time machine network volume

I recently updated to Big Sure 11.1 and all seems to work well, but not Time Machine. I have been using a Drobo 5N2 share connected by SMB as a backup volume and it has worked great for a couple of years, but after updating my system to 11.1, the NAS share still mounts fine in the finder, but backups to it fail. I deleted the backup share and made a new one, and that also mounts fine, but Time Machine does not even see it as an option for a target disk. Drobo software is up to date, and all permissions allowed under security in preferences. Seems like an OS bug to me.

MacBook Pro 15″, macOS 11.1

Posted on Dec 17, 2020 6:48 AM

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masterofmachines Author

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23 points

Posted on Jan 14, 2021 11:12 AM

I may have figured this out. I tried deleting the share on my Drobo again and redoing a Time Machine backup and it did the initial backup but then failed on subsequent backups. I noticed that the share was listed in the Time Machine preferences panel with the location of "...local", whereas most online images had an IP address. I unmounted the share within the Drobo Dashboard and in the finder, then mounted it using the static local IP of the drive: afp://192.168.1.15/sharename. Now Time Machine has completed several backups without difficulty and is listed with this IP next to the share name in the preferences panel. Weird, but it seems to work.

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time machine network volume

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