Hello all
After expanding a VHDX of a Hyper-V 2016 VM, daily differential backups which usually had a size of around 50GB are taking longer and job's byte count is around the same size of VHDX expansion (500GB). I'm using Hyper-V 2016 Resilient Change Tracking for backups.
After the job finishes Backup Sets have regular size (around 50GB)
Other interesting thing is that just after a full backup, differential or incremental backups run with correct byte count. I don't know why, after about 1 week job's byte count get back to around the same 500GB...
Any help is appreciated!
