I’ve had many MyCloud NAS drives from the original single-drive to my current Gen 2 Mirror with 8T. They have all had the same issue. When I connect a USB drive for backups the dashboard becomes very, very slow to the point where even the browser (and I’ve used all the popular ones) complains the host is not responding. I’ve always used WD Passport drives for the backup destination.
Also, I’ve learned to not connect the USB drive until after I log into the dashboard and navigate to the backup pane. Otherwise, if the drive is connected earlier, this navigation process is painfully slow, taking up to half an hour before being able to start the backup. This sluggish behaviour is embarrassing to see in modern hardware. Don’t know what WD is thinking to release a product with such a flaw for so long.
Eventually, this non-responsiveness seems to cause the backups to fail. A reboot of the system will usually restore some vigor and allow backups to succeed, but in time it will revert back to its glacial pace. I keep hoping for a firmware update to fix this, but no luck so far. Anyone have a similar experience and some insights?