Do It Yourself Apple Fusion Drive on Your Mac - How To - Speed Tests - Benchmarks

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Added 4 years ago by Voyage

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Here we offer directions on how to set up your own Fusion Drive on your Mac. We did this in a 2012 13" MacBook Pro with a 60 GB OCZ Agility 3 SSD and 5400 RPM Seagate HDD mounted in a superdrive hard drive replacement bay. You can use any combination of internal or external drives, as well as new or old Macs.

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Commands you'll need in order:

diskutil list

diskutil cs create Fusion diskx diskx

NOTE: You can replace Fusion with whatever you'd like to name your Logical Volume Group

diskutil cs list

diskutil coreStorage createVolume YOUR_DEVICE_ID_HERE jhfs+ "Macintosh Fusion" 100%

NOTE: You can replace "Macintosh Fusion" with whatver you want to name your drive. Remember to use ""'s if you want a space in your name like we did, otherwise you do not need them.

After installation is finished, open terminal and turn of indexing:

sudo mdutil -i off

If you would like to revert back to 2 separate drives, boot into the installer again, open Terminal and type:

diskutil cs delete YOUR_DEVICE_ID

You will then be able to format them however you'd like using Terminal or Disk Utility

Here is the Optical Bay Hard Drive Caddy we used : http://www.ebay.com/itm/SATA-to-SATA-2nd-HDD-HARD-DRIVE-9-5mm-Caddy-DVD-Optical-Bay-For-MAC-NON-UNIBODY-/261111191902?pt=US_Drive_Bay_Caddies&hash=item3ccb70995e

UPDATE 1 : TRIM Enabler does not work to enable TRIM. FileVault 2 does work just fine however.

UPDATE 2 : I was able to get TRIM to work only when using an internal SSD and external HDD.

UPDATE 3 : I have it working on 10.8.0, although I'd recommend staying up to date.

UPDATE 4 : To enable TRIM with Terminal, issue the following commands in order:

sudo cp /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage.original

sudo perl -pi -e 's|(\x52\x6F\x74\x61\x74\x69\x6F\x6E\x61\x6C\x00{1,20})[^\x00]{9}(\x00{1,20}\x51)|$1\x00\x00\x00\x00\x00\x00\x00\x00\x00$2|sg' /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage

sudo kextcache -system-prelinked-kernel (this might take a second, let it finish)

sudo kextcache -system-caches (same thing goes here, let it finish)

REBOOT

NOTE : This may only work with an internal SSD and external HDD. I haven't got it working with both internal yet.