Here is a Step-By-Step Tutorial of How I created Fusion Drive on MacBook Pro (Late 2011)
I used the Following Hardware:
SSD: 240 GB OCZ VERTEX 3 (Link)
HDD: 1TB Western Digital Scorpio Blue WD10JPVT (Link)
HDD Caddy: 2.HDD SATA Adapter für MacBook pro 9.5mm (Link) (Actually it was not 100% suitable but it fitted inside)
External slim Drive Case (Link)
Let the work begin:
1. I Backed up the whole Drive using Carbon Copy Cloner to a new Disk Image on an external USB Drive.
(It took about 2,5 hours for 240GB)
2. I had already replaced the original Hitachi 500GB HDD By the 240GB SSD
3. I replaced the Optical Drive by The Caddy and the 1TB HDD. See Replacement Tutorial Here: http://www.youtube.com/watch?v=yvdAN_caP9E
4. I booted up the MacBook normally, the second HDD appeared and Disk Utility asked to initialize. I said yes and Formatted it as HFS+ (Journaled) which is the default.
5. I rebooted again in target mode by holding down "t" button and connected my macbook via Firewire with an iMac
6. Both drives appeared and got mounted, then I opened Terminal and done the following:
(Thanks to jollyjinx)
List all Drives
/dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk0 1: EFI 209.7 MB disk0s1 2: Apple_HFS mac-137 499.0 GB disk0s2 3: Microsoft Basic Data WINDOWS 500.9 GB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: Apple_partition_scheme *35.6 MB disk1 1: Apple_partition_map 32.3 KB disk1s1 2: Apple_HFS ARD 35.5 MB disk1s2 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk2 1: EFI 209.7 MB disk2s1 2: Apple_HFS HDD 999.9 GB disk2s2 /dev/disk3 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *240.1 GB disk3 1: EFI 209.7 MB disk3s1 2: Apple_HFS Macintosh HD 239.0 GB disk3s2 3: Apple_Boot Recovery HD 700.0 MB disk3s3
In my case the SSD inside the MacBook was disk3 and the 2nd HDD was disk2
diskutil cs create FusionDrive disk3 disk2
Started CoreStorage operation Unmounting disk3 Repartitioning disk3 Unmounting disk Creating the partition map Rediscovering disk3 Adding disk3s2 to Logical Volume Group Unmounting disk2 Repartitioning disk2 Unmounting disk Creating the partition map Rediscovering disk2 Adding disk2s2 to Logical Volume Group Creating Core Storage Logical Volume Group Switching disk3s2 to Core Storage Switching disk2s2 to Core Storage Waiting for Logical Volume Group to appear Discovered new Logical Volume Group "2B4EDB74-5842-40E4-8398-1567CD879127" Core Storage LVG UUID: 2B4EDB74-5842-40E4-8398-1567CD879127 Finished CoreStorage operation
diskutil cs list
CoreStorage logical volume groups (1 found) | +-- Logical Volume Group 2B4EDB74-5842-40E4-8398-1567CD879127 ========================================================= Name: FusionDrive Size: 1239574347776 B (1.2 TB) Free Space: 1235270975488 B (1.2 TB) | +-< Physical Volume C4AEC50E-CA5A-4F01-A1D4-0E821B78488C | ---------------------------------------------------- | Index: 0 | Disk: disk3s2 | Status: Online | Size: 239713435648 B (239.7 GB) | +-< Physical Volume 1B357448-93BE-4D62-BB93-09E7E95A66DB ---------------------------------------------------- Index: 1 Disk: disk2s2 Status: Online Size: 999860912128 B (999.9 GB)
Copy the ID Shown for Logical Volume Group
diskutil coreStorage createVolume 2B4EDB74-5842-40E4-8398-1567CD879127 jhfs+ FusionDrive 100%
Started CoreStorage operation Waiting for Logical Volume to appear Formatting file system for Logical Volume Initialized /dev/rdisk1 as a 1 TB HFS Plus volume with a 98304k journal Mounting disk Core Storage LV UUID: 3D2C216E-D29B-4EF2-AE8F-58CCDA0488FE Core Storage disk: disk1 Finished CoreStorage operation
Now the Fusion Drive has been already created.
7. The Final Step was to restore the backup image. So I used Carbon Copy Cloner again to restore the image to my Fusion Drive
I used Black Magic Disk Speed Test, to test the performance. I reached write speed 250 MB/s and read speed of 400 MB/s
It is slower than before when I was using only the SSD, where I had more than 500 MB/s read speed. But still faster than an HDD.
Anyhow I can live with it.
I almost forgot to say, I inserted the optical drive inside the slim case and now I have a nice external usb optical drive if needed.
Good Luck with your Fusion Drive
to verify type this command to see the activity of each drive:
iostat disk0 disk1 1
(replace disk0 and disk1 by the correct disk ids of your ssd and hdd)
to get the ids you need, run: