Using IMac intel 27" with 10.8.3.
I have two brand new 1TB G-Drive Genartion4 external drives, one for Time Machine and the other for CCC clone. The first drive is into the IMac with FW800 and the opther is daisy chained into that drive with FW800.They worked fine but suddenly message that both Time Machine and CCC couldn't be used because they were unwritable. I used Disk Utility and Drive Genius3 to check/repair permissions and reformatted them. They worked for a day or two and received the same error. I even went back to the disks and manually changed the settings making writable for everyone. That dis not work
Called G-Drive and the support team had me eject them and unplug the FW800 and plug each in one at a time. That worked and the next day both drives were unwritable again. I have repartitioned these about 5-6 times and the problem continues. I have a call in to their tech support and communicating with support from Hitachi through email. In his last emai probably before they closed yesterday, he suggested it might be an OS issue. I sent the IMac info and expect to hear from him Monday.
I will call Apple support on Monday. In the meantime, is there anyone who have had this issue and have knowledge of what might be the OS issue and is this something I can fix myself? Is it just this Mac and G-Drive or have others had this same problem? Would appreciate any suggestions or assistance anyone can give me.
So i seem to have resolved my problem by switching to a Firewire 800 cable from Western Digital (old drive that went KABLAWEE)
Since swapping the cable for the old on not problems with the drive
Hope this helps some of you