Restoring an less than 30gb image from an 8TB HDD to a sata ssd is taking forever
A backup of less than 30GB is already taking more than one hour to restore and it still states 38 minutes remaining. It started with something like 30min left and then the estimated time went up and up at some time it estimated several hours.
I have only ~6% CPU load and lots of free memory, so I can't see why it would take that long. It should be done in a few minutes max. And so far I cant even tell if it's really restoring or just wasting my time. At least the progressbar is now at 3/4, but I still fear not much is happening. It cant be right that is is restoring only with ~4mb/sec. That's the write-speed of some of the slowest usb-sticks. The image comes from a 8TB HDD, restored to a blank SATA SSD. Both drives show a fine SMART-status, so there is for sure nothing wrong with them.
Why is this that slow?