Disk mirroring provides a high degree of protection against data loss with no performance penalty if it's implemented in hardware.

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Disk mirroring, when implemented in hardware, does not cause any performance penalty and provides a high degree of data protection. This is because the data is simultaneously written to two or more disks at the same time, ensuring that there is a backup in case of a disk failure.

Disk Mirroring Provides a High Degree of Protection Against Data