mirrored volume

Definition of mirrored volume in The Network Encyclopedia.

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What is Mirrored Volume?

In Microsoft Windows 2000, a volume created with the Disk Management tool that duplicates its data on two physical disks to provide fault tolerance - if one physical disk fails, the system continues to operate using the second disk.

Mirrored volumes perform read operations more slowly than RAID-5 volumes but execute write operations more quickly. You cannot extend mirrored volumes, and you must create them on dynamic disks.


The Windows NT equivalent of a mirrored volume is called a mirror set.