time machine

Question

time machine

How to configure the time machine to create a backup from both internal disks?

Or change the backuping disk to another ("system" to "work")

iMac 27″ 5K, macOS 12.0

Posted on Dec 14, 2021 12:18 AM

Reply

Answer 1

Stevi_S

Community Specialist

Dec 14, 2021 6:28 PM in response to TheMrRedPanda

Hi TheMrRedPanda,

Thanks for using Apple Support Communities. We understand you have some questions about Time Machine. We're happy to share some information to help.

You can find some great information about Time Machine and how to change your preferences here: Change Time Machine Preferences on Mac

Thanks

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Answer 2

Dec 14, 2021 8:18 PM in response to Stevi_S

Hi Stevi. Thank you for your attention. But in this section there is no answer to my question.

I need to make a backup from the second internal disk on my iMac. Either make a backup only from the second disk ignoring the first (system).

In the settings of the time machine there is only a choice of disk where to make backup and exclude.

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Answer 3

den.thed

Level 10

82,450 points

Dec 15, 2021 7:52 AM in response to TheMrRedPanda

"If both drives are not in the Exclude List, then Time Machine is backing up both drives."

Adding a drive (item) to the list will Exclude it from TM backups.

How are both the Apple and Samsung SSDs formatted?

How and what are you using each of the SSD's for?

(one for macOS and one for your user data)

(one for one macOS and one for another macOS)

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Answer 4

den.thed

Level 10

82,450 points

Dec 16, 2021 8:08 AM in response to TheMrRedPanda

At this point I'm not certian why TM is not backing up both of your internal drives.

If the Time Machine backups were started before the Samsung SSD was installed, then that could be the problem and I would try setting up new TM backup on a different external drive or erase the current TM drive and start over.

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Answer 5

Dec 15, 2021 8:07 AM in response to den.thed

Yes, I understand it.
Clear.
Both APFS (screenshots)
First System — OS / Applications, Second Work — all work files.

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Answer 6

Dec 14, 2021 8:53 PM in response to den.thed

Hi den.thed.

I tried to add and delete the second disk in "exclude", but it does not work. On the size of the backup it can be seen that the second disk does not calculated.