My next step was to resize my existing drive to make room for a new logical volume. CoreStorage can resize a drive non-destructively, moving existing data aside and clearing capacity for other uses.
CoreStorage
Non-Destructively Convert an Existing Drive to CoreStorage
The first step to storage bliss is conversion: Mac OS X can non-destructively convert an existing drive to CoreStorage! From there you’re free to resize it, create new volumes, and pretty much anything else you’re interested in doing to your drives!
Fun Mac OS X Storage Tricks with CoreStorage
Mac OS X 10.7 “Lion” added a volume manager called CoreStorage, a development I was gleeful to report last year. But what can you do with CoreStorage? Here are some examples.
The Four Horsemen of Storage System Performance: Get Smart
The Four Horsemen of storage system performance cannot be denied, but they do offer a clear path forward. Storage systems must improve in many different areas, from spindles and drives to caching and I/O bottlenecks. But above all else, storage systems must become smarter in order to become faster, and this requires greater insight into the true nature of the data stream being stored. All storage performance developments, from the laptop to the enterprise, boiled down to adaptations to the demands of the Four Horsemen.
Undocumented CoreStorage Commands
I am pleased to note that CoreStorage, the volume manager in Mac OS X Lion, is much more functional than I had guessed, including a number of undocumented but seemingly functional commands for on-the-fly resizing of logical volumes as well as manipulation of physical volumes.
