All Questions
Tagged with core-storage ssd
17 questions
4
votes
1
answer
4k
views
How do I re-fuse an unfused Fusion Drive, ideally without formatting?
I have a 5k iMac with a Fusion Drive. I had trouble with macOS, so I reinstalled it, and restored from a Time Machine backup using Migration Assistant.
After that, the system has been very slow, and ...
- 1,725
5
votes
1
answer
2k
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, ...
- 378
1
vote
1
answer
2k
views
Crashed when creating a partition - now missing drive space!
Just a couple of hours ago, while I was taking a GNU course, I decided to create a partition on my SSD to have ubuntu installed, meanwhile the disk utility was doing that, suddenly it just crashed and ...
- 11
1
vote
0
answers
79
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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. ...
- 11
0
votes
1
answer
3k
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How to rename (main) hard disk back to default? And is the disk default really LVG?
I recently reinstalled OS X, when it asked me to erase the disk I just left it Untitled, since there's no instruction to rename it to whatever on this Apple support page, after restoring with Time ...
1
vote
0
answers
1k
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 ...
- 11
2
votes
1
answer
6k
views
Can someone explain what 'diskutil cs revert' does?
so I was following some instructions to get my windows bootcamp partition to resize in disk utility, because after upgrading to Yosemite I was unable to resize my partition to give one side more space ...
- 45
1
vote
1
answer
2k
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Disk Utility not letting me partition my SSD or modify the current ones
Just yesterday I finally got my hands on a MacBook Pro in which I was planning to install Ubuntu and Windows aside from OS X for studying purposes.
I was barely beginning by partitioning the disk, or ...
2
votes
2
answers
411
views
My SSD Drive has been converted to a Core Storage drive and cannot be erased/reformatted?
I put an SSD drive into my macbook pro.
I should say that this drive hadn't been formatted and was a bootable drive with Yosemite OS on it, taken from another macbook pro...
I booted the system up in ...
3
votes
2
answers
2k
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 ...
- 131
0
votes
2
answers
194
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 ...
- 358
5
votes
6
answers
16k
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 ...
- 165
10
votes
3
answers
8k
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 ...
- 101
0
votes
4
answers
7k
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 ...
- 50.2k
1
vote
0
answers
380
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 ...
- 50.2k
55
votes
6
answers
23k
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 ...
- 747
12
votes
2
answers
3k
views
Will FileVault 2 wear out my SSD faster?
I'm considering using FileVault 2 when I upgrade to Lion. Though my understanding of it is weak, it seems as though it shouldn't really increase the number of reads or writes per disk operation ...
- 887