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.
2
votes
1answer
81 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
#: ...
9
votes
1answer
539 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 ...
1
vote
1answer
89 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?
0
votes
2answers
562 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. ...
2
votes
0answers
123 views
How do I troubleshoot appalling write performance on DIY Fusion Drive?
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 ...
2
votes
2answers
280 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?
1
vote
0answers
244 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 ...
1
vote
0answers
319 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, ...
0
votes
0answers
432 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 ...
2
votes
1answer
352 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, ...
1
vote
1answer
421 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 ...
1
vote
2answers
889 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 ...
3
votes
3answers
238 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 ...
2
votes
2answers
3k 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 ...
9
votes
3answers
633 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 ...
1
vote
3answers
3k 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:
...
0
votes
2answers
824 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
...
2
votes
2answers
663 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 ...
2
votes
0answers
213 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 ...
2
votes
1answer
521 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 ...
1
vote
1answer
1k 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
votes
1answer
181 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 ...
0
votes
1answer
508 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 ...
1
vote
0answers
199 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 ...
7
votes
4answers
6k 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 ...
41
votes
8answers
13k 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 ...
