When you set up an external drive for use with your Mac, you may wish to partition it for various uses. For instance, you might want to isolate automatic Time Machine backups from manual ones. The classic way to do this on a single drive is to use Disk Utility to partition it, where you split the drive into two or more logical volumes that the system sees as separate file systems. Since OS X supports Apple’s CoreStorage volume management technology, if you wish to do this then you can do so via classic partitioning, as well as through CoreStorage. Continue reading
How to partition a hard drive in OS X using Core Storage
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When you press the power button to start up your Mac, you will be met with a boot chime that lets you know your system is healthy and ready to load OS X. However, this sound can be a bit intrusive, and there may be times when you would prefer to not have it play. Since sleep mode will not make such sounds when waking, you can always use it instead of shutting down your Mac; however, if you need to cold-boot your Mac, then you have a couple of approaches for muting that boot chime. 
