Windows 10: Breaking disk mirror, which disk will keep the original drive letter?

If I select "break mirror" on a mirrored disk in disk manager, will that disk get a new drive letter assigned, or will it keep the original drive letter?
(I want disk#1 to keep the original "D:" as drive letter, and assign a new drive letter to disk#2, e.g. "E:").

:)

 

Breaking mirror: which disk will keep the original drive letter?

I run Windows 10 Pro, with Disk#1 and Disk#2 setup as mirrors (as "D:"), but now I want to break the mirror and let Disk#1 keep "D:" as drive letter, and assign a new drive letter to Disk#2 (e.g. "E:").

Which disk should I right-click on and select "break mirror" to achieve that, is it Disk#1, or Disk#2?

 

Breaking mirror: which disk will keep the original drive letter?

Thanks, I will try that as soon as I have time...

I assume disk#1 is the original (whose data I see in explorer) and disk#2 is the mirror (whose data is normally hidden), so any data loss when breaking the mirror would most likely occur on disk#2, right?

The reason for that assumption (apart from being the logical order) is that when Windows recently made a resync after a powerfail it copied everything from disk#1 to disk#2 (checked that with task manager), which took a staggering 11 days of continous run to
complete!

 

If you are talking about a a RAID 1 Mirror, then the original drive will keep it's Drive letter. and keep the data. The data on the mirrored drive will be lost and have no drive letter.
Anytime you want to change a Drive letter, go to Start/Search and type diskmgmt.msc, Right click the diskmgmt results and Run As Administrator. In the lower pane, Right click the drive you want to change the drive letter of and choose Change Drive Letter or Paths. Choose a drive letter not being used.

 

It is Windows disk mirroring (in software) on 2 dynamic disks. Not sure if that is the same as RAID1...

You mean it doesn't matter which disk I select for "break mirror", will disk#1 still keep the drive letter "D:" and disk#2 get a new drive letter assigned?

I came to the conlusion that disk#1 is the original and disk#2 is the mirror, because when Windows recently made a resync after a powerfail (which took a staggering 11 days to complete = not acceptable!) it copied everything from disk#1 to disk#2 (checked that in the task manager).
So my goal here is to make sure that drive#1 will end up as "D:" when I break the mirror, because that is the disk I will continue to use, and it seems safer to go with the original than the mirror (especially after that resync issue...)

 

You can reasign the drive letter at any time so no problem