Break disk
DiskPart
This is from Microsoft Technet. If you want to see it at their site, click here
To access DiskPart, click here
Syntax: break disk= n [nokeep] [noerr]
Applies to dynamic disks only. Breaks the mirrored volume with focus
into two simple volumes. One simple volume retains the drive letter
and any mount points of the mirrored volume, while the other simple
volume receives the focus so that you can assign it a drive letter.
By default, the contents of both halves of the mirror are retained;
each half becomes a simple volume. If you use the nokeep
parameter, only one-half of the mirror is retained as a simple
volume, while the other half is deleted and converted to free space.
Neither volume receives the focus.
n
Specifies the disk that contains the mirrored volume.
nokeep
Specifies that only one of the mirrored volumes is retained; the
other simple volume is deleted and converted to free space. Neither
volume receives the focus.
noerr
For scripting only. When an error is encountered, specifies that
DiskPart continues to process commands as if the error did not
occur. Without the noerr parameter, an error causes
DiskPart to exit with an error code.