Off-site backup OSX Tahoe 26.1

To truly protect your non replaceable Data

Have a 3-2-1 Rescue Plan in place and always current

3 Backups using 2 methods and 1 off site incase of natural disaster or un-natural disaster.

Each of the above should be done to a Dedicated Single Purposed External Drive 

Below link is intended to augment what TM Backup does 

https://bombich.com

https://support.bombich.com/hc/en-us/articles/20686495048215-Choosing-a-backup-drive

Personally, I have a pair of SSDs that I use alternately for a weekly TM backup of my home Macs, and swap them to my office desk every week. Physical media, stored offsite.

The simplest option for a cloud backup would be to use iCloud and turn on Desktop & Documents sync, but that is syncing not a true backup.

caredes255 wrote:

How can I make an off site backup from my iMac with OSX Tahoe 26.1

A Cloud Based Backup may or may not suit your needs

https://www.backblaze.com/cloud-backup/personal/compare/backup-services

Full Disclosure.

I do not recommend a Cloud Based Backup Strategy simple because when the Backup is really needed

More often than not, the computer is in a condition where Internet Access is iffy or too time consuming to use the Cloud Backup in a timely manner

FWIW, Time Machine on Tahoe will not back up the OS, only the data, if that's what you're asking.

caredes255 wrote:

And I do wonder if Bladblazer takes all these things into account.

Assuming you mean Backblaze you can always ask them.

Creating legacy bootable copies of macOS

CCC reported that the APFS replication failed

I think I misunderstood your intent. If the solution was to use an NAS, I would not consider that to be an 'off-site' backup (unless your NAS is in another physical location from your iMac). Generally speaking, a 'local' backup is one that is stored in the same location (home, office, etc.) as the device being backed up and an 'off-site' is stored somewhere else. The idea is that if disaster strikes, you still have your data.

In my case, my local backups for 5 Macs in the house are to an NAS, and the pair of SSDs I mentioned previously in this thread are my offsite backup because I keep one in a drawer in my office that is in a different location from my home. The idea is that if my house burns down, we lose the computers and the NAS...but the SSD in office is safe and not older than 2 weeks so I can replace the Macs, set them up from the TM backup on the SSD, and everyone is good to go (except missing 1-2 weeks of the most recent data, probably a minor concern in the face of missing clothing and shelter).