Tackle stubborn disk partitioning in OS X If partitioning a drive with Disk Utility gives you unmount or resource busy errors, there may be workarounds you can use.

Apple has publicly touted a significant new feature in OS X 10.9 Mavericks designed to maximize RAM, storage and CPU use while also boosting power efficiency: Compressed Memory.

It notes: "Unlike most other UNIX versions, Mac OS X does not use a separate partition for the virtual memory swap file.

As most OS X users are probably aware "virtual memory" (or paging, in OS X's case) is always "on," as is the case with any modern operating system. It is an integral part of the kernel's ...

The 499MB in the front is wierd. Usually it is that 100MB up front. OS and then maybe a manufacturer OS recovery partition. But I wouldn't touch them other then moving the 560MB to the end.