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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1answer
42 views

DIY Fusion drive with 3 drives

Is it possible to build a DIY Fusion drive using 3 drives - 2 HD's and 1 SSD? Will the Fusion machinery optimise on three levels i.e. SSD, then fast HD, then slow HD? I have a mid 2011 27" iMac, ...
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0answers
39 views

Fusion Drive lost space after bootcamp-fail. resizeStack throws an error. What can I do?

I have a 2 TB Fusion Drive in a 5K iMac (Late 2015). Two days ago, I started the bootcamp assistant to create a partition for Windows 10. It got stuck (let it run 30 minutes), however, which forced me ...
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2answers
73 views

Fusion drive is not working although the system can find the SSD

I own an iMac late 2013 with a fusion drive. Recently I installed Windows 8.1 using Bootcamp on a separate partition on my disk. After a few days, the booting process of OS X started failing and I had ...
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0answers
12 views

Reset MacMini Fusion Drive Volume

When install Windows10 with BootCamp,click new partition serial times,disk volume is disorder now. Can't merge by BootCamp and Disk Utility. diskutil list ...
0
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1answer
76 views

Problem with 3 TB Fusion Drive, it can't be deleted, formatted or partitioned

I want to clarify that I already followed the instruction with I think I messed up the Fusion Drive on my 1TB iMac (with BootCamp) but I think I have mayor problems. I followed the instructions to ...
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0answers
21 views

How to be sure that I installed the fusion drive properly?

Hello guys I would like to know how to be sure that I properly installed the fusion drive because last night I bought an iMac but I had to reinstall el capitan for reasons but since I'm a newbie I ...
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2answers
62 views

Not able to restore my 3TB fusion drive late 2013 iMac

Last weekend my iMac started to act in a very strange way. While I was working, my Mac was very slow and the mouse and keyboard didn't respond very well. So I decided to reboot because having two ...
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0answers
25 views

Add SD card to fusion in MacBook Pro 12,1

I wanna know if it's possible to add a 128 GB to my MacBookPro12,1 (13-inch Retina, early 2015) and make 250 GB Fusion drive. $ sudo diskutil list /dev/disk0 (internal, physical): #: ...
2
votes
1answer
117 views

Can't delete Logical Volume Group on Fusion drive

I have a 2014 iMac Retina running OS X Yosemite and a 3TB Fusion drive. I am attempting to restore it from a Time Machine backup, but when I try to do so, I get the error message, "The disk can't be ...
0
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2answers
101 views

I think I messed up the Fusion Drive on my 2TB iMac

I want to ask you how can I get back together my Fusion Drive (merge HDD and SSD together). I was installing Windows 10 and during installation it crashed and I was not able to boot in Windows neither ...
2
votes
2answers
44 views

Reuse an iMac's fusion drive?

I have a 2013 iMac with a broken logic board and display. It's too expensive to repair, but I'd like to salvage the fusion drive. If I put the drive in an external case will it work?
0
votes
1answer
62 views

Use SSD partition on Mac Mini Fusion Drive through Windows Bootcamp

I've been checking through so many questions here, a lot of forum posts, and I can't get a clear answer to what it is I think I want to do. I bought the fusion drive because well...SSD...I added a ...
1
vote
1answer
82 views

What's wrong with my Fusion Drive?

I'm having weird issues with my internal Fusion Drive. Symptoms: It gave itself a new cryptical name, and I can't change it back In most cases I cannot install new software anymore (e.g. I cannot ...
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vote
0answers
29 views

Is it possible to use diskutil to manipulate the read/write buffer of the SSD portion of the fusion drive?

Has anyone been able to use diskutil to manipulate the Core Storage LVM into increasing the size of the read/write buffer of the SSD? Currently the Fusion Drive keeps 4 GB free for new reads/writes. ...
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0answers
280 views

Boot Camp fails on iMac late 2015 2TB Fusion drive

After one week of try and error I need your help! I'm trying to install Windows 8.1 via Boot Camp on my iMac. What I have: - late 2015 iMac 27", 2TB Fusion drive, OS X 10.11.1 - Windows 8.1 64-bit ...
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0answers
39 views

Encrypted hard-drive I can't reformat in Disk Utility

I have an external HDD I wish to reform (erase) so I can put inside my MBP and make a DIY fusion drive. I've done the fusion drive before but Apple made me remove it for a logic board replacement. ...
2
votes
1answer
277 views

Messed up 1TB Fusion Drive Partitions (on iMac 5K)

Alright, so I did something stupid today, and I really need some help right now… So kinda like the situation in this post I think I messed up the Fusion Drive on my 1TB iMac (with BootCamp), I messed ...
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0answers
23 views

Can you backup/restore a Fusion drive with a simple 'dd' command?

I have a MacPro with two drives configured as a Fusion drive. It is worth noting that the HDD of the pair also has a bootcamp partition carved out. I'm nearly ready to upgrade from Mavericks to El ...
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0answers
39 views

Can I re-fuse a Fusion Drive?

Prior to doing a TimeMachine recovery, I got confused and did some stuff in diskutil I probably shouldn't have. I deleted the cs and expected OSX to recreate it but it didn't, and now my HDD is ...
0
votes
1answer
145 views

Fusion Drive with missing partition

Initially my Fusion drive (1TB data disk + 240 GB SSD) consisted of a single partition where it was installed El Capitan, then I split the fusion drive into two partitions, the second partition I ...
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0answers
164 views

Dual-booting a Linux distribution on a Mac with Fusion Drive

I'd like to install a Linux distribution alongside OS X on my 2014 5k iMac with a 3TB Fusion Drive (128GB SSD + 3TB HDD). Most guides about dual-booting Linux I've found focus on regular ...
2
votes
1answer
8k views

Why does Apple recommend a 2TB FD over a 1TB Fusion Drive for iMacs with 32GB of memory?

Under the 'Choose Storage' section on Apple's iMac configuration page there is a blue link titled 'How much storage is right for you? (Choose Storage) '. In that dialog it says: For the best ...
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votes
1answer
1k views

Boot camp does not boot after El Capitan update

I have a 2008 Macbook 5,1 (aluminium unibody). I had Bootcamp on it. Then, I replaced the DVD with a SSD and made a DIY fusion drive. It was working properly until this year's May, when I cloned the ...
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0answers
50 views

Lost a Fusion drive boot disk

i can see my Fusion Drive disks (ssd+hdd) in Terminal: But i lost it in the boot and cant boot MAC OS. (please see album with photos on http://imgur.com/a/N5zY2 ) I cant repair my system, when i ...
0
votes
1answer
612 views

Deleted all partitions on Fusion Drive. Don't know how to recover

I'm kind of a novice here, and I think I got in over my head. I was trying to do a clean install of El Capitan on my 5K iMac. It has a 1TB Fusion drive. I booted from a USB drive, entered Disk ...
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0answers
137 views

Does OS X 10.11 reserve space on the Fusion drive for RAM swapping?

I know the Fusion drive holds the OS and commonly used programs, but I haven't been able to confirm it reserves space for any "swap files" needed when RAM is fully utilized?
0
votes
1answer
41 views

How to remove windows partition without having to erase the other one?

I have an imac late 2013 with a fusion drive. I've created a windows 10 partition and I'd like to delete it. I tried with bootcamp and disk utility but as you've probably heard before, it came up with ...
0
votes
1answer
149 views

Why can I only have 2 partitions on my 3TB Apple Fusion Drive?

According to Apple, I can only have 2 partitions on my 3 TB Fusion Drive. I do not understand why. Techtool Pro made an eDrive, their emergency boot drive, and Apple made their Recovery HD. It ...
0
votes
1answer
106 views

Does my late 2012 iMac 21" support fusion drives?

Back in June 2013 I bought an 21" iMac with a standard 1TB HDD. By now OWC offers upgrades for these machines in the form of an SSD expansion board, which can be used to form a fusion drive with the ...
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0answers
237 views

Broken fusion drive - SSD size is 0B and 'No CoreStorage logical volume groups found'

Some context first: I have late 2012 iMac 27" with 1TB fusion drive. Some time ago, for whatever reason, the SSD drive became visible in Disk Utility. I happily used the drive for Yosemite and ...
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0answers
92 views

Random freezes during work (Fusion Drive not removed correctly?)

I have a Macbook Pro 13" late 2011 and ever since I've replaced DVD-reader for an SSD my notebook started freezing sometimes. It happens suddenly, for no reason whatsoever and I can only move mouse ...
2
votes
1answer
843 views

The full size of the Fusion Drive is not available for repartitioning

Any help would be greatly appreciated, I've found so many similar questions but none that match mine exactly. I created a partion on my 2013 iMac in order to test out the Yosemite upgrade. I decided ...
2
votes
1answer
2k views

Restoring Fusion Drive after error on partition erase

I think I'm lost and need some help with my Fusion Drive. I have new iMac Retina 5k with 3TB Fusion Drive and preinstalled Yosemite. Things I did so far: I was working on my iMac and had ...
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vote
0answers
72 views

How to split fusion drive?

I have MacBook Pro late 2012. Instead DVD I made SSD and Fusion Drive by some instructions from web. As you know it's logical drive and looks like one. But now I need second logical partition for ...
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votes
0answers
38 views

Mac Mini HDD noises and internal HDD Standby

I have a default Mac mini 2.8GHz 2014 with Fusion Drive. My problem is that the mac makes a few noises. Because it is my home server and guest are sleeping in that room these noises are annoying. I ...
0
votes
1answer
621 views

Can I replace the HDD in a Fusion Drive?

I'm thinking about buying a refurbished iMac that has a 1 Tb fusion drive. Is it possible to replace the stock HDD with a 3 Tb drive?
2
votes
2answers
691 views

Boot Camp does not boot after disk cloning

I've got a MacBook5,1, and I replaced the CD drive with a SSD. Then, I made a "DIY fusion drive". Before doing it, I was using the regular setup, with Boot Camp. Then I put the SSD and made the Fusion ...
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votes
0answers
123 views

1TB DIY Fusion drive on MacBook Pro 13'' 2012 OS installation problem

I created DIY Fusion drive using a Seagate 750GB HD and a Samsung Evo 850 256GB, a total of 1TB Fusion on my MacBook Pro i7 2.7 Ghz. After creating the Fusion drive, I used Yosemite 3.0 USB ...
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votes
3answers
433 views

Can OS X be installed on the ssd part of the fusion drive?

I am looking at purchasing a mac mini and need to decide on a storage option. I want either an ssd or the fusion drive however I am not sure whether OS X can be installed on the SSD part of the fusion ...
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0answers
22 views

Unnable to dismount my fusiondrive - I removed one physical volume

I bought a Macbook Pro Retina 13 w/ 128 flash. When I try to put all my stuff on it I verified that it doesn't fit. So my friend pick an 128 SDXC card and made a Fusion drive with my standard internal ...
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0answers
19 views

Aperture library on self-created FusionDrive: References are lost

I know it's a bit late to ask Aperture questions, but anyway... I run Aperture on an iMac with a self-created FusionDrive. The FusionDrive's volume is called FusionDrive, and it consists of an SSD ...
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vote
1answer
2k views

Fusion Drive seems to be messed up

I felt that my iMac late 2012 became pretty slow, above all after login. Now when I look into disk utility, it seems that my disk doesn't behave as Fusion Drive any more: An output from terminal: ...
2
votes
2answers
256 views

Resize FusionDrive to fill empty space?

Context: I wanted to install Windows 8 onto my Mac by repartitioning my FusionDrive. Using the partition BootCamp provided didn't work, so I found a "solution" on Apple forums to create empty space ...
0
votes
1answer
369 views

How do i get full capacity from Fusion drive on vmWare ESXi 6.0 Mac Mini 7,1

I managed to install the free vmWare ESXi 6.0 hypervisor on a Mac Mini 7,1. It's running rather nicely from a USB memory. The mini has s 2TB Fusion drive. My problem is that i can only get the 106 GB ...
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0answers
110 views

Mount part of a failed Fusion drive

Long story below. I have the rotating 3TB drive part of a fusion drive. Is it possible to fix/mount/access the files on this drive? I have it in a external usb dock. I get the option to "fix" but it ...
2
votes
1answer
163 views

Should I create a Fusion Drive before or after downgrade (from Yosemite to Mavericks)?

I bought a used Mac Mini late 2012 with installed Yosemite and two drives: SSD 128 GB and HDD 500 GB. I want to create a Fusion Drive and downgrade to Mavericks via bootable USB flash drive. What ...
2
votes
1answer
7k views

diskutil shows Macintosh HD is missing (with Recovery HD occupying the entire space)

So yesterday I managed to screw up my iMac 2012 (with Fusion Drive) by installing the Mac OS X 10.10.2 update... The installation stalled and when I tried to restore from an external drive using Time ...
2
votes
5answers
2k views

Can not delete Free Space on iMac 5K: Partition doesn't appear in CS list

I recently tried to install a bootcamp instance of Win 8.1. The install failed for some reason (wasn't clear from the error message). This left me with an unaddressable partition. I erased that ...
4
votes
3answers
24k views

I think I messed up the Fusion Drive on my 1TB iMac (with BootCamp)

this is a somewhat similar post to this one (Can't create partition on free space with Disk Utility) but not quite... It started with me creating a BootCamp partition (around 145 GB) for Windows ...
2
votes
2answers
3k views

Upgrading to SSD on 2010 MBP

I have a mid-2010 MacBook Pro, which I want to upgrade with an SSD in the Optical Drive slot and create a Fusion Drive (using the Terminal diskutil command in Recovery Mode) and then re-install OS X ...