time machine disk full

You're not nuts. Several of us have been experiencing unexplainable massive backups where Time Machine seems to forget what it has already backed up and suddenly backs up a huge chunk, or all of the contents, of the main hard drive. It sounds like this is happening to you. Unfortunately, it looks like it's probably a bug. I haven't seen a good work around yet so hopefully Apple is working on.

<a href=://"http://discussions.apple.com/thread.jspa?threadID=1249158">Here is another thread where this is being discussed. Good luck, I hope we all find a solution.

Maybe you all have found the answer to the TM problem. I have not read all of the material on this site. However, about two weeks after I installed Leopard on my new iMac I got the error message from TM. At that time I noticed that there was only 17 gigs. of free space on my 500 gig. internal HD. I had had >270 gigs. shortly before. I had done some moving of photo files to another part of the drive and thought that I had just made a mistake-which may be true. In the end I reinstalled Leopard wiping out all of my folders. I than reinstalled them all from my TM backup and that went very well. Then after about a week I found out that I had not turned TM back on and nothing was being backed up. Same thing happened as below.

When TM gave you am error message that there was not enough space to complete the backup did you check your internal hard drive space to see if suddenly there was much less space than there was suppose to be? Somehow all of my free hard drive space had disappeared. I am not certain if it has to do with my iDisk syncing or not, but I had an extra 272 gigs in a folder called filesystems, I think. I should have written it down. I trashed it and I hope it continues to work right. I also got iDisk off of my desktop as it seemed to be syncing all of the time. For the last 24 hours I have not lost any of the free space on my internal drive.
I am just waiting for it to happen again.

Hello,

When i try to backup my laptop to the time machine i am getting disk full errors:

"This backup is too large for the backup volume. The backup requires 14.9 GB but only 2.6 GB are available"

Once the time machine disk gets full, isnt it suppose to delete the oldest backup to free up the space? Is this error fixed in the 10.5.2 update? What have been the resolutions around this? I hope apple engineers can get traction on this.....

Hate to tell you, but since I updated to 10.5.2, I am having time machine trouble on two separate macs backing up to two separate external hard drives. On one, I got a drive full message even when there was 750 gigs of space to back up a 230 gig drive with 120 gigs of data. On the other machine, Time Machine hangs up in the preparing state.

I have reinstalled the combo update. I have run a fsck -fy from startup. I have repaired permissions. My guess is that there is an error somewhere, and Apple needs to fix it.