To learn how to use Time Machine please read Use Time Machine to back up or restore your Mac - Apple Support. Non-Apple NAS devices are not supported and will not work.
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- If you want to use Apple's Time Machine software for backups, then don't use a non-Apple NAS. It will never be reliable, despite what their manufacturers claim.
- If you want to use a non-Apple NAS for backups, then don't use Apple's Time Machine software. Use something else. No backup solution is as well integrated with macOS as is Time Machine though.
Anticipating your next questions: I know you've been using it for years without a problem. I know NAS device manufacturers claim it will work. I also know it will never be reliable, and if you continue to rely upon an unsupported Time Machine implementation you will eventually lose all your data.
I also know you don't believe me, so please research this site for hundreds of reports from others. Don't be one of them.
Sep 25, 2017 6:13 AM
I'm trying to backup my MacBook (Catalina 10.15.2) using Acronis True Image 2020 (v.24.5.22510) to a WD MyCloud Ex2 Ultra NAS. Each time I do so the backup hangs with 'less than 1 minute' and I have no option but to pause the job. I have let this run for in excess of 24 hours and there is still no movement.
For info. the .tibx file on the NAS is 269.02gb and there is 3.45tb free.
Nicholas, welcome to these public User Forums.
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I am not a Mac user, so my comments come from a Windows perspective.
The size of your .tibx file on the NAS at nearly 270GB is very large - is it possible for you to break this down into smaller parts, and test if those smaller backups will complete successfully?
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Are you performing any other action as part of your backup task, i.e. following the backup by doing a validation?
Has this backup ever worked previously?