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@Mike,
The best version of HBS is the latest production version. I know you are concerned, but could you please wait for an expert analysis of your backup logs by the Hasleo Support Team, please? Hasleo is dedicated to providing the best customer support.
Have a great day.
Regards,
Phil
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From the log file, it is clear that the backup was indeed interrupted abnormally, and the cause was a computer reboot. The reboot timings appear to be fairly random.
Since this is a Windows Server operating system, if a software-level issue caused the computer to reboot, the system logs should record a corresponding event. However, based on the current findings, no relevant software-level event records have been found. Therefore, I agree with @Froggie's assessment: the issue is more likely caused by a hardware problem, and the operating system may not even have had the opportunity to record an event.
To help further narrow down the issue, I suggest that you lower the image transfer speed limit in the backup options and then check whether the issue still persists.
The steps are as follows:
1. Go to Backup Options => Advanced page;
2. Check the "Image transfer speed limit" option;
3. Set the speed to a lower value, for example, 100 MB/s or less;
4. Save the settings and then re-run the backup task.
Lowering the speed can reduce the I/O and hardware stress during the backup process. If the reboot issue disappears after lowering the speed, this would further support the hardware-related assessment.