SuperDuper won't backup MBP Hard Drive-Giving Error Code

[markwco]

I have a OS X Lion 10.7.3 based Macbook Pro and use the newest version of SuperDuper to do backups. I back up to an OWC external hard drive. I have used this system for around 3 years on multiple laptops/drives with no problems.
For some reason it won't work now on my Macbook Pro. When I backup it fails at a certain part of the backup. I thought it was simply my system had too much open and was running slow so did a restart and didn't open anything other than SuperDuper but that did not fix it. Then I thought it was a bad Firewire 800 cable so tried a 2nd one with no luck. Then I tried a USB 2.0 cable with no luck.
I then figured that either my laptop's hard drive or my OWC hard drive is going bad. I realized that the error where it fails occurs at the same part of the backup almost everytime.
I then realized you can view the log of the backup and I did that and looking at the bottom I see where the problem is. Here is that part of the log:

| 02:50:17 AM | Info | /Users
| 02:56:21 AM | Info | /.Trashes
| 02:56:21 AM | Info | /.Spotlight-V100
| 02:56:21 AM | Info | Preserving /.Spotlight-V100
| 02:56:36 AM | Info | /.MobileBackups
| 02:56:36 AM | Info | Error copying /.MobileBackups/Computer/2012-04-22-102239/Volume/Users/Mark/Library/Thunderbird/Profiles/mt8wlqz7.default/Mail/Local Folders/AVC.sbd/Ordered Items to /Volumes/OWC On The Go/.MobileBackups/Computer/2012-04-22-102239/Volume/Users/Mark/Library/Thunderbird/Profiles/mt8wlqz7.default/Mail/Local Folders/AVC.sbd/Ordered Items of type 8 due to error 28
| 02:56:36 AM | Error | SDCopy: Error copying /.MobileBackups/Computer/2012-04-22-102239/Volume/Users/Mark/Library/Thunderbird/Profiles/mt8wlqz7.default/Mail/Local Folders/AVC.sbd/Ordered Items to /Volumes/OWC On The Go/.MobileBackups/Computer/2012-04-22-102239/Volume/Users/Mark/Library/Thunderbird/Profiles/mt8wlqz7.default/Mail/Local Folders/AVC.sbd/Ordered Items of type 8 due to error 28: No space left on device

I don't know enough about this type of thing to know what the means. I use Mozilla Thunderbird for email and Ordered Items is one of my categories on the local computer in Thunderbird.

Does this appear to be a problem with the hard drive or is it possibly some type of corrupt file that I have to remove or repair?

Thanks for your help.

 

[louishen]

Its says no space left on device, is your backup disk full

 

[markwco]

I'm not sure why it's giving the no space left on device error code. My internal MBP hard drive has 145GB free and the external backup drive has approximately 260GB free.

 

[chscag]

The error is clearly stating you're out of disk space. Perhaps files that are hidden? Download the free Disk Inventory X to see what's taking up the space.

 

[markwco]

The error was odd. What I did is ending up going into Thunderbird and moving all msgs from that directory, ordered items, to another folder temporarily. I then deleted the Ordered Items folder, then made a new ordered items folder and then moved all those emails back there. I then did a backup and it worked fine. It is odd since as you said the msg clearly said it was out of disk space but it appears it was likely a corrupted folder (files)