How to create a Fusion Drive
1. Always first Backup all data on an external drive. Best usage CCC for a bootable system.
2. Prepare for all steps to follow and be sure to understand the procedures fully.
When you setup a Fusion Drive (conventional Hard Drive and SSD Fused together) both drives will be erased and can only be used (both) to each 100% for such setup.
A. Startup from an external hard drive since, when you start to set the Fusion system up, NOTHING can run on the drives you want to fuse.
You also can (and I suggest to do so) reformat both drives first via "Disk Utility" to be sure to have a clean system.
B. Open "Terminal" (inside the Utilities Folder or via the top menu if you are using the Restore Disk form one other Drive).
C. At the insert point enter: diskutil coreStorage then hit "Enter" (also known as "return").
D. The Terminal should respond with the following:
E. Select the Drives you want to fuse, to do that enter into Terminal diskutil list followed by "Enter" (also known as "return"). The next window should look similar to the following:
F. Take note of the first line (/dev/disk#) whereas the # indicates the number of which disk is which. This is important for the next step. Be sure you select the right ones.
G. Now enter into the Terminal diskutil coreStorage create myLogicalVolGroup /dev/disk# /dev/disk# whereas # represents the number of the drive you want to select to be fused followed by "return".
The following window shows after a short time:
H. Take note of the identifier for the "discovered new Logical Volume Group" or the "Core Storage LVG UUID" both are the same ID.
I. Now enter diskutil coreStorage createVolume 50B457C3-ADC6-4EDC-9ABA-FD8C6EEDE69A jhfs+ "Macintosh HD" 100% whereas (50B457C3-ADC6-4EDC-9ABA-FD8C6EEDE69A) must be the number you wrote down from step H. When you now hit "return" the system will setup the fused drive.
The next window should show:
J. You are done. Now install the operating system, your Apps and your files back from your backup onto the newly created fusion drive and you will enjoy a speedy process.
Short Setup Info:
Enter into Terminal: diskutil list
Note Disk ID /dev/disk# to be fused
Enter into Terminal: diskutil coreStorage create myLogicalVolGroup /dev/disk0 /dev/disk1
Note "Logical Volume Group" ID (five mixed Numerical and Letter Groups)
Enter into Terminal: diskutil coreStorage createVolume (five mixed Numerical and Letter Groups) jhfs+ "Macintosh HD" 100%
Hi Vanessa i found this:
Fusion Drive and Boot Camp
Since Fusion Drive depends on software technology built into OS X, Windows doesn't support it. This doesn't mean Windows can't be installed on a Mac with a Fusion Drive, but Boot Camp Assistant will only create a partition on the hard drive.
However, there is an issue with installing on a 3TB drive, whether that's a Fusion Drive or a garden-variety hard drive. Apple acknowledges that Boot Camp Assistant won't work with drives of this capacity. The maker of WinClone, an app which backs up Boot Camp partitions from within OS X,detailed the reason for this and how to overcome it.
I hope it helps you,
You can find the complete story on:
Your story helped me , because i became curious about what a fusion drive does exactly after reading your post, and then i think i found the answer to your question.
I like how the fusion drive operates but by combining the two drives in my macbook pro i will lose the option of having an internal timecapsule, which i really like for some reason... (i also have an external one for double savety) I still have to think about it. Maybe its possible to first seperate the hdd into two partitions and then combine only one of them with the ssd to make a fusion drive... If the ssd ever fails i will still have timecapsule and after putting in a new ssd and emptying the fusion partition on the hdd i could make a new fusion drive and restore it from the time capsule.
I not sure though it might be a lot of costly space to keep having an internal timemachine... maybe its just that i like the idea.
Let me know if any of these thoughts helped you (or anyone else who reads this ofcourse)
Good luck with it, Gijs