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Upgrading a 2x500GB SSD bootable RAID 1 array to 2x1TB SSD RAID 1 array with Acronis

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I am looking to upgrade my Dell Precision 3431 RAID 1 array that is using the built-in Intel motherboard RAID which is currently configured as 2x500GB SSD drives to bigger 2X1TB SSD drives.  This computer does boot into Windows 10 from this array.  These are the only drives in the system other than a DVD player.  How can I accomplish this?

Can I simply:

1) Use Acronis (from boot disc) and perform a System Image from the current RAID 1 array to a USB backup drive.

2) Shutdown and remove the 2x500GB SSD drives and install the 2x1TB SSD drives.

3) From BIOS, create a new RAID 1 array with the same name as the old array.

4) Boot again from ATI boot disc and restore the image from the USB backup drive to the new RAID 1 array.

Any help is appreciated!

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Robert, if you are using hardware RAID, i.e. one that makes the two existing SSD's appear as if they are a single drive, then you should be able to create a backup of that drive from within Windows 10 using the installed Acronis GUI application.

The next important step is to create the 'Simple' version of Acronis bootable rescue media and then test booting your PC from that media, to ensure that a) you are able to do so successfully, and b) you can 'see' the same 'single' SSD drive from within the rescue environment.

If all looks good from the rescue media, then the next step would be to do the swap of drives in the RAID array, then boot again from the rescue media and restore the backup to the new 'single' drive.

See KB 65508: Acronis True Image 2021: how to create bootable media and KB 59877: Acronis True Image: how to distinguish between UEFI and Legacy BIOS boot modes of Acronis Bootable Media

KB 65539: Acronis True Image 2021: How to restore your computer with WinPE-based or WinRE-based media

@Steve Smith as usual is giving excellent advise. In addition, rather than just removing the disks and putting in the new disks, I would delete the raid array and then, after replacing the drives, create a new array. While it is possible that the new array to be created automatically, I have never tried. I have swapped 3 drives in a RAID 5 array onto a different PC and it automatically recognised the array from information on the individual drives. This why I would delete the array before removing the "old" drives to assure that the raid signature is removed from the disks.

Ian