I have been scouring the internet for over a week now, and I cannot figure this one out. Some background... I am retiring an old physical file share server, and I am creating a new 2012 R2 VM on a 2012R2 DataCenter Core Hyper-V host. Creating the VM went without issue. It is configured as follows:
8GB RAM
4 CPU Cores
72GB system drive (C:\)
2TB data drive (D:\)
12GB page file drive (Z:\)
I have about 1.8TB of data to copy over from a physical box, so I am using RoboCopy. I have gotten about 1.5TB of data over, then the new VM's data drive (D:\) disappears and the copy fails. The disk no longer appears in Windows Explorer or diskmgmt.msc. The even log shows many event IDs 153 (The IO operation at logical block address 0x*** for Disk 2 was retried) and event IDs 51 (An error was detected on device \Device\Harddisk2\DR2 during a paging operation, and the last event when the drive disappears is a single Event ID 157 (Disk 2 has been surprise removed).
After racking my head over this for several days, I deleted the VHDX for the 2TB data drive, created a new one, and started the data copy all over... same issue. I completely deleted the VM and all files, reinstalled on new VHDX drives... same issue.
This leads me to think it is an issue with the Hyper-V host, but there are not event IDs pertaining to this, and the other 53VMs are running without issue.
I would SINCERELY appreciate any help with this.
Sorry for huge post, but thank you in advance!