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This pages discusses RAID and spanned volume reconstruction to help you choose the right
license type. In general less than one percent customers need the RAID and spanned volume
reconstruction.
What is a "broken" hardware-based RAID disk?
Many PCs comes with a RAID controller that allows you to configure multiple disks to operate as a single RAID disk. When you display the disks in Windows (for example, by using the Windows Disk Management tool), they are shown as a single disk.
The RAID settings are saved by the RAID controller. If the settings are lost, data on the disk will no longer be accessible. If you logon to Windows, the disks are either not shown at all or shown as individual disks in an unformatted state.
What is a "broken" software-based striped, RAID 5 or spanned volume?
Windows (Windows Disk Management tool) provides a similar function where you can configure multiple disks as a single volume. When the configuration is lost, for example due to an upgrade to a new operating system, data on the disks become inaccessible. The individual disks are usually shown as being in an unformatted state.
In both scenarios, File Scavenger can be used to reconstruct the lost data and recover it to another disk.
To reconstruct a broken RAID or spanned volume, you need either:
- The Professional Use license or
- The Personal Use license with RAID Reconstruction option.
Note that if such a volume is damaged or reformatted but not broken, reconstruction is not necessary. Data can be recovered with the standard Personal Use license.
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