Time Machine not running since El Cap install

[Shaaun]

I noticed tonight that my Time Machine hasn't run since I manually forced a backup right after I installed El Cap. I'm on a 2010 Mac Pro and my TM disk in one of the internal bays.

Not errors from TM. Disk was mounted and shown. TM just said Last backup was 9/30.

However, while I could successfully do a manual backup, it would never back up it's own. If I did a manual backup at 4:30 today.....it would say next backup at 5:30. But when 5:30 came, no backup. The time would then change to 6:30.

Anyone seen anything like this? I ended up wiping the drive and starting over....will see if that solves it. Never had this behavior before.

-Kevin

I had the same issue i had restored my Mac back to 10.10.X then Update to 10.11 again and that resolved the issue.

 

[Mattww]

10.11.2 fixed it for me it seems

 

[AlteMac]

10.11.2 fixed it for me it seems

Seems to be working as it should for me on 10.11.2.

 

[HiVolt]

Yep confirmed fixed here as well.

 

[ledzep1]

Hi

On 10.11.3, updated from Yosemite last week.

Time machine is skipping hourly backups all the time, it only seems to do a backup when I wake my iMac from sleep. I have tried formatting hdd and starting over, ejecting hdd, restarting iMac.

Even when Im using the iMac I notice it skipping the backups and rescheduling in the next hour but that then skips as well.

Seeing that it seems to be fixed for some Im unsure why I have this problem.

 

[Pop11]

Hi

On 10.11.3, updated from Yosemite last week.

Time machine is skipping hourly backups all the time, it only seems to do a backup when I wake my iMac from sleep. I have tried formatting hdd and starting over, ejecting hdd, restarting iMac.

Even when Im using the iMac I notice it skipping the backups and rescheduling in the next hour but that then skips as well.

Seeing that it seems to be fixed for some Im unsure why I have this problem.

Are you using an uninterruptible power supply, by any chance? That seemed to be the common factor for those of us experiencing the problem. OSX was treating my iMac + UPS setup like a MacBook running on battery power and pausing the Time Machine backups.

Having said that, the problem is now fixed for me (10.11.3).

 

[Riwam]

Hi

On 10.11.3, updated from Yosemite last week.

Time machine is skipping hourly backups all the time, it only seems to do a backup when I wake my iMac from sleep. I have tried formatting hdd and starting over, ejecting hdd, restarting iMac.

Even when Im using the iMac I notice it skipping the backups and rescheduling in the next hour but that then skips as well.

Seeing that it seems to be fixed for some Im unsure why I have this problem.

*****
It won't help you or anbody else unfortunately, to know another bug.
I get all the time warnings of not having properly ejected my Time Machine LaCie external drive...although not having actually disconnected anything.
Somehow the system ejects it or believes it does it, without my intervention.
Ed

 

[^^BIGMac]

*****
It won't help you or anbody else unfortunately, to know another bug.
I get all the time warnings of not having properly ejected my Time Machine LaCie external drive...although not having actually disconnected anything.
Somehow the system ejects it or believes it does it, without my intervention.
Ed

I just got my new iMac and am having this same problem with my LaCie external HHD. Telling me it wasn't ejected properly. Computer just went to sleep and it thinks the HDD was ejected.

Also the light on the HDD is intermit flashing on and off for some reason instead of staying on solid blue.

Is upgrading to 10.11.3 going to help this issue?

Edit: BTW I checked the "Prevent Computer from Sleeping Automatically" and it seemed to stop the ejected improperly problem. But why is the HDD flashing the blue light off and on? Never did that before under Mavericks.

 

[ledzep1]

Are you using an uninterruptible power supply, by any chance? That seemed to be the common factor for those of us experiencing the problem. OSX was treating my iMac + UPS setup like a MacBook running on battery power and pausing the Time Machine backups.

Having said that, the problem is now fixed for me (10.11.3).

Hi

Erm, sorry not very techie, but If you mean like some sort of backup power source in case my mains power fails, then no.

My hdd that I use for time machine is a "my passport" 2tb connected via USB to my iMac.

@BigMac, my external hdd's blue light flashes as well when my iMac sleeps, I thought it was some kind low power sleep mode.