Q: Fusion Drive 4TB + SSD m4 512 Go DEAD can't reformat
Hello,
I have an iMac 27 late 2010 i5 3.6 with 16 Go of RAM running 10.8.3
For Christmas, I received a M4 SSD 512 Go and decided to replace the 2TB in my iMac with a 4TB and create a Fusion Drive.
The operation worked beautifully and my iMac became incredibly fast, which was the goal.
Yesterday, the iMac did not start and I got the white screen with the spinning wheel. After reading about zapping the pram and Vram, nothing worked.
I booted from an external hard drive with Mac os X 10.8.2 and ran Disk Util to check the drive. I got a lot of red lines in the report and got the error Disk Utility can't repair this disk. back , reformat and restore.
I was able to copy some of the files on the drive and decided to reformat the drive.
Everytime I try to reformat the drive (4.4tB Fusion Drive) the mac shuts down and restarts.
I tried to un fuse the fusion drive and I get the same result. the screen goes black, the computer restarts and displays that the mac encountered a problem and had to restart.
when I type the commande in terminal diskutil cs file, I see the logical volume group.
When I do a diskutil cs Delete Volume xxxxxx xxxx xxx x x x x x x x
started CoreStorage operation on disk 2 iMac
Unmounting disk2
Removing Logical Volume from Logical Volume Group
...
then the mac shuts down and restarts.
it took me 2 hours to crack the beast open to perform the disk implant last christmas and it was scary. I thought I would never manage to close it properly.
I understand that this operation voided the warranty (i have the Apple Care for 3 years).
Any help greatly appreciated.
Thanks
Phil
iMac, OS X Mountain Lion (10.8.3), iMac 27 late 2010 i5 3.6 with 16 Go
Posted on May 10, 2013 7:29 PM