Apple's branding of a tiered storage solution where an SSD and HDD are combined using core storage to appear as one fast and spacious drive.

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Neither Boot Camp Assistant nor Disk Utility can repartition my Fusion drive [duplicate]

After playing around with Boot Camp, trying to install Windows 8.1 on my Retina iMac with Fusion drive (it didn't work), I'm left with a partition scheme that neither Boot Camp Assistant nor Disk ...
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2answers
71 views

Fix a DIY Fusion Drive

A few weeks ago, I took out my early 2011 13-inch MBP's optical drive, put my 500GB HDD in the optical drive area, put a 120GB SSD where the HDD used to live, and made a DIY Fusion Drive according to ...
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28 views

Fusion drive upgrade: how to get my installation back afterwards?

I'm planning an upgrade of my iMac 27". An SSD will be added and combined with the existing HDD into a Fusion Drive. I have just reinstalled everything recently and like to keep this installation. My ...
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1answer
636 views

Upgrade to Yosemite with two hard drives in iMac

I'm running 10.9.5 on an iMac, where I have two hard drives (SSD + HDD) and Superdrive installed. The way the disks are mounted is not conventional: /dev/disk0s2 on / (hfs, local, journaled) devfs on ...
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2answers
121 views

Does a Boot Camped Windows alongside a Mac OS X partition profit from a Fusion drive like Mac OS X does?

While writing an answer to this question Should I defrag my SSD before creating a partition for Boot Camp? i wondered if a Boot Camped Windows profits from a Fusion drive like OS X on the same drive ...
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0answers
21 views

Can you add a 3rd-party hybrid disk to a 2012 Mac Mini?

The Apple Fusion drive is done predominantly through clever software, I wondered what happens if instead of trying to do a DIY Fusion with 2 drives, you just replace the standard fixed drive with a ...
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0answers
58 views

Create your own Fusion Drive?

Is a Fusion hybrid drive anything special in terms of hardware, or is it literally a SSD drive and a regular disk glued into one box, and all the Fusion "magic" is done by software? Can you get ...
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0answers
80 views

Double Fusion Drive Volume in Startup Menu after DIY Drive Fusion

After replacing the SuperDrive in my MacBook Pro I copied the Recovery HD to a USB stick and booted from it. Then I ran diskutil cs create MacintoshFusionDrive /dev/disk0 /dev/disk1 (SSD, HDD), ...
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0answers
133 views

Make an external DIY Fusion Drive

Last year, I created a Fusion Drive in my 13" MB (2008) by replacing the optical drive with a SSD and link it with the internal HDD by some terminal-magic from a computer magazine. It worked like a ...
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1answer
157 views

Fusion Drive constantly spinning up and down

I've got a 1TB Fusion Drive (with a Seagate 7200 rpm hard drive) in a Late 2013 27" iMac. While the iMac is asleep, the hard drive spins up and down every minute or so (without fail), creating an ...
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1answer
277 views

Can I upgrade the size of my Fusion Drive from 1TB to 3TB?

I bought a new iMac last summer and went with the 1TB Fusion drive. It works well, but is already full. Is it possible to upgrade the size of the fusion drive myself? Can I buy a 3TB internal drive ...
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1answer
100 views

RAID 0 On 21.5" iMac Late-2012

I am about to get my fusion drive upgraded to a 256gb SSD on my Late-2012 21.5" iMac that I got from work (don't worry I have a company upgrading it, and yes they know its a Late-2012 iMac). When ...
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1answer
249 views

Is there a way to change order of physical disks in Corestorage

I upgraded existing system to a "Fusion drive" - corestorage volume - consisting of existing 300GB HDD and new 120GB SSD. Instead of creating a new corestorage drive I went with the route of ...
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1answer
123 views

FusionDrive seems to not use SSD

I'm trying to make a homebrew FD of 500GB HDD and 128GB SSD. I'm using Maverics 10.9.1 and MD101 MBP. What I did was: install HDD into superdrive bay install SSD into HDD compartment use diskutil ...
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67 views

Has somebody upgraded an 27" iMac with Gravis Fusion drive?

Gravis offers to upgrade my Mid 2011 iMac (27") with a 250GB Samsung Fusion drive for around €400. They claim I can even keep my original 2TB HDD and my Super Drive. They say, they find space inside ...
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1answer
148 views

Rebuilding Fusion Drive

I have a Fusion Drive (10.9.1) with a 256GB SSD and a 1TB HDD. The 1TB HDD has started making noises and has reported SMART errors. It is apparent that it will fail any day. I have Time Machine ...
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3answers
3k views

Fusion Drive, Bootcamp and FileVault - with working Recovery HD?

since I experimented a lot on this issue without coming to a solution, I hope someone else could help me with it. I've got currently running a setup with those partitions: Fusion Drive ...
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2answers
4k views

New iMac (mid 2013) storage options

I recently purchased a maxed out iMac: NVIDIAGeForceGTX780M 4GB GDDR5 3.5GHz Quad-core Intel Core i7 8GB 1600MHz DDR3 SDRAM-2X4GB (upgrading to 32GB myself) 256GB Flash Storage ...and I'm ...
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2answers
157 views

FusionDrive + Encrypted CoreStorage Volume - Problems writing to volume

Has anyone had experience with encrypted (home made!) FusionDrive volumes and intermittent failure of writes to this disk? I'm on a Late 2011 MBP 13" with (currently) 4 GB RAM, a 128 GB SSD and a 750 ...
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1answer
2k views

Name-error when formatting NTFS on OS X 10.8.4 using “diskutil” (Terminal)

I have a 2011 Macbook Pro 13 inch - OS X 10.8.4 (Mountain Lion), which i upgraded with a SSD. I installed the original HDD as second drive instead of the optical. I need to change the filesystem for ...
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1answer
1k views

Is Mac Mini's Fusion drive useful if I mostly use windows 8 through Bootcamp?

I am considering of buying a Mac Mini with a 1TB Fusion Drive. However I will rarely use OSX (except for iPhone application development) and will mostly be running Windows 8 through Bootcamp. In this ...
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1answer
662 views

Fusion Drive: free space on SSD

Is there a possibility to find out how much storage is free on a SSD of a Fusion Drive disk (SSD + HDD as a logical device)? The structure I use is this one here: $ diskutil list /dev/disk0 #: ...
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1answer
7k views

How to determine which files are on SSD on Fusion Drive?

My question is: How can i determine which files are on the SSD "partition" on Fusion Drive? I have an iMac with 1TB Fusion Drive, and it would be good to know which apps or data are on which ...
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1answer
415 views

Fusion-drive on OS 10.7

I have a new iMac, but I need to revert back to OS10.7 for software compatibility issues at work. Will the fusion-drive function properly?
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2answers
2k views

Fix fusion drive partition mess from bootcamp assistant

I have a self made fusion drive on a 2009 iMac using a 256gb ssd and a 3tb hard drive. After the 10.8.3 update yesterday I tried to create a bootcamp partition but unfortunately it failed after hours. ...
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0answers
281 views

How do I troubleshoot appalling write performance on DIY Fusion Drive? [closed]

I recently bought a 120 GB OCZ Vertex 3 and stuck in my 2009 Macbook White, together with a optibay-adapter for the old 500 GB HDD and configured them as a corestorage "fusion drive" by using the ...
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2answers
1k views

Can I use a mSATA drive to create a Fusion Drive in my iMac?

I have a Samsung MZ MPA1280/0D1 128 SSD mSATA drive. Can I use this to create a Fusion Drive in my 2011 iMac 27" and, if so, what cable will I need in order to connect the mSATA drive properly?
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486 views

Fusion Drive not moving data back to SSD - anyone encounter this?

I'm about to buy a Mac Mini and have got the DIY Fusion Drive parts handy. I'm actually a bit on the fence about the choice of manual SSD+HDD separation with the aid of symlinks and proper Fusion ...
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0answers
861 views

Fusion Drive Setup: Possible to force the HDD to spin down as long as your reading from/writing to the SSD?

I'm considering to replace my optical drive in my MacBook Pro with an SSD. When using it as separate Volume, the advantage is that you can spin down the HDD, thus reduce noise and first and foremost, ...
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0answers
1k views

Fusion Drive with SSD and HHD Hybrid Drive (e.g. Seagate Momentum XT 750 GB with 8 GB SSD): Good idea or plain nonsense?

I’ve seen numerous instructions on how to setup a Fusion Drive from your own SSD and HD, e.g. Can I make a DIY Fusion Drive? Very silly question: How would a Fusion Drive built from an SSD and a ...
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1answer
808 views

Selecting a SSD for Fusion Drive

My aging Early 2009 Macbook White is getting a bit long in the tooth, so after learning about Fusion Drive, I'm considering combining the existing 500GB HDD with a budget-to-medium-class SSD drive, ...
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1answer
2k views

Split an Apple-supplied Fusion Drive back into two separate volumes?

Is it possible to take an Apple factory-created Fusion Drive and downgrade it into two separate volumes? I understand this would also necessitate reinstalling the OS and Recovery Partition etc. The ...
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2answers
2k views

Windows will not boot to my boot camp partition on a DIY fusion drive - gives “No bootable device found” error

I have a MacBookPro 9,1 (mid-2012, non-retina) running OS X 10.8.2. Here is what I have done to my system: Installed Windows 7 x64 Pro to a boot camp partition; installed all windows updates. Using ...
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4answers
541 views

Can I create a fusion drive with an HDD that already has a boot camp partition?

I'm planning to replace the optical drive in my MacBook Pro 9,1 (mid-2012, non-retina) with an SSD and make the two internal drives into a fusion drive, and I know that creating a boot camp partition ...
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5answers
9k views

How can I verify that a DIY Fusion Drive is working as it should?

I installed an SSD in my 2011 Mac Mini to run alongside the stock 500GB HDD. After carefully reading through a number of tutorials, I used Terminal to merge them into a single "Fusion Drive". I cloned ...
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3answers
2k views

What happens when you remove (or lose) the SSD from a Fusion Drive?

After storing data on a Fusion Drive, is it possible to downgrade your Mac to use the hard drive (HDD) by just removing the solid state drive (SSD)? In particular, I was wondering what happens when ...
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3answers
10k views

“No Bootable Device” after failed Boot Camp installation (Windows 8 - 1TB Fusion Drive)

On my new iMac /w a 1TB Fusion Drive, I tried to install Windows 8 (still technically unsupported) using the following method: ...
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2answers
2k views

Made DIY fusion drive… now recovery partition won't boot

diskutil list shows what I am fairly certain is the correct layout. The recovery partition is "outside" the core storage logical volume group on the rotational disk: % diskutil list /dev/disk0 ...
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2answers
1k views

What is the layout of a real Apple supplied fusion drive?

Would someone who has a fusion drive that they bought directly from Apple please provide diskutil output sufficient to describe the choices they made? I've seen lots of different sets of advice for ...
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0answers
234 views

Unable to create a DIY Fusion Drive using a 3 TB hard drive

I'm trying to make a Fusion Drive with a Samsung 830 256GB SSD and a 3 TB 3.5" HDD (connected via SATA to my late 2012 Mac mini). I'm able to create the Fusion Drive, but when I start to install ...
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2answers
1k views

How do I see disk usage within a Fusion Drive (CoreStorage Logical Volume)?

I just created a "Fusion Drive" on my MacBook Pro by following "How to make a Custom CoreStorage Drive in OS X". It was created with a 256GB SSD and 320GB HD, with the SSD set as the "primary" disk ...
3
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1answer
2k views

OS X Mountain Lion does not boot after the creation of a Fusion Drive

I have followed a guide to set up the core storage logical volume to use one SSD and one HDD. Since then, I have encountered multiple errors such as: 69822 Couldn’t rediscover disk after operation ...
5
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1answer
284 views

DIY fusion Drive two identical volumes show up booting with option key?

I've succesfully built a fusiondrive on my late 2009 iMac (256Gb Samung830+2TB HDD). I set the size to 100%, so I have no recovery partion. However when I boot with the option key I get two identical ...
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3answers
1k views

How can I manually force a file of a Fusion Drive to the SSD?

From what I understand, the implementation of the Fusion Drive is at the OS level (coreStorage). Yet, I want to know if it's possible to manually interfere in the management for a specific file or ...
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0answers
250 views

Where does a Fusion Drive store Time Machine local backups? Should I disable local backups?

Time Machine in OS X does store local backups (snapshots) on the local harddrive if you have Time Machine enabled. Even if you backup regularly, the size of the local backups increases steadily. In a ...
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5answers
14k views

DIY Fusion Drive: Adding Recovery HD to a CoreStorage Volume Group

After creating a "DIY Fusion Drive" using the methods below in 10.8, I'm now wondering how to add a RecoveryHD partition to the internal drive. Here's what I did to create a Logical Volume Group ...
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8answers
16k views

Can I make a DIY Fusion Drive?

I have a Mac Mini with two drives: a 256GB SSD and a 500GB HDD. From what I've read, the new Fusion Drive does all of it's magic in software, using the Core Storage APIs. Can I get my setup to ...