Here's how to split your Mac hard drive into multiple partitions or volumes so that you can run more than one OS on your Mac, or divide up your Mac so different users can have their own space. We ...

When you put a new hard drive in your Mac—or connect an external one using FireWire or USB—you need to decide how to partition the drive and what file system to put on it. The easiest way to ...

This guide is for those people, the ones who want to test the new OS X beta without wrecking their Mac—you never want to put your data at risk by installing beta software on your main partition.