Thx for the replies.  You guys offer a lot of great service.  My bad, I followed the wrong approach when using an external USB device in the process.  It wasn't the fault of the Acronis software. Ideally, it would have worked the way I did it if I had two internal m.2 slots but the XPS8910 only had the one.  I was supposed to remove the existing C:\ NVME and put the new one in place with nothing on it.  And put the orig C: NVME in the MVME usb device.  They said once booted with the blank on onboard, the post process would have put on it what it needed as far as the SCSI/RAID drivers and the clone could begin.  Of course, I would have had to boot the computer with a thumb drive with the minimal Acronis OS/Clone app and have adjusted the bios boot order. Regarding the unallocated space, I used a partition tool which allowed me graphically to move the unallocated partition next to the C: OS partition and once adjacent to it I could them add the unallocated space to the C: OS partition.  So all is good for now.
Hi all, Got past the cloning process, but should have read some suggestions here before I jumped in as the drives appear to be running on SCSI RAID? Anyway,  the clone didn't work and had to work with Acronis to get it fixed up. It is running ok now but I would like to fix the partitions to move the allocated space to the C: partition. I replaced a 500GB SSD with 1 TB and the way it cloned, I have 6 partitions, when the Dell OEM had 5, which included the image, etc.  In a related post 3 years ago, someone said it was easy to fix the partitions without a specific partition tool. I am being told the partition needs to be adjacent to C: partition in order to expand C: into the unallocated space.  Seems like a need a 3rd party partitioning software for this?  I have used one several years ago.  Am I missing something in Disk Management? Lastly, to maintain the ability to use the Dell emergency imaging and whatever Dell has on the SSD, does the order of partitions make a difference? It also appears the Clone did not capture all of the name data for the partitions. Used to be good at this stuff but haven't had to do it in quite a few years. Thx DD [IMAGE]  
XPS 8910, clone OEM NVME M.2 to larger SSD, now has unallocated space?