I guess that's the same as "cloning". My understanding of cloning is that one OS to one harddrive only. You can put more than one "images" in a Hdd. but that's not exactly the same as cloning. I am not all that clear as how it is use so I use the cloning method because Hdd. are not that expensive.
would like to mirror disk 10 into disk 11 but if I right click Disk 10 in the Disk Management tool, 'add mirror' is grayed out.
The disks are physically identical.
Before I started, disk 11 had two partitions one about 2 TB and the other about 1.6 TB. So far I was able to get Disk 11 to have 1 partition as shown in the screen clip below. Note that the size of Disk 11 is shown as 0.01 GB less than that of disk 10.
So how do I go about getting 'add mirror' not to be grayed out.
Disk 10 has data on it which I have backed up on another drive.
Disk 11 has no useful data.
I have downloaded EaseUS Partition Master (free version) so have that available as a tool.