04-24-2012, 06:26 AM
I have been using an external HD LaCie d2 quadra 1TB for backing up my MAC data since January 2011. The last successful backup was on 20.04.2012 and since then my Time Machine could no longer perform backup on this HD.
The Time Machine error message I got was:
Files can't be copied onto the backup disk because it appears to be 'read only'.
Then I performed Verify Disk using Disk Utility. It failed to verify with the following message:-
Invalid Key Length
The volumn LaCie could not be verified completely.
Error: This disk needs to be repaired Click Repair Disk.
Then I performed Repair Disk. This has failed too with the following message:-
Error: Disk Utility can't repair this disk...disk, and restore your backed-up files.
I have no idea what is wrong with the HD LaCie. It has been working very well until 20.04.2012.
Has anyone have this problem before? I hope someone is kind to help before I perform erase or reformat disk. I hope I don't need to.
Appreciate a quick response from someone...
Thanks in advance!