To me it seems that during sleep the system dismounts all mounted volumes because it loses ethernet access at the point when it goes to sleep, but once it briefly wakes during Power Nap it does not remount the volume from the SMB share, but rather just looks for the previously mounted Sparse Disk Image Bundle at /Volumes/MyBackup/.
Because I was unable to run backups in High Sierra (it’s a long story involving a Fusion Drive, APFS, and inability to dual-boot High Sierra), T2M2. If you only plan to use your QNAP for Time Machine backup, you can leave this at 0. Click on its Check Time Machine button, and it gives a traffic light indicator, hopefully green, as to how your backups are running, and provides some useful detail about the whole backup system. FAQ Login Register Home Board index General File Sharing Mac OS macOS Sierra Time Machine not working. Lastly, choose how much disk space you want your Time Machine server to use. Once it wakes from sleep it displays the error message that TM backup failed and in the console I can find the somewhat more detailed message: "No destination resolvable" If you’re using a 2-bay unit like the HS-210, you’ll likely only have 1 choice. Thanks to QNAP’s latest QTS 4.3.3 update, your NAS is now optimized for macOS Sierra. Control-click the folder you've added, then choose Advanced Options from the shortcuts menu that appears. Never lose another file with a wide array of backup functionality on your QNAP NAS. From the Shared Folders list on the right, click the add button (+), then choose a folder to use for Time Machine backups. From the list of services on the left, select File Sharing. However, the problem occurs during sleep when Time Machine tries to backup during Power Nap. Choose Apple menu > System Preferences, then click Sharing. In the past I could boot to the recovery console, select the TimeMachine backup it automatically detects, log in and restore my data. As long as the mac is awake there is no problem at all to backup or retrieve files. I have my Qnap Time Machine backing up my Macbook throughout the day. On my mac I have Time Machine configured to backup to a Sparse Disk Image Bundle that is located on my Raspberry pi, which it connects to over SMB and mounts on boot.