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Odds and Ends: PowerMac G5 2.5 GHz ship date; DiskUtil petition; more
The boot drive's format and partition structure can be checked both in the OS X graphical interface and in the Terminal.
If partitioning a drive with Disk Utility gives you unmount or resource busy errors, there may be workarounds you can use.
If you have a specific volume on your Mac that you would like to keep from being edited when attached, here's how to protect it.
While not the expected behavior, this bug is technically not a breach in security.
Running low on disk space can greatly slow down your computer. Here are several ways to look this up on your system.
While encrypting and decrypting a volume can be done on the fly, the option for changing its password is a bit hidden.
The CoreStorage volume manager behind Apple's Fusion Drive can be used to create your own spanned volumes in any Mac running Lion or later.
OS X requires that you manually eject all drives before disconnecting them, which can be a bit of a burden if you have multiple drives attached. Here's a way to simplify things a little.
If you want to share a drive but keep some files on it encrypted, you can easily do so with a couple of approaches in OS X.