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Level 1

5 points

I have been required to delete my back up folder on my synology NAS at least 10 times.

Time machine fails at every attempt. I can establish a backup easily, but it always fails after 2-60 days. All the other computers on the network are working well. This happens whether wi-fi or ethernet is used and is not related to upgrades or other disruptions that I can see.

Only one device on my network does this. After establishing a successful backup which lasts days, the time machine program then "loses" the relevant sparsebundle and cannot be rejoined. Attempts to do so have suggested that this is secondary because back up then proceed for 20-30 GB then fail. The primary trigger is beyond me.

iMac 27″ 5K, macOS 12.1

Posted on Jan 15, 2022 8:07 AM

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Tesserax

Level 10

149,483 points

Posted on Jan 15, 2022 12:29 PM

I just double-checked the version on my DS916+. It is running 7.0.1-42218. My latest successful TM backup to it was about 10 mins ago.

You may want to double-check your Synology's settings for TM backups.

I used the following Synology KB article when setting up mine:

How to back up files from Mac to Synology NAS with Time Machine - Synology KB

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Tesserax

Level 10

149,483 points

Jan 15, 2022 12:29 PM in response to Zuckerkandl

I just double-checked the version on my DS916+. It is running 7.0.1-42218. My latest successful TM backup to it was about 10 mins ago.

You may want to double-check your Synology's settings for TM backups.

I used the following Synology KB article when setting up mine:

How to back up files from Mac to Synology NAS with Time Machine - Synology KB

Tesserax

Level 10

149,483 points

Jan 15, 2022 10:38 AM in response to Zuckerkandl

FWIW. I have a Synology NAS that I also use for TM backups. It worked fine until I did an update to macOS Big Sur a while back. I found that I needed to upgrade the Synology DiskStation software to allow TM backups to run smoothly again. Since that time, I have upgraded my Mac to macOS Monterey and backups are still working without any issues.

lllaass

Level 10

210,423 points

Jan 15, 2022 8:26 AM in response to Zuckerkandl

Some other users have had similar problems with Time Machine backup to synology NAS'.

Do other computer that continue to successfully backup to the NAS also have Monterey?

Zuckerkandl Author

Level 1

5 points

Jan 15, 2022 10:33 AM in response to lllaass

In reply: yes. Each is an M1. All are on ethernet and all are on Monterrey.

Zuckerkandl Author

Level 1

5 points

Jan 15, 2022 12:07 PM in response to Tesserax

Thank you for your response, but the problem persisted after I upgraded DS to 7.0.

I have been required to delete my back up folder on my synology NAS at least 10 times.