Windows NT Fault Tolerance and the Boot and System Partitions

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This article was previously published under Q113932

Disk mirroring is the only type of fault tolerance provided by Windows NT Advanced Server that you can use on the system or boot partitions. You must create disk striping, disk striping with parity, and volume sets entirely from free disk space.

If vendor hardware implementations of fault tolerance (for example, disk controllers that support mirroring, and RAID 5--striping with parity) are compatible with Windows NT, then you can use them on the boot and system partitions because they are implemented below the operating system level.

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