![]() ![]() ![]() Step 5 – Navigate to Contents > Shared Support. Step 4 – Right click on the package icon and select Show Package Contents. The Mountain Lion install package will show up in the Applications folder once downloaded. Step 3 – Move the Installer to your Desktop. ***you may need to actually purchase ML if it does not show in the Purchases screen. You can do this by going to App Store > Purchases > Click the Download button to the right of OS X Mountain Lion. This is the only way to assure you have the correct version of Disk Utility on your recovery partition. To further clarify, we’re talking about the FULL VERSION – not the update. Step 2 – Download 10.8.3 from the App Store.Īnd here’s the caveat I mentioned earlier: At this time, you absolutely need to download OS X 10.8.3 from the Mac App Store. If you’re using the same drive that you already have installed, you will need to copy that drive’s contents to an external one. If you are installing both a new SSD and a new platter-based drive into, you can put your original drive in an external enclosure, and your data will be there, out of the way. This process will erase both the installed SSD and hard drive, so if you have data on one or both of these drives, you’ll want to have a copy that’s not on either of the two drives that are going to be part of the Fusion array. Step 1 – Have a copy of your computer’s data. An external hard drive or USB flash drive that is 8GB or larger to boot your OS X 10.8.3 installer.An external drive to clone to or a Time Machine backup drive – creating a Fusion volume will erase both the SSD and the hard drive, so if you have information on the hard drive you want to keep, you’ll need to have a copy of that data elsewhere.A hard drive and an SSD installed/to install internally – Fusion is designed to work on internal drives only.So that’s the iMac (2009 or newer), MacBook (Late 2008 Aluminum, or Early 2009 or newer) with Data Doubler, or MacBook Pro (Late 2008 or newer) again with Data Doubler, Mac mini (Early / Late 2009, Mid 2010 Server, and Mid 2011 or newer) with Data Doubler Kit or Data Doubler where applicable, or Mac Pro (Early 2008 or newer). A Mac that you can install both a Solid State Drive and a Hard Disk Drive into.So, now that you know the difference, the question on everyone’s mind is… How Do I Create A True DIY Fusion Drive? Items Needed: The way a Core Storage volume works, it really makes people think they’ve created a true Fusion drive. And even then – what’s on the SSD continues to be read at full SSD speed, so it’s only the new data writes (where existing data on SSD is not being replaced) and subsequent reads of that HDD stored data that are slower due to being on the HDD. ![]() ![]() You don’t find out that it’s not truly ‘Fusion’ until the SSD portion has been completely filled up. Until now, we’ve only seen that software component in the 2012 Mac mini and 2012 iMac models that ship with their specific builds of 10.8.2 It needs the software to run the automated storage tiering to make it a true Fusion Drive. Most of the terminal command setups we’ve seen online are only initiating that Core Storage volume. Prior to the automation software, this type of data manipulation was done manually. This has actually been around since 2005 on larger scale networks where the software moves data across different disk types and RAID levels in order to balance space, cost and performance requirements of a server. What turns a Core Storage drive into a Fusion drive is the introduction of automated storage tiering to mix. Which makes the Fusion drive possible, but it isn’t the only aspect. The key factor to Core Storage is that it allows a single volume to span multiple physical disks. When Apple introduced Lion, they added a logical volume manager (Core Storage) to the OS. I’ve addressed a lot of this information in comments on the OWC Blog, but figure it would be a good idea to review and further explain what a Fusion drive actually is as opposed to a Core Storage volume. They are two similar, yet different drive configurations. There have been many tutorials on how to create a Core Storage volume that have been labeled as “how to create a Fusion drive”. Up until now, most of the reports you’ve read about creating your own DIY Fusion drive on a machine have been incomplete. The Profusion Of Fusion Confusionīut before we get to showing you exactly how to setup your own DIY Fusion drive, I’d like to dispel some mis-information that has been floating around the web. A little over a week ago, Apple released OS X version 10.8.3 and, with one small caveat, our hopes were fulfilled. We’ve been waiting and waiting for Apple to release the next version of OS X Mountain Lion in hopes that the next full version would have all the necessary components to setup a Fusion drive on any Mac capable of installing a hard drive and SSD together. ![]()
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