I recently fixed a long standing backup problem where my local hard drive was too small to fit my backups. Now I have a new issue... the backup completes, along with a external HD copy, but hangs when uploading to AC. I didn't have this problem before when the backups were failing due to space... no issues uploading bad, incomplete, backups... but now that my backups are up to 30+ GBs, I can't seem to get them to upload. What's the largest backup size you've been able to successfully upload?
First, are you still backing up to a local drive? That probably isn't that helpful. The largest backup you can do online would be one that doesn't take longer than four or five hours. You are completely limited by bandwidth. Say, you are using eSATA external drives. Your transfer speed will be 3Gb/s. Say, you are lucky and have fast upload speed on your Internet. You may get 5Mb/s. Even using USB2.0, you will get 480Mbs although there are issues of overhead and burst speed, etc. So can you see where the USB2 is going to be 100 times faster than your upload.
Uploading your imported items (as Wendell says) just isn't a good idea. Just back them up to an external drive and back up your REALLY important data using the AC backup.
Again, Wendell, is correct about your amount of data. 30GBs is a HUGE amount. I have been doing this seven years, and I have around 6GBs of data.
If you must back up offline, use Jungle Disk or something like that. This way you aren't backing up the same data over and over. You can use dedupe which is waaaaayyyyy more efficient.
