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.

learn more… | top users | synonyms

0
votes
0answers
19 views

Get data from internal Fusion Drive

Currently I am experiencing a few issues with my old MacBook Pro 7.1. It is suddenly crashing and rebooting, sometimes it is not rebooting but starting to make a low "beep" sound while blinking the ...
0
votes
1answer
53 views

Messed up my 1TB Fusion drive on my iMac with Disk Utility

Soooo something bad happened recently with my 1 TB Fusion drive on my 5K late 2015 iMac. I was creating a new 100 GB partition on my disk. So while the disk utility was busy scanning etc (doing its ...
0
votes
0answers
19 views

Boot Camp - frozen during hard drive partitioning - iMac 27” w/ 3TB Fusion Drive

(iMac 27” late 2012, 3.4GHz, 3TB Fusion Drive, running El Capitan 10.11.4.) I've gone through the Boot Camp Assistant steps with all of the recommended options (created a bootable Windows flash ...
0
votes
0answers
33 views

How can I replace the HDD part of a Fusion drive with an SSD?

I have an Mac Mini computer with an Fusion Drive (which is really an HDD and an PCIE SSD). I would like to replace the HDD of the Fusion Drive with a 1TB 2.5" SSD. Do I need to do anything special to ...
0
votes
1answer
87 views

Problem Installing Windows 7 via Boot Camp

I've recently created a DIY Fusion drive (240GB SSD & 1TB HDD) using the core storage commands on my mid 2012 MacBook Pro, I've restored from a time machine backup and everything works great. Now ...
0
votes
2answers
57 views

Problem when booting OS X from an external USB drive

I would like to create a Fusion Drive from my SSD and HDD both installed inside my MacBook Pro 15" Mid 2012. I've read an article online which said that in order to do that, I'd need to boot Mavericks ...
1
vote
0answers
58 views

Fusion drive suddenly not bootable: “Too few free segments”, made read-only

I've dealt with a lot of disk issues over the years admining lots of different OSs, but this one is new to me... help/ideas appreciated before I give up and restore! Woke up this morning to my iMac ...
2
votes
3answers
153 views

Missing space on Fusion Drive (partition problem)

I know this or similar problems have been discussed, but (to be honest) I can't see the trees for the wood. I tried to create a partition on my fusion drive (1TB Hd + 240 MB SSD). No partition was ...
0
votes
0answers
45 views

Mounting the HDD part a DIY Hybrid Drive via USB

I have an iMac Late 2012 with what I thought was a 1TB Fusion Drive. Well, the other day I started getting read errors and after a little diagnostics, turns out the drive is failing. So, I bought ...
3
votes
1answer
115 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, ...
0
votes
1answer
108 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 ...
1
vote
2answers
109 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 ...
0
votes
0answers
22 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
votes
1answer
130 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 ...
0
votes
0answers
29 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 ...
0
votes
2answers
94 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 ...
0
votes
0answers
40 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
352 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
votes
2answers
239 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
52 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
136 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
104 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 ...
1
vote
0answers
33 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. ...
0
votes
0answers
409 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 ...
0
votes
0answers
56 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
532 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 ...
0
votes
0answers
27 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 ...
0
votes
0answers
42 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
164 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 ...
1
vote
0answers
250 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
13k 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 ...
0
votes
1answer
3k 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 ...
1
vote
0answers
55 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
939 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 ...
0
votes
0answers
142 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
45 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
183 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
154 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 ...
1
vote
0answers
283 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 ...
0
votes
0answers
100 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
992 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
3k 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 ...
1
vote
0answers
73 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 ...
0
votes
0answers
44 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
763 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
1k 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 ...
0
votes
0answers
127 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 ...
3
votes
3answers
552 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 ...
1
vote
0answers
20 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 ...
1
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: ...