Time Machine error

[Jamacfer]

Since updating to Sequoia my Time Machine backups have been failing during night. Every time I wake up the display, I get the same error: "Time Machine did not finish backing up because some files were unavailable. Backups will resume when your Mac is unlocked." My Mac actually never sleeps; I only put the display to sleep. The next backup after waking the display always works.
Anyone is having the same problem?

 

[basher]

Same for me. Restart/shutdown didn't fix things. Forcing a backup didn't fit things either.

For me it's hit or miss, but most of the time I get the same error message as you. I'm hoping an update will correct the issue.

 

[jetcomputer]

Same here...and I tried 3 different disks...

 

[BigBobbyD]

I had to uninstall and reinstall my TM with the Airport Utility and wait with Prepairing backup for 5 hours before it finally started and then the first sequoia backup took 7 hours to complete.
Some things I did notice, one, the new TM backup hates a Ethernet connection and actually disconnects the TM and fails after about an hour. 2. Using Wifi I turned off the Private Wifi Setting (got a warning) and disconnected the Ethernet cable. This seems to work since the MAC address rotation is turned off, which why in the hell Apple came up with that brilliant plan makes no sense to me since I limit my router access via MAC address and now that doesn't work after each reboot of my iMac.

This is getting so tiresome, not to mention that here in Germany they Gendered the computer with word phrases that aren't listed in any dictionary. To vent a little, this is my last Mac and as soon as it dies I will be switching permanently to linux

 

[c0rb4c]

Hi guys. Any solution here? Keep getting this annoying error while my Mac Studio is locked: files unavailable. Works fine when unlocked… tried to remove and add the TM setup (even format the whole target disk). Same feeling here: macOS is starting to seriously piss me off, not as much as Windows, but more than Linux for sure…

 

[Furby2005]

Keychain Access hasn't been deleted but moved to System/Library/CoreServices/Applications, and should still be working as before. I've updated three Macs to Sequoia and have so far had no issues with Time Machine accessing a Time Capsule. I can't offer any explanation as to why your backups aren't currently working I'm afraid, but I can confirm that all the necessary software is still present and correct in Sequoia.

 

[kraiggers]

Hi guys. Any solution here? Keep getting this annoying error while my Mac Studio is locked: files unavailable. Works fine when unlocked… tried to remove and add the TM setup (even format the whole target disk). Same feeling here: macOS is starting to seriously piss me off, not as much as Windows, but more than Linux for sure…

Same exact issue here. Really annoying. Not seeing a ton of reports about it; this thread one the very few/only…

 

[Alameda]

What dumbass programmed this stupidity? Let me guess, DEI

Silicon Valley has always been extremely diverse and you wouldn’t hold a job there for five minutes with your attitude. Your Mac hardware and software was engineered by talented people of every gender, race, ethnicity and sexual orientation.

 

[iammike1]

What dumbass programmed this stupidity? Let me guess, DEI

The only dumbass I see around here is you.

Anyway, just tossing my name in the hat of those getting the TM error on wake. I'm currently on 15.1 PB so guess we'll place our hopes in 15.2 at this rate.

 

[McMario]

still broken here as well. seems to be even worse, as it doesnt even run anymore even when unlocked...

isnt there anything that can be done?

I am using synology nas, latest patchlevel, ran fine until sequoia.

 

[iammike1]

still broken here as well. seems to be even worse, as it doesnt even run anymore even when unlocked...

isnt there anything that can be done?

I am using synology nas, latest patchlevel, ran fine until sequoia.

Hmmm, mine is still running fine when awake but it's directly connected to my Mac via TB. Might have two different issues presenting themselves here. TM in general and TM over network.

 

[Alameda]

still broken here as well. seems to be even worse, as it doesnt even run anymore even when unlocked...

isnt there anything that can be done?

I am using synology nas, latest patchlevel, ran fine until sequoia.

It's working fine for me. Maybe check your setup?
SpaceRex has an excellent YouTube video about setting up Synology for Time Machine. Here are the key points:


Open Control Panel on your Synology.
Under Shared Folder:

• Recommend Btrfs filesystem not ExT4 or ExT3
• Disable Recycle Bin
• No encryption because we encrypt via MacOS
• Recommends Data Checksum
• Disable compression
• Enable shared folder quota that’s about 1.5x to 2x the size of your drive. You can expand this later but you can’t shrink it.
• Give the account user Read/Write permission.

Under File Services:

• Enable SMB and disable AFP. Apple removed AFP support in MacOS Big Sur.

If you use snapshots, limit the Time Machine shared folder on your Synology to one snapshot a week, two or three snapshots max.

 

[McMario]

It's working fine for me. Maybe check your setup?
SpaceRex has an excellent YouTube video about setting up Synology for Time Machine. Here are the key points:


Open Control Panel on your Synology.
Under Shared Folder:

• Recommend Btrfs filesystem not ExT4 or ExT3
• Disable Recycle Bin
• No encryption because we encrypt via MacOS
• Recommends Data Checksum
• Disable compression
• Enable shared folder quota that’s about 1.5x to 2x the size of your drive. You can expand this later but you can’t shrink it.
• Give the account user Read/Write permission.

Under File Services:

• Enable SMB and disable AFP. Apple removed AFP support in MacOS Big Sur.

If you use snapshots, limit the Time Machine shared folder on your Synology to one snapshot a week, two or three snapshots max.

thanks, thats a good, comprehensive checklist!

so in my case, all my diskstation have that setup, since quite a few years now. i am using this setup for over ten years, there have been issues once in a while, but righth now it is a catastrophy. since sequoia it is onlx getting worse, lost backups, started new ones, now it is refusing to backup since one week.

firewall off doesnt help anymore since 15.1, its really very disappointing. no excuse if this is an macos problem, this is so much unprofessional....

 

[Alameda]

thanks, thats a good, comprehensive checklist!

so in my case, all my diskstation have that setup, since quite a few years now. i am using this setup for over ten years, there have been issues once in a while, but righth now it is a catastrophy. since sequoia it is onlx getting worse, lost backups, started new ones, now it is refusing to backup since one week.

firewall off doesnt help anymore since 15.1, its really very disappointing. no excuse if this is an macos problem, this is so much unprofessional....

I had a glitch with mine today. Time Machine couldn’t find the backup drive. I even mounted it on my desktop and it couldn’t find it!

Rebooting the Mac fixed it.