Add my name to the list of people experiencing this problem.
My backup set is ~3.5TB. I’ve had the initial backup running for 6 days, but after a reboot I am stuck in Verifying Backup Data, which has now been running for about 12 hours.
I am desperate to get this fixed soon, as I am trying to get all of this backed up within the same Comcast billing cycle. If this issue causes the backup to head in to May, it’ll cost me another $200 in overage charges
Is there absolutely anything I can do to help diagnose this issue? My symptoms are the same as everyone else: one full CPU core pegged and it doesn’t respond to any stop commands. I am running inside a Docker container, and I can see that it’s doing only a very small amount of disk and network I/O:
Edit: Update: After about 16 hours, the backup has continued, but it’s not going well. The backup is only sending up chunks once every 5 minutes or so, with huge periods of inactivity between them, as you can see in this screenshot:
The CPU is pegged the whole time, so it does seem to be doing something. For the first week or so of this backup, I was getting a constant 3MB/s upload, which is what I have the cap set to, so it does seem like something changed.