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The original was posted on /r/ubiquiti by /u/ostrichsak on 2023-08-20 02:56:43+00:00.
Currently have a UDM Pro that's been working pretty well, for the most part. I had a recent scare where it seemingly reset itself. Fortunately it was a Saturday morning so the only thing that was affected was my gaming time while the wife slept in. Had it been during a weekday (I WFH) it would have been a different story. Without any reason it seemingly fixed itself almost as mysteriously as it initially went down. No clue what happened or what fixed it. Magic I suppose. *shrugs*
During this time and via some cursory Google'ing I discovered that this appears to be a semi-common occurrence with these devices. I decided that a 2nd UDM would be a wise investment just in case this happened again and I wasn't as lucky this time and it either 1) happened on a weekday or 2) took longer to self-correct or maybe didn't recover at all.
My plan was to add a 2nd UDM Pro into my rack just above my switch (current UDM Pro is below) so that if something happened I could swap connections over, boot up and be running again in pretty short order. We recently switched from Xfinity cable to municipal fiber so I've also been considering something like the LTE Backup Professional as a failover while I'm building redundancy into my network but, that's another conversation for another day (probably sooner than later).
One step at a time.
Hoping to get some guidance on how to best go about my idea. I have automatic cloud backups being saved automatically but, after some reading it appears as though there's been some issues possibly based on some reports and relying on these isn't a good idea. I just made a local backup which I intend to do monthly ongoing.
Is this is simple as plugging the new UDM Pro into the rack, moving connections, powering up to install the backup (I'll try the cloud option first just to test how my backups are) and then returning to normal? In the event of a failure would I just move my connections, power up the backup and go on with life?
I'm not a networking expert so... is this the best way to go about this? Just leaving the 2nd UDM Pro off but in the rack rather than having it powered up? In my mind, having them both up and running when only 1 is in-use is doubling the wear & tear and potential for failure rather than just having a cold backup in my network rack with a recent update installed ready to roll in the event of the hot UDM Pro taking itself out of commission, for whatever reason.
Thanks for the input!