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Dell PowerEdge RAID Controller 9 User’s Guide H330, H730, and H830

Break mirror

A Break Mirror is performed only on RAID 1 arrays. It provides a way to 'split' the mirror and spin-down one of the hard disks, which can then be imported into the configuration of a different PERC 9 series controller. This can be a useful way to:
  • Create a disk image that can be imported and booted on a different system.
  • Assist in software or configuration testing, where half of the mirror can be removed to ensure configuration consistency.
    NOTE:The Break Mirror operation is not available within the booted operating system environment. It is only available in the BIOS Configuration Utility (<Ctrl> <R>) utility and the UEFI RAID configuration utility.

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