Apple Core Storage (sometimes referred to as coreStorage or CoreStorage) maintains a world of virtual disks that can provide the user with flexibility in allocating their hardware.

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16answers
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Apart from being able to encypt an entire volume, what are the other differences of FileVault 2 over FileVault?

Does FileVault 2 in Lion have any other differences compared to the old version, FileVault in previous releases of the system? Are there any additional benefits to using the new version?
44
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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 ...
3
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4answers
1k views

What techniques for disk, volume and file system management are possible with OS X, but troublesome within Disk Utility?

In the past, Disk Utility was the best starting point for the vast majority of disk-related tasks. As technologies within (or possible with) OS X have developed – without equal development of Disk ...
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vote
1answer
883 views

Resizing or expanding a CoreStorage volume

I bought a new SSD with 750 GB and made two partitions: 600 GB and 150 GB. The smaller one was thought to be a Bootcamp partition one day, but to date it was just another unused partition. When I ...
8
votes
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 ...
0
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1answer
776 views

Apple-provided software to measure or estimate the CPU load associated with Core Storage

With Mac OS X 10.7 (Build 11A411) alone, or with Xcode 4.1: Q: is there a way to accurately measure, or at least estimate the CPU load associated with Core Storage? A graphical view of load on a ...
7
votes
3answers
6k views

How can I rename a Logical Volume Group?

I have noticed that while I can safely change the name of the Logical Volume (LM Volume) in /Volumes (currently: Apple SSD), I cannot find a way to change the name of the Logical Volume Group ...
3
votes
3answers
2k views

Why does my 3TB Seagate HD keep formatting as a Logical Volume Group

This is really annoying. I have a brand new Seagate 3TB 7200 RPM hard drive that I am trying to format/partition in Disk Utility. Every time I change any settings or erase the drive, it changes it to ...
5
votes
2answers
8k views

how can I delete a partition (coreStorage logical volume?) from the Terminal?

I finally understood why Disk Utility will not change the partitions on my HDD, even though I added the most recent one myself (maybe significant: to test Yosemite DP) with it. Now I see it says it ...
2
votes
1answer
373 views

Can I have both a case-insensitive system volume and a case-sensitive volume within an encrypted CoreStorage volume?

( seems possibly related to Is it possible to have multiple filevault2-activated partitions on one disk? ) I have a MBP with a single internal SSD and I'd like: to have everything on the disk ...
1
vote
1answer
66 views

Is it possible to have multiple filevault2-activated partitions on one disk?

What I would like to have: A disk with the following systems on it: OS X 10.8 (FV2-encrypted) OS X 10.9 (FV2-encrypted) Windows 7 When I try to start FV2-encryption on my secondary partition, OS X ...
2
votes
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 ...
1
vote
1answer
390 views

OS X Partition not resizable

3 weeks ago I installed Yosemite public beta onto a brand new Macbook Air which arrived with Mavericks pre-installed. To carry out the installation I created a new partition for Yosemite and so had ...
0
votes
4answers
3k views

Restore Macintosh HD to its original partition configuration

I seem to have badly botched a Boot Camp installation of Windows 8.1. I used Boot Camp Assistant to create a 200 GB BOOTCAMP partition on my 1 TB Fusion Drive. I then rebooted and failed to install ...