer be serviced.

If the computer or the motherboard is still under warranty, it can likely be repaired or replaced. We strongly recommended you contact the hardware manufacturer for additional information.